1. Anionic Copolymerization of Styrene and 1,1-Diphenylethylene
Heimei Yuki, Junichi Hotta, Yoshio Okamoto, and Shunsuke Murahashi, Bull. Chem. Soc. Jpn., 40, 2659-2663 (1967)
2. Anionic Polymerization of trans-β-Methylstyrene
Yoshio Okamoto, Heimei Yuki, and Shunsuke Murahashi, Bull. Chem. Soc. Jpn., 41, 197-203 (1968)
3. Reaction of Allylbenzene with n-Butyllithium in Tetrahydrofuran
Yoshio Okamoto and Heimei Yuki, Bull. Chem. Soc. Jpn., 41, 677-683 (1968)
4. Anionic Copolymerization of Styrene and trans-Stilbene with n-Butyllithium
Heimei Yuki, Masahiko Kato, and Yoshio Okamoto, Bull. Chem. Soc. Jpn., 41, 1940-1944 (1968)
5. Reaction of trans-Stilbene with n-Butyllithium in Tetrahydrofuran
Yoshio Okamoto, Masahiko Kato, and Heimei Yuki, Bull. Chem. Soc. Jpn., 42, 760-765 (1969)
6. Anionic Copolymerization of Isoprene and 1,1-Diphenylethylene
Heimei Yuki and Yoshio Okamoto, Bull. Chem. Soc. Jpn., 42, 1644-1649 (1969)
7. Anionic Copolymerization of 2,3-Dimethylbutadiene and 1,1-Diphenylethylene with n-Butyllithium in Benzene
Heimei Yuki, Yoshio Okamoto, and Katsutoshi Sadamoto, Bull. Chem. Soc. Jpn., 42, 1754-1755 (1969)
8. Stereospecific Polymerization of o-Methoxystyrene by Anionic Initiators
Heimei Yuki, Yoshio Okamoto, Yoshiteru Kuwae, and Koichi Hatada, J. Polym. Sci.: A-1, 7, 1933-1946 (1969)
9. Anionic Copolymerizations of 1,1-Diphenylethylene with o- and p-Methoxystyrene
Heimei Yuki and Yoshio Okamoto, Polym. J., 1, 13-18 (1970)
10. Anionic Copolymerization of Butadiene and 1,1-Diphenylethylene
Heimei Yuki and Yoshio Okamoto, Bull. Chem. Soc. Jpn., 43, 148-151 (1970)
11. Anionic Copolymerization of trans-Stilbene with Butadiene, Isoprene, and 2,3-Dimethylbutadiene
Heimei Yuki, Yoshio Okamoto, Katsuya Tsubota, and Koichi Kosai, Polym. J., 1, 147-154 (1970)
12. Stereospecific Polymerization of o-Methoxy-α-methylstyrene
Yoshio Okamoto, Hidekazu Takano, and Heimei Yuki, Polym. J., 1, 403-409 (1970)
13. Nuclear Magnetic Resonance Studies of Isoprenyllithium Derived from 1,1-Diphenyl-n-butyllithium-3,4-d5 and Isoprene
Heimei Yuki and Yoshio Okamoto, J. Polym. Sci.: A-1, 9, 1247-1260 (1971)
14. Anionic Polymerization of 2,3-Dimethylbutadiene
Heimei Yuki, Yoshio Okamoto,
and Hidekazu Takano, Polym. J., 2, 663-669 (1971)
15. Nuclear Magnetic Resonance Studies of 1,1-Diphenyl-n-butyllithium in Mixed Solvents of Benzene and Tetrahydrofuran
Yoshio Okamoto and Heimei Yuki, J. Organometal. Chem., 32, 1-6 (1971)
16. Solvolysis of Sodium 4-Acetoxy-3-nitrobenzenesulfonate Catalyzed by Oligo(4(5)-vinylimidazole)
C. G. Overberger and Yoshio Okamoto, Macromolecules, 5, 363-368 (1972)
17. Anionic Copolymerization of α-Methylstyrene and 2,3-Dimethylbutadiene
Heimei Yuki, Yoshio Okamoto,
Hidekazu Takano, and Koji Ohta, Polym. J.,
3, 442-447 (1972)
18. Alternative Explanation for a Saturation Phenomenon Exhibited by Poly-4(5)-vinylimidazole and an Anionic Ester
Yoshio Okamoto and C. G. Overberger, J. Polym. Sci.: Polym. Chem. Ed., 10, 3387-3395 (1972)
19. Conformational Studies of Polyamides and Model Compounds Derived from Cyclic Dicarboxylic Acids and Spirodiamine
Yoshio Okamoto and C. G. Overberger, Macromolecules, 7, 614-618 (1974)
20. Anionic Copolymerization of Methyl Methacrylate and Other Methacrylates by n-BuLi in Toluene and THF
Heimei Yuki, Yoshio Okamoto, Koji Ohta, and Koichi Hatada, Polym. J., 6, 573-575 (1974)
21. Synthesis and Optical Properties of Asymmetric Polyamides Derived from Optically Active Dicarboxylic Acids and Spirodiamine
C. G. Overberger, Yoshio Okamoto, and V. Bulacovschi, Macromolecules, 8, 31-36 (1975)
22. Reactivity of Methacrylates in Anionic Copolymerization with Methyl Methacrylate by n-BuLi
Heimei Yuki, Yoshio Okamoto,
Koji Ohta, and Koichi Hatada, J. Polym.
Sci.: Polym. Chem. Ed., 13,
1161-1174 (1975)
23. Microstructure of Methyl Methacrylate-Trityl Methacrylate Copolymer Obtained by n-BuLi in THF
Yoshio Okamoto, Shinji Nakashima, Koji Ohta, Koichi Hatada, and Heimei Yuki, J. Polym. Sci.: Polym. Lett. Ed., 13, 273-277 (1975)
24. Anionic Polymerizations and Copolymerizations of Methacrylates – Reactivity of Monomer and Tacticity of Polymer
Heimei Yuki, Koichi Hatada, Koji Ohta, and Yoshio Okamoto, J. Macromol. Sci.-Chem., A9, 983-1006 (1975)
25. Heterotactic Polymers of Methyl α-(p-Bromophenyl)acrylate and Methyl α-(p-Chlorophenyl)acrylate
Koichi Hatada, Yoshio Okamoto, Hiroaki Ise, Schin-ichi Yamaguchi, and Heimei Yuki, J. Polym. Sci.: Polym. Lett. Ed., 13, 731-735 (1975)
26. Anionic Polymerizations and Copolymerizations of α-Substituted Acrylates
Heimei Yuki, Koichi Hatada, Koji Ohta, and Yoshio Okamoto, Appl. Polym. Symp., 26, 39-50 (1975)
27. Proton Spin-Lattice Relaxation Times of Polymers of Various Tacticities in Solution
Koichi Hatada, Yoshio Okamoto, Koji Ohta, and Heimei Yuki, J. Polym. Sci.: Polym. Lett. Ed., 14, 51-53(1976)
28. Stereospecific Anionic Polymerization and Copolymerization of 1,1-Diphenylethyl Methacrylate
Heimei Yuki, Yoshio Okamoto, Yoshiki Shimada, Koji Ohta, and Koichi Hatada, Polymer, 17, 618-622 (1976)
29. Tacticity Measurement of Polymethacrylate by Peak-Eliminated Fourier-Transform NMR
Koichi Hatada, Koji Ohta, Yoshio Okamoto, Tatsuki Kitayama, Yoshihiro Umemura, and Heimei Yuki, J. Polym. Sci.: Polym. Lett. Ed., 14, 531-535 (1976)
30. Carbon-13 Spin Lattice Relaxation Times of Polymethacrylates of Various Tacticities in Solution
Koichi Hatada, Tatsuki Kitayama, Yoshio Okamoto, Koji Ohta, Yoshihiro Umemura, and Heimei Yuki, Makromol. Chem., 178, 617-621 (1977)
31. Highly Asymmetric Selective Polymerization of (RS)-α-Methylbenzyl Methacrylate by Grignard Reagent-(–)-Sparteine Catalyst Systems
Yoshio Okamoto, Koji Ohta, and Heimei Yuki, Chem. Lett., 1977, 617-620
32. Polymerization of α,α-Dimethylbenzyl Methacrylate and Its Copolymerization with Methyl Methacrylate by Anionic Initiators
Heimei Yuki, Koji Ohta, Koichi Hatada, and Yoshio Okamoto, Polym. J., 9, 511-518 (1977)
33. Abnormal Chiroptical Properties of the Copolymers of (S)-(–)-α-Methylbenzyl Methacrylate and Trityl Methacrylate
Heimei Yuki, Koji Ohta, Yoshio Okamoto, and Koichi Hatada, J. Polym. Sci.: Polym. Lett. Ed., 15, 589-593 (1977)
34. Configurational Dependences of Carbon-13 and Proton NMR Spin-Lattice Relaxation Times of Various Polymethacrylates
Koichi Hatada, Tatsuki Kitayama, Yoshio Okamoto, Koji Ohta, Yoshihiro Umemura, and Heimei Yuki, Makromol. Chem., 179, 485-496 (1978)
35. Poly(β-amino acid)s. IV. Synthesis and Conformational Properties of Poly(α-isobutyl-L-aspartate)
Heimei Yuki, Yoshio Okamoto, Yutaka Taketani, Tetsuo Tsubota, and Yoshizo Marubayashi, J. Polym. Sci.: Polym. Chem. Ed., 16, 2237-2251 (1978)
36. On the Abnormal Optical Rotation of Poly[trityl methacrylate-co-(S)-α-methylbenzyl methacrylate]
Koji Ohta, Koichi Hatada, Yoshio Okamoto, and Heimei Yuki, J. Polym. Sci.: Polym. Lett. Ed., 16, 545-549 (1978)
37. Stereospecific Polymerization of Methacrylates with Ethylmagnesium Alkoxides
Yoshio Okamoto, Kazuhiko Urakawa, and Heimei Yuki, Polym. J., 10, 457-464 (1978)
38. Asymmetric-Selective Polymerization of 2,3-Epoxypropyl Methacrylate with Grignard Reagent-(–)-Sparteine System in Toluene at -78°C
Yoshio Okamoto, Kazuhiko Urakawa, and Heimei Yuki, Polym. J., 10, 473-475 (1978)
39. Anionic Copolymerization of (S)- or (RS)-α-Methylbenzyl Methacrylate and Methyl Methacrylate
Heimei Yuki, Koji Ohta, Yoshio Okamoto, and Koichi Hatada, Polym. J., 10, 505-511 (1978)
40. Asymmetric-Selective Polymerization of (RS)-α-Methylbenzyl Methacrylate
Yoshio Okamoto, Kazuhiko Urakawa, Koji Ohta, and Heimei Yuki, Macromolecules, 11, 719-723 (1978)
41. Asymmetric-Selective Polymerization of (RS)-α-Methylbenzyl Methacrylate with Cyclohexylmagnesium Chloride-(–)-Sparteine System in Toluene at -78°C
Yoshio Okamoto, Koji Ohta, and Heimei Yuki, Macromolecules, 11, 724-727 (1978)
42. Hydrolysis of α-Amino Acid p-Nitrophenyl Esters by Poly(Nα-methacryloyl-L-histidine)
Yoshio Okamoto, Nippon Kagaku Kaishi, 870-873 (1978) (Japanese)
43. Highly Asymmetric-Selective Polymerization of (RS)-α-Methylbenzyl Acrylate with Grignard Reagent-(–)-Sparteine and Its Modified Systems in Toluene
Yoshio Okamoto, Hisataka Gamaike, and Heimei Yuki, Makromol. Chem., 179, 1341-1343 (1978)
44. Microstructure of the Copolymers of Methyl Methacrylate with Other Methacrylates Obtained by Radical and Anionic Copolymerizations in Tetrahydrofuran
Heimei Yuki, Yoshio Okamoto, Yoshiki Shimada, Koji Ohta, and Koichi Hatada, J. Polym. Sci.: Polym. Chem. Ed., 17, 1215-1225 (1979)
45. Poly(β-amino acids). V. Synthesis and Conformation of Oligomeric α-Isobutyl-L-Aspartate
Heimei Yuki, Yoshio Okamoto, and Yuichi Doi, J. Polym. Sci.: Polym. Chem. Ed., 17, 1911-1921 (1979)
46. Mechanism of the Asymmetric-Selective Polymerization of (RS)-α-Methylbenzyl Methacrylate Initiated by the Cyclohexylmagnesium Chloride- or Bromide-(–)-Sparteine System
Yoshio Okamoto, Koichi Suzuki, Koji Ohta, and Heimei Yuki, J. Polym. Sci.: Polym. Lett. Ed., 17, 293-298 (1979)
47. Anionic Copolymerization of Optically Active α-Methylbenzyl Methacrylate and Trityl Methacrylate. I. Reactivity of Monomers
Koji Ohta, Yoshio Okamoto, Koichi Hatada, and Heimei Yuki, J. Polym. Sci.: Polym. Chem. Ed., 17, 2917-2928 (1979)
48. Anionic Polymerization and Copolymerization of S-Methyl Thiomethacrylate
Yoshio Okamoto, Motoyuki Toki, and Heimei Yuki, J. Polym. Sci.: Polym. Chem. Ed., 17, 3705-3712 (1979)
49. Poly(β-amino acids). VI. Synthesis and Conformational Properties of Poly[(R)-3-pyrrolidinecarboxylic acid]
Heimei Yuki, Yoshio Okamoto, and Yoshiko Kobayashi, J. Polym. Sci.: Polym. Chem. Ed., 17, 3867-3878 (1979)
50. Optically Active Poly(triphenylmethyl methacrylate) with One-Handed Helical Conformation
Yoshio Okamoto, Koichi Suzuki, Koji Ohta, Koichi Hatada, and Heimei Yuki, J. Am. Chem. Soc., 101, 4763-4765 (1979)
51. Heterotactic Polymers of α-Substituted Acrylic Acid Esters
Koichi Hatada, Hikaru Sugino, Hiroaki Ise, Tatsuki Kitayama, Yoshio Okamoto, and Heimei Yuki, Polym. J., 12, 55-62 (1980)
52. Resolution of Racemic Compounds by Optically Active Poly(triphenylmethyl methacrylate)
Heimei Yuki, Yoshio Okamoto, and Ichiro Okamoto, J. Am. Chem. Soc., 102, 6356-6358 (1980)
53. Asymmetric Polymerization of Triphenylmethyl Methacrylate by Optically Active Anionic Catalysts
Yoshio Okamoto, Koichi Suzuki, and Heimei Yuki, J. Polym. Sci.: Polym. Chem. Ed., 18, 3043-3051 (1980)
54. Asymmetric Polymerization of N,N-Disubstituted Acrylamides
Yoshio Okamoto, Masahiko Adachi, Hajime Shohi, and Heimei Yuki, Polym. J., 13, 175-177 (1981)
55. Chromatographic Resolution of Enantiomers Having Aromatic Group by Optically Active Poly(Triphenylmethyl Methacrylate)
Yoshio Okamoto, Ichiro Okamoto, and Heimei Yuki, Chem. Lett., 1981, 835-838
56. Asymmetric-Selective Polymerization of Racemic Methacrylates with the Cyclohexylmagnesium Bromide-(–)-Sparteine System
Yoshio Okamoto, Kazuhiko Urakawa, and Heimei Yuki, J. Polym. Sci.: Polym. Chem. Ed., 19, 1385-1395 (1981)
57. Optical Resolution of Atropisomeric Poly(Triphenylmethyl Methacrylate)
Yoshio Okamoto, Ichiro Okamoto, and Heimei Yuki, J. Polym. Sci.: Polym. Lett. Ed., 19, 451-455 (1981)
58. Asymmetric-Selective Polymerization of (R,S)-α-Methylbenzyl Acrylate Initiated with Grignard Reagent-(–)-Sparteine and Its Modified Systems
Yoshio Okamoto, Hisataka Gamaike, and Heimei Yuki, Makromol. Chem., 182, 2737-2746 (1981)
59. Anionic Polymerization of N-Methacryloylaziridine
Yoshio Okamoto and Heimei Yuki, J. Polym. Sci.: Polym. Chem. Ed., 19, 2647-2650 (1981)
60. Novel Packing Material for Optical Resolution: (+)-Poly(triphenylmethyl Methacrylate) Coated on Macroporous Silica Gel
Yoshio Okamoto, Ichiro Okamoto, Heimei Yuki, Shizuaki Murata, Ryoji Noyori, and Hidemasa Takaya, J. Am. Chem. Soc., 103, 6971-6973 (1981)
61. Preparation and Structure of (R)-(–)- and (S)-(+)-2,2'-(2,2-Dimethyl-2-silapropane-1,3-diyl)-1,1'-binaphthalene
Ryoji Noyori, N. Sano, Shizuaki Murata, Yoshio Okamoto, Heimei Yuki, and Toshio Ito, Tetrahedron Lett., 23, 2969-2972 (1982)
62. Kinetic Resolution of Racemic α-Methylbenzyl Methacrylate: Asymmetric Selective Polymerization Catalyzed by Grignard Reagent-(–)-Sparteine Derivative Complexes
Yoshio Okamoto, Koichi Suzuki, Tatsuki Kitayama, Heimei Yuki, Hiroyuki Kageyama, Kunio Miki, Nobuo Tanaka, and Nobutami Kasai, J. Am. Chem. Soc., 104, 4618-4624 (1982)
63. The Molecular Structure of Diphenylmethyl Methacrylate
Hiroyuki Kageyama, Kunio Miki, Nobuo Tanaka, Nobutami Kasai, Yoshio Okamoto, Koichi Hatada, and Heimei Yuki, Makromol. Chem., 183, 2863-2870 (1982)
64. Structure of EtMgBr-(–)-α-Isosparteine
Hiroyuki Kageyama, Kunio Miki, Yasushi Kai, Nobutami Kasai, Yoshio Okamoto, and Heimei Yuki, Acta Crystallogr. B, 38, 2264-2266 (1982)
65. Stereoisomerism in Molecular Bevel-Gears. Optical Resolution of the dl Isomers of Bis(2- and 3-chloro-9-triptycyl)methanes and Ethers
Yuzo Kawada, Hiizu Iwamura, Yoshio Okamoto, and Heimei Yuki, Tetrahedron Lett., 24, 791-794 (1983)
66. Copolymerization of 1,1-Diphenylethylene with m- and p-Divinylbenzenes and Grafting Reaction of the Resulting Copolymer with Methacrylates
Koichi Hatada, Yoshio Okamoto, Tatsuki Kitayama, and Shigeru Sasaki, Polym. Bull., 9, 228-235 (1983)
67. The Molecular Structure of Bromo(ethyl)[(–)-sparteine]magnesium(II). A Catalyst for the Asymmetric Selective Polymerization of Racemic Methacrylate
Hiroyuki Kageyama, Kunio Miki, Nobuo Tanaka, Nobutami Kasai, Yoshio Okamoto, and Heimei Yuki, Bull. Chem. Soc. Jpn., 56, 1319-1321 (1983)
68. The Molecular Structures of (t-Butyl)(chloro)[(–)-sparteine]magnesium(II) and Dichloro[(–)-sparteine]magnesium(II)
Hiroyuki Kageyama, Kunio Miki, Yasushi Kai, Nobutami Kasai, Yoshio Okamoto, and Heimei Yuki, Bull. Chem. Soc. Jpn., 56, 2411-2414 (1983)
69. Complete Chromatographic Resolution of Tris(acetylacetonato)-cobalt(III) and Chromium(III) on an Optically Active Poly(triphenylmethyl methacrylate) Column
Yoshio Okamoto, Shiro Honda, Eiji Yashima, and Heimei Yuki, Chem. Lett., 1983, 1221-1224
70. Facile Syntheses of (+)- and (–)-Poly(triphenylmethyl methacrylate)s and Their Macromers
Yoshio Okamoto, Hajime Shohi, and Heimei Yuki, J. Polym. Sci.: Polym. Lett. Ed., 21, 601-607 (1983)
71. Synthesis and Chiral Recognition of Novel Crown Ethers Incorporating Helicene Chiral Centres
Masao Nakazaki, Koji Yamamoto, Tetsumi Ikeda, Tomohito Kitsuki, and Yoshio Okamoto, J. Chem. Soc., Chem. Commun., 1983, 787-788
72. Correlated Internal Rotation in Bis(2,6-dichloro-9-triptycyl)methane. To What Extent Can Phase Isomers be Separated and Identified?
Yuzo Kawada, Yoshio Okamoto, and Hiizu Iwamura, Tetrahedron Lett., 24, 5359-5362 (1983)
73. Stereospecific and Asymmetric Polymerization of Diphenylpyridylmethyl Methacrylates
Yoshio Okamoto, Motoshi Ishikura, Koichi Hatada, and Heimei Yuki, Polym. J., 15, 851-853 (1983)
74. Chromatographic Resolution of Perchlorotriphenylamine on (+)-Poly(triphenylmethyl methacrylate)
Yoshio Okamoto, Eiji Yashima, Koichi Hatada, and Kurt Mislow, J. Org. Chem., 49, 557-558 (1984)
75. Useful Chiral Packing Materials for High-Performance Liquid Chromatographic Resolution. Cellulose Triacetate and Tribenzoate Coated on Macroporous Silica Gel
Yoshio Okamoto, Mitsunobu Kawashima, Koji Yamamoto, and Koichi Hatada, Chem. Lett., 1984, 739-742
76. Circular Dichroism Induced on Arylmethyl Carbanions
Yoshio Okamoto, Takahiro Takeda, and Koichi Hatada, Chem. Lett., 1984, 757-760
77. The Molecular Structures of (+)-6-Benzylsparteine, (Ethyl)(bromo)[(+)-6-benzylsparteine] Magnesium(II), and Dibromo[(+)-6-benzylsparteine]magnesium(II). Structure and Reactivity of the Grignard Reagent-(–)-Sparteine Derivative Complexes for Asymmetric Selective Polymerization of Racemic Methacrylates
Hiroyuki Kageyama, Kunio Miki, Yasushi Kai, Nobutami Kasai, Yoshio Okamoto, and Heimei Yuki, Bull. Chem. Soc. Jpn., 57, 1189-1196 (1984)
78. Chromatographic Resolution of Racemic Compounds Containing Phosphorus or Sulfur Atom as Chiral Center
Yoshio Okamoto, Shiro Honda, Koichi Hatada, Ichiro Okamoto, Yuzo Toga, and Shiro Kobayashi, Bull. Chem. Soc. Jpn., 57, 1681-1682 (1984)
79. Resolution, Absolute Configuration, and Photoracemization of Chiral Troponoid Acetals, Cyclohepta[2,1-b:2,3-b']di[1,4]benzoxazines
Yoshio Okamoto, Shiro Honda, Heimei Yuki, Hikaru Nakamura, Yoichi Iitaka, and Tetsuo Nozoe, Chem. Lett., 1984, 1149-1152
80. The Molecular Structures of (RS)-1,2-Diphenylethyl Methacrylate and (RS)-α-tert-Butylbenzyl Methacrylate
Hiroyuki Kageyama, Kunio Miki, Nobutami Kasai, Yoshio Okamoto, Eiji Yashima, Koichi Hatada, and Heimei Yuki, Makromol. Chem., 185, 913-932 (1984)
81. The Molecular Structures of Methacrylates with Bulky Ester Substituents, (RS)-1,2,2,2-Tetraphenylethyl Methacrylate and (1S,2R)-(+)-1-Benzyl-3-dimethylamino-2-methyl-1-phenylpropyl Methacrylate
Hiroyuki Kageyama, Yoshihiko Yanagisawa, Nobutami Kasai, Yoshio Okamoto, Eiji Yashima, Takahiro Takeda, and Koichi Hatada, Makromol. Chem., 185, 933-955 (1984)
82. Asymmetric Selective Polymerization of Racemic 1,2-Diphenylethyl Methacrylate with the Ethylmagnesium Bromide-(–)-Sparteine Complex
Yoshio Okamoto, Eiji Yashima, Koichi Hatada, Heimei Yuki, Hiroyuki Kageyama, Kunio Miki, and Nobutami Kasai, J. Polym. Sci.: Polym. Chem. Ed., 22, 1831-1837 (1984)
83. Chromatographic Resolution of Tris(acetylacetonato)aluminium(III) on an Optically Active Poly(triphenylmethyl Methacrylate) Column
Yoshio Okamoto, Eiji Yashima, and Koichi Hatada, J. Chem. Soc., Chem. Commun., 1984, 1051-1052
84. Useful Chiral Packing Materials for High-Performance Liquid Chromatographic Resolution of Enantiomers: Phenylcarbamates of Polysaccharides Coated on Silica Gel
Yoshio Okamoto, Mitsunobu Kawashima, and Koichi Hatada, J. Am. Chem. Soc., 106, 5357-5359 (1984)
85. Synthesis and Chiral Recognition of Optically Active Crown Ethers Incorporating Biphenanthryl Moiety as the Chiral Centre
Koji Yamamoto, Hitoshi Fukushima, Yoshio Okamoto, Koichi Hatada, and Masao Nakazaki, J. Chem. Soc., Chem. Commun., 1984, 1111-1112
86. Preparation of Optically Active 1,6,12c,12d-Tetramethyl-12c,12d-dihydrocoronene with Known Absolute Configuration
Koji Yamamoto, Tatsuo Ueda, Hiriya Yumioka, Yoshio Okamoto, and Toshikatsu Yoshida, Chem. Lett., 1984, 1977-1978
87. Polymers of α-Substituted Benzyl Methacrylates and Aliphatic Aldehydes as New Types of Electron-Beam Resists
Koichi Hatada, Tatsuki Kitayama, Yoshio Okamoto, Heimei Yuki, Hiroaki Aritome, Susumu Namba, K.Nate, T. Inoue, and H. Yokono, Materials for Microlithography: Radiation-Sensitive Polymers, L. F. Thompson, C. G. Wilson, J. M. J. Fréchet, Editors, ACS Symposium Series, No. 266, 399-421 (1984)
88. The Molecular Structures of 1,1-Diphenylethyl Methacrylate and Triphenylmethy Methacrylate
Hiroyuki Kageyama, Yoko Hayashi, Shigeharu Harada, Yasushi Kai, Nobutami Kasai, Yoshio Okamoto, and Koichi Hatada, Makromol. Chem., 186, 203-214 (1985)
89. Preparation of Highly Isotactic Poly(methyl methacrylate) of Low Polydispersity
Koichi Hatada, Koichi Ute, Katsuji Tanaka, Tatsuki Kitayama, and Yoshio Okamoto, Polym. J., 17, 977-980 (1985)
90. Liquid Chromatographic Optical Resolution of 2,2'-Spirobibenz[e]indan Derivatives and Absolute Stereochemistry as Determined by the C.D. Exciton Chirality Method
Nobuyuki Harada, Jun Iwabuchi, Yoichi Yokota, Hisashi Uda, Yoshio Okamoto, Heimei Yuki, and Yuzo Kawada, J. Chem. Soc. Perkin Trans. I, 1985, 1845-1848
91. Synthesis and Chiral Recognition of Optically Active Crown Ethers Incorporating a 4,4'-Biphenanthryl Moiety as the Chiral Centre
Koji Yamamoto, Koji Noda, and Yoshio Okamoto, J. Chem. Soc., Chem. Commun., 1985, 1065-1066
92. Resolution of Alcohols as Esters by HPLC on (+)-Poly(triphenylmethyl methacrylate)
Yoshio Okamoto, Shiro Honda, Koichi Hatada, and Heimei Yuki, Bull. Chem. Soc. Jpn., 58, 3058-3054 (1985)
93. Synthesis and Chiral Recognition of Optically Active Crown Ethers Incorporating a trans Doubly-bridged Ethylene Framework
Koji Yamamoto, Koji Noda, and Yoshio Okamoto, J. Chem. Soc., Chem. Commun., 1985, 1421-1422
94. High-Performance Liquid Chromatographic Resolution of Enantiomers on Optically Active Poly(Triphenylmethyl Methacrylate)
Yoshio Okamoto, Shiro Honda, Koichi Hatada, and Heimei Yuki, J. Chromatogr., 350, 127-134 (1985)
95. Optical Resolution of 3a,4,7,7a-Tetrahydro-4,7-methano-1H-indene Derivatives
Toshio Ito, Yoshio Okamoto, and Takeshi Matsumoto, Bull. Chem. Soc. Jpn., 58, 3631-3632 (1985)
96. Modellverbindungen für Elektronentransfer in Raumlich Geordneten Systemen: Chirale und Achirale Triptycenazulenchinone
Jörg Daub, Lothar Jakob, Josef Salbeck, and Yoshio Okamoto, Chimia, 39, 393-395 (1985)
97. Syntheses and Applications of Graft Copolymers from Poly(1,1-diphenylethylene-co-divinylbenzene)s
Koichi Hatada, Tatsuki Kitayama, Shigeru Sasaki, Yoshio Okamoto, Eiji Masuda, Yoichi Kobayashi, and Akihisa Nakajima, Ind. Eng. Chem., 25, 141-148 (1986)
98. Synthesis and Chiral Recognition of Optically Active Crown Ethers Incorporating a 9,9'-Biphenanthryl Moiety as the Chiral Center
Koji Yamamoto, Tomohito Kitsuki, and Yoshio Okamoto, Bull. Chem. Soc. Jpn., 59, 1269-1270 (1986)
99. Bishydrocotarnines-Stereochemical Aspects
Yoshio Okamoto, Doris Dirnberger, Thomas Burgemeister, Gerd Dannhardt, and Wolfgang Wiegrebe, Arch. Pharm. (Weinheim), 319, 1122-1129 (1986)
100. Optically Active Poly(diphenyl-2-pyridylmethyl methacrylate): Asymmetric Synthesis, Stability of Helix, and Chiral Recognition Ability
Yoshio Okamoto, Haruhiko Mohri, Motoshi Ishikura, Koichi Hatada, and Heimei Yuki, J. Polym. Sci.: Polym. Synposium, 74, 125-139 (1986)
101. Resolution of Enantiomers by HPLC on Cellulose trans- and cis-Tris(4-phenylazophenyl-carbamate)
Yoshio Okamoto, Hideaki Sakamoto, Koichi Hatada, and Msahiro Irie, Chem. Lett., 1986, 983-986
102. Optical Resolution of β-Blockers by HPLC on Cellulose Triphenylcarbamate Derivatives
Yoshio Okamoto, Mitsunobu Kawashima, Ryo Aburatani, Koichi Hatada, Toshimi Nishiyama, and Motokazu Masuda, Chem. Lett., 1986, 1237-1240
103. Synthesis of Syndiotactic Poly(methyl methacrylate)s with Grignard Reagents (RMgBr)
Zun-Kui Cao, Koichi Ute, Tatsuki Kitayama, Yoshio Okamoto, and Koichi Hatada, J. Koubunshi Ronbunshu, 43, 435-441 (1986) (Japanese) (1986)
104. Controlled Chiral Recognition of Cellulose Triphenylcarbamate Derivatives Supported on Silica Gel
Yoshio Okamoto, Mitsunobu Kawashima, and Koichi Hatada, J. Chromatogr., 363, 173-186 (1986)
105. Resolution of 4-Hydroxy-2-cyclopentenone Derivatives by HPLC on Cellulose Triphenylcarbamate Derivatives
Yoshio Okamoto, Ryo Aburatani, Mitsunobu Kawashima, Koichi Hatada, and Noriaki Okamura, Chem. Lett., 1986, 1767-1770
106. The Crystal and Molecular Structure of Diphenyl-2-pyridylmethyl Methacrylate
Hiroyuki Kageyama, Kunio Miki, Nobutami Kasai, Haruhiko Mohri, Yoshio Okamoto, and Koichi Hatada, Bull. Chem. Soc. Jpn., 59, 2707-2710 (1986)
107. The First Separation of an Optically Active 1,3-Diphospha-allene of Axial Dissymmetry
Masaaki Yoshifuji, Kozo Toyota, Takashi Niitsu, Naoki Inamoto, Yoshio Okamoto, and Ryo Aburatani, J. Chem. Soc., Chem. Commun., 1986, 1550-1551
108. Syntheses of Syndiotactic Poly(methyl Methacrylate)s with Bulky Alkyllithiums
Zun-Kui Cao, Yoshio Okamoto, and Koichi Hatada, Koubunshi Ronbunshu, 43, 857-861 (1986) (Japanese)
109. Novel Chiral Porphyrins with C2 Symmetry
Hisanobu Ogoshi, Kazumi
Saita, Ken-ichi Sakurai, Takamichi Watanabe, Hiroo Toi, Yasuhiro Aoyama, and
Yoshio Okamoto, Tetrahedron Lett., 27, 6365-6368 (1986)
110. Living and Highly Isotactic Polymerization of Methyl Methacrylate by t-C4H9MgBr in Toluene
Koichi Hatada, Koichi Ute, Katsuji Tanaka, Yoshio Okamoto, and Tatsuki Kitayama, Polym. J., 18, 1037-1047 (1986)
111. Synthesis and Chiral Recognition of an Optically Active Bis-crown Ether Incorporating a Diphenanthrylnaphthalene Moiety as the Chiral Centre
Koji Yamamoto, Hiroya Yumioka, Yoshio Okamoto, and Hiroaki Chikamatsu, J. Chem. Soc., Chem. Commun., 1987, 168-169
112. Preparation of Optically Active Poly(triphenylmethyl methacrylate) Chemically Bonded to Silica Gel and Its Application for Optical Resolution by HPLC
Yoshio Okamoto, Haruhiko Mohri, Masaki Nakamura, and Kiochi Hatada, Kagaku Kaishi., 435-440 (1987) (Japanese)
113. Chromatographic Chiral Resolution XIV. Cellulose Tribenzoate Derivatives as Chiral Stationary Phases for High-Performance Liquid Chromatography
Yoshio Okamoto, Ryo Aburatani, and Koichi Hatada, J. Chromatogr., 389, 95-102 (1987)
114. Absolute Stereostructure of Novel Chiral Troponoid Spiro Compounds as Determined by Theoretical Calculation of CD Spectra
Nobuyuki Harada, Hisashi Uda, Tetsuo Nozoe, Yoshio Okamoto, Hidetsugu Wakabayashi, and Sumio Ishikawa, J. Am. Chem. Soc., 109, 1661-1665 (1987)
115. Mechanism of Asymmetric Polymerization of Triphenylmethyl Methacrylate. Separation and Optical Resolution of Oligomers
Yoshio Okamoto, Eiji Yashima, Tamaki Nakano, and Koichi Hatada, Chem. Lett., 1987, 759-762
116. Asymmetric and Enantiomer-Selective Polymerization of Phenyl-2-pyridyl-o-tolylmethyl Methacrylate
Eiji Yashima, Yoshio Okamoto, and Koichi Hatada, Polym. J., 19, 897-904 (1987)
117. Asymmetric Polymerization of Optically Active Phenyl-2-Pyridyl-o-Tolylmethyl Methacrylate and Remarkable Conformational Change of the Polymer
Yoshio Okamoto, Eiji Yashima, and Koichi Hatada, J. Polym. Sci. Part C: Polym. Lett., 25, 297-301 (1987)
118. Preparation of a Novel Optically Active 8,8'-Bi-isoquinolyl and its Co-ordination as a Bridging Ligand in Rhodium(I) Complexes
Koji Yamamoto, Kazuaki Watanabe, Hiroaki Chikamatsu, Yoshio Okamoto, and Toshikatsu Yoshida,
J. Chem. Soc., Chem. Commun., 1987, 807-808
119. Useful Chiral Stationary Phases for HPLC. Amylose Tris(3,5-dimethylphenylcarbamate) and Tris(3,5-dichlorophenylcarbamate) Supported on Silica Gel
Yoshio Okamoto, Ryo Aburatani, Tohru Fukumoto, and Koichi Hatada, Chem. Lett., 1987, 1857-1860
120. Chiral Stationary Phases for HPLC: Cellulose Tris(3,5-dimethylphenylcarbamate) and Tris(3,5-dichlorophenylcarbamate) Chemically Bonded to Silica Gel
Yoshio Okamoto, Ryo Aburatani, Shin-ichi Miura, and Koichi Hatada, J. Liq. Chromatogr., 10(8&9), 1613-1628 (1987)
121. Synthesis, Methanolysis, and Asymmetric Polymerization of meta- and para-Substituted Triphenylmethyl Methacrylates
Yoshio Okamoto, Eiji Yashima, Motoshi Ishikura, and Koichi Hatada, Polym. J., 19, 1183-1190 (1987)
122. Differential Induction of Cytochrome P-450 by the Enantiomers of trans-Stilbene Oxide
Petra Rauch, Michael Puttmann, Franz Oesch, Yoshio Okamoto, and Larry W. Robertson, Biochem. Pharmacology, 36, 4355-4359 (1987)
123. Asymmetric Synthesis of β-Lactams Using a Pummerer Reaction
Takushi Kaneko, Yoshio Okamoto, and Koichi Hatada, J. Chem. Soc., Chem. Commun., 1987, 1512
124. Preparation and Optical Resolution of Novel 5,10-Diaryloctaethylporphyrins with C2 Symmetry
Yasuhiro Aoyama, Kazumi Saita, Hiroo Toi, Hisanobu Ogoshi, and Yoshio Okamoto, Tetrahedron Lett., 28, 4853-4856 (1987)
125. Optical Resolution of Alcohols as Carbamates by HPLC on Cellulose Tris(phenylcarbamate) Derivatives
Yoshio Okamoto, Z.-K. Cao, Ryo Aburatani, and Koichi Hatada, Bull. Chem. Soc. Jpn., 60, 3999-4003 (1987)
126. The Chiral Recognition of Optically Active Poly(triphenylmethyl methacrylate) Derivatives as Stationary Phases for HPLC
Yoshio Okamoto, Eiji Yashima, Motto Ishikura, and Koichi Hatada, Bull. Chem. Soc. Jpn., 61, 255-259 (1988)
127. Enantiomer-Selective Polymerization of Racemic Phenyl-2-pyridyl-o-tolylmethyl Methacrylate Controlled by a Rigid Helix
Eiji Yashima, Yoshio Okamoto,
and Koichi Hatada, Macromolecules, 21, 854-855 (1988)
128. Structure, Resolution, and Racemization of Decakis(dichloromethyl)biphenyl
Silvio E. Biali, Bart Kahr, Yoshio Okamoto, Ryo Aburatani, and Kurt Mislow, J. Am. Chem. Soc., 110, 1917-1922 (1988)
129. Asymmetric Polymerization of Diphenyl-2-pyridylmethyl Methacrylate Leading to Optically Active Polymer with High One-Handed Helicity
Yoshio Okamoto, Haruhiko Mohri, and Koichi Hatada, Polym. Bull., 20, 25-30 (1988)
130. Conformational Analysis of Methacrylates by IR and 1H NMR Spectroscopies
Eiji Yashima, Yoshio Okamoto, Koichi Hatada, Hiroyuki Kageyama, and Nobutami Kasai, Bull. Chem. Soc. Jpn., 61, 2071-2077 (1988)
131. Synthesis and Molecular Structure of [7]Circulene
Koji Yamamoto, Tadashi Harada, Yoshio Okamoto, Hiroaki Chikamatsu, Masao Nakazaki, Yasushi Kai, Takuo Nakao, Mitsuya Tanaka, Shigeharu Harada, and Nobutami Kasai, J. Am. Chem. Soc., 110, 3578-3584 (1988)
132. Direct Optical Resolution of Carboxylic Acids by Chiral HPLC on Tris(3,5-dimethylphenylcarbamate)s of Cellulose and Amylose
Yoshio Okamoto, Ryo Aburatani, Yuriko Kaida, and Koichi Hatada, Chem. Lett., 1988, 1125-1128
133. Molecular Asymmetry of an N-Alkylporphyrin with Enantiotopic Faces. Resolution and Spectroscopic Characterizations of Optical Antipodes of N-Methyletioporphyrin I
Hideo Kubo, Takuzo Aida, Shohei Inoue, and Yoshio Okamoto, J. Chem. Soc., Chem. Commun., 1988, 1015-1017
134. Revision of Stereochemical Assignments of Dimethyl 2,3-Diphenyltartrates
S. Peter Pappas, Betty C. Passas, Yoshio Okamoto, and Hideaki Sakamoto, J. Org. Chem., 53, 4404 (1988)
135. Direct Optical Resolution of Abscisic Acid by High-performance Liquid Chromatography on Cellulose Tris(3,5-dimethylphenylcarbamate)
Yoshio Okamoto, Ryo Aburatani, and Koichi Hatada, J. Chromatogr., 448, 454-455 (1988)
136. Optical Resolution of Racemic Drugs by Chiral HPLC on Cellulose and Amylose Tris(phenylcarbamate) Derivatives
Yoshio Okamoto, Ryo Aburatani, Kazuhiro Hatano, and Koichi Hatada, J. Liq. Chromatogr., 11, 2147-2163 (1988)
137. On-Line GPC/NMR Experiments Using the Isotactic Poly(methyl methacrylate) with Well-Defined Chemical Structure
Koichi Hatada, Koichi Ute, Yoshio Okamoto, Mamoru Imanari, and Naoyuki Fujii, Polym. Bull., 20, 317-321 (1988)
138. Highly Helix-Sense-Selective Polymerization of Diphenyl-2-pyridylmethyl Methacrylate
Yoshio Okamoto, Haruhiko Mohri, and Koichi Hatada, Chem. Lett., 1988, 1879-1882
139. Molecular Recognition in the Ternary Systems of a Trifunctional Chiral Metalloporphyrin, Amino Esters, and HPLC Adsorbent
Yasuhiro Aoyama, Tsutomu Uzawa, Kazumi Saita, Yasutaka Tanaka, Hiroo Toi, Hisanobu Ogoshi, and Yoshio Okamoto, Tetrahedron Lett., 29, 5271-5274 (1988)
140. NMR Spin-Lattice Relaxation Times of Poly(α-substituted acrylate)s in Solution
Koichi Hatada, Tatsuki Kitayama, Yoshio Terawaki, Koji Ohta, Yoshio Okamoto, Heimei Yuki, and Robert W. Lenz, Bull. Inst. Chem. Res. Kyoto Univ., 66, 115-127 (1988)
141. Haloaldehyde Polymers XXXV. 1H, 19F, and 13C NMR Spectra and Stereochemistry of Bornyl Esters of Fluorochlorobromoacetic Acid
Koichi Hatada, Koichi Ute, Tamaki Nakano, Yoshio Okamoto, T. R. Doyle, and O. Vogl, Polym. J., 21, 171-177 (1989)
142. Optical Activity of Isotactic Oligomers of Methyl Methacrylate
Yoshio Okamoto, Tamaki Nakano, and Koichi Hatada, Polym. J., 21, 199-201 (1989)
143. Tris(4-t-butylphenylcarbamate)s of Cellulose and Amylose as Useful Chiral Stationary Phases for Chromatographic Optical Resolution
Yoshio Okamoto, Kazuhiro Hatano, Ryo Aburatani, and Koichi Hatada, Chem. Lett., 1989, 715-718
144. Chromatographic Optical Resolution by Optically Active Poly(diphenyl-2-pyridylmethyl methacrylate) with a Highly One-Handed Helical Structure
Yoshio Okamoto, Haruhiko Mohri, and Koichi Hatada, Polym. J., 21, 439-445 (1989)
145. Asymmetric Polymerization of N,N-Disubstituted Acrylamides
Yoshio Okamoto, Hiromi Hayashida, and Koichi Hatada, Polym. J., 21, 543-549 (1989)
146. Optical Resolution of Amino Acid Derivatives by HPLC on Tris(phenylcarbamate)s of Cellulose and Amylose
Yoshio Okamoto, Yuriko Kaida, Ryo Aburatani, and Koichi Hatada, J. Chromatogr., 477, 367-376 (1989)
147. Stereomutation of Optically Active Poly(diphenyl-2-pyridylmethyl methacrylate)
Yoshio Okamoto, Haruhiko Mohri, Tamaki Nakano, and Koichi Hatada, J. Am. Chem. Soc., 111, 5952-5954 (1989)
148. Helix-Sense-Selective Polymerization of 2-(6-Methylpyridyl)diphenylmethyl Methacrylate
Haruhiko Mohri, Yoshio Okamoto, and Koichi Hatada, Polym. J., 21, 719-724 (1989)
149. Optical Resolution of β-Lactams by Chiral HPLC on Tris(phenylcarbamate)s of Cellulose and Amylose
Yoshio Okamoto, Toshiaki Senoh, Harumi Nakane, and Koichi Hatada, Chirality, 1, 216-222 (1989)
150. Direct Chromatographic Separation of 2-Arylpropionic Acid Enantiomers Using Tris(3,5-dimethylphenylcarbamate)s of Cellulose and Amylose as Chiral Stationary Phases
Yoshio Okamoto, Ryo Aburatani, Yuriko Kaida, Koichi Hatada, Nobuo Inotsume, and Masahiro Nakano, Chirality, 1, 239-242 (1989)
151. High-Performance Liquid Chromatography Using Stereoregular Poly(methyl methacrylate)s as Stationary Phases
Yoshio Okamoto, Masanori Yanagida, and Koichi Hatada, Polym. J., 21, 795-801 (1989)
152. Crystal Structure of Methyl Methacrylate Dimer. Revised Meso/Racemo Assignment for the Dimer
Tamaki Nakano, Koichi Ute, Yoshio Okamoto, Yoshiki Matsuura, and Koichi Hatada, Polym. J., 21, 935-939 (1989)
153. Synthesis of Narrow Distribution Polystyrene in RLi-Ligand Complex Systems
Junkul Cao, Yoshio Okamoto, Shiro Honda, and Koichi Hatada, Chem. J. Chinese Univ., 10, 1246-1250 (1989)
154. Chromatographic Optical Resolution on 3,5-Disubstituted Phenylcarbamates of Cellulose and Amylose
Yoshio Okamoto, Ryo Aburatani, and Koichi Hatada, Bull. Chem. Soc. Jpn., 63, 955-957 (1990)
155. Optical Resolution of [2.2]Paracyclophanes by High-Performance Liquid Chromatography on Tris(3,5-dimethylphenylcarbamates) of Cellulose and Amylose
Henning Hopf, Walter Grahn, David G. Barrett, Anton Gerdes, Jörg Hilmer, Joachim Hucher, Yoshio Okamoto, and Yuriko Kaida, Chem. Ber., 123, 841-845 (1990)
156. Synthesis and Chiral Recognition of Optically Active Crown Ethers Incorporating a Helicene Moiety as the Chiral Centre
Koji Yamamoto, Tetsuo Ikeda, Tomihito Kitsuki, Yoshio Okamoto, Hiroaki Chikamatsu, and Masao Nakazaki, J. Chem. Soc. Perkin Trans. I, 1990, 271-276
157. Separation of an Optically Active Phosphaallene of Pseudo Axial Dissymmetry
Masaaki Yoshifuji, Kozo Toyota, Yoshio Okamoto, and Toshikage Asakura, Tetrahedron Lett., 31, 2311-2314 (1990)
158. Stereochemical Consequence of a Parity Restriction on Dynamic Gearing in Tris(9-triptycyl)germanium Chloride and Tris(9-triptycyl)cyclopropenium Perchlorate
Jeffrey M. Chance, James H. Geiger, Yoshio Okamoto, Ryo Aburatani, and Kurt Mislow, J. Am. Chem. Soc., 112, 3540-3547 (1990)
159. Tris(1-phenylethylcarbamate)s of Cellulose and Amylose as Useful Chiral Stationary Phases for Chromatographic Optical Resolution
Yoshio Okamoto, Yuriko Kaida, Hiromi Hayashida, and Koichi Hatada, Chem. Lett., 1990, 909-912
160. Optical Resolution of Dihydropyridine Enantiomers by High-Performance Liquid Chromatography Using Phenylcarbamates of Polysaccharides as a Chiral Stationary Phase
Yoshio Okamoto, Ryo Aburatani, Koichi Hatada, Mikiko Honda, Nobuo Inotsume, and Masahiro Nakano, J. Chromatogr., 513, 375-378 (1990)
161. Optical Resolving Ability of 3,5-Dimethylphenylcarbamates of Oligosaccharides and Cyclodextrins
Ryo Aburatani, Yoshio Okamoto, and Koichi Hatada, Bull. Chem. Soc. Jpn., 63, 3606-3610 (1990)
162. Polysaccharide Derivatives as Chiral Stationary Phases in HPLC
Yoshio Okamoto, and Yuriko
Kaida, J. High Resolution Chromatogr.,
13, 708-712 (1990)
163. Asymmetric Polymerization of N-Phenylmaleimide
Yoshio Okamoto, Tamaki Nakano, Hiroyuki Kobayashi, and Koichi Hatada, Polym. Bull., 25, 5-8 (1991)
164. Synthesis and Reversible Stereomutation of Optically Active Poly[(S)-diphenyl(1-methylpyrrolidin-2-yl)methyl methacrylate]
Yoshio Okamoto, Tamaki Nakano, Etsuko Ono, and Koichi Hatada, Chem. Lett., 1991, 525-528
165. Asymmetric Polymerization of Optically Active Phenyl-2-pyridyl-m-tolylmethyl Methacrylate and Stereomutation of the Polymer
Yoshio Okamoto, Tamaki Nakano, Toshikage Asakura, Haruhiko Mohri, and Koichi Hatada, J. Polym. Sci. Part A: Polym. Chem., 29, 287-289 (1991)
166. Remarkable Influence of Tacticity on Liquid Crystallinity of Polymethacrylates with Biphenyl Moiety as Mesogenic Group
Yoshio Okamoto, Toshikage Asakura, and Koichi Hatada, Chem. Lett., 1991, 1105-1108
167. Nitro- und Allyloxy-Substituierte Helicale [2.2]Metacyclophane: Synthese, Circular Dichroismus und Röntgen-Kristallstrukturanalysen
Peter Knops, Paul -M. Windscheif, Fritz Vögtle, Albrecht Roloff, Martin Jansen, Martin Nieger, Edgar Niecke, and Yoshio Okamoto, Chem. Ber., 124, 1585-1590 (1991)
168. Asymmetric Polymerization of Cyclopropyldiphenylmethyl and Cyclohexyldiphenylmethyl Methacrylates and Stereomutation of the Polymers
Yoshio Okamoto, Tamaki Nakano, Tetsuya Fukuoka, and Koichi Hatada, Polym. Bull., 26, 259-264 (1991)
169. Chromatographic Optical Resolution of Enantiomers on Polyamides Containing 1,2-Disubstituted Cyclohexane Moiety as a Chiral Residue
Yoshio Okamoto, Yoshikazu Nagamura, Toru Fukumoto, and Koichi Hatada, Polym. J., 23, 1197-1207 (1991)
170. Haloaldehyde Polymers LIII. Optical Resolution of Purely Isotactic Oligomers of Chloral: Optical Activity of the Chloral Oligomers Assuming One-Handed Helical Conformation in Solution
Koichi Ute, Ken-ichi Oka, Yoshio Okamoto, Koichi Hatada, Fu Xi, and Otto Vogl, Polym. J., 23, 1419-1424 (1991)
171. Helix-Sense-Selective Polymerization of Diphenyl-2-Pyridyl-methyl Methacrylate with Chiral Anionic Initiators
Yoshio Okamoto, Haruhiko Mohri, Tamaki Nakano, and Koichi Hatada, Chirality, 3, 277-284 (1991)
172. Efficient Optical Resolution of 4-Hydroxy-2-cyclopentenone Derivatives by HPLC on 1-Phenylethylcarbamates of Cellulose and Amylose
Yuriko Kaida and Yoshio Okamoto, Chem. Lett., 1992, 85-88
173. Asymmetric Polymerization of Triphenylmethyl Methacrylate Leading to a One-Handed Helical Polymer: Mechanism of Polymerization
Tamaki Nakano, Yoshio Okamoto, and Koichi Hatada, J. Am. Chem. Soc., 114, 1318-1329 (1992)
174. Optical Resolution of β-Lactams on 1-Phenylethylcarbamates of Cellulose and Amylose
Yuriko Kaida and Yoshio Okamoto, Chirality, 4, 122-124 (1992)
175. Optical Resolution by Supercritical Fluid Chromatography Using Polysaccharide Derivatives as Chiral Stationary Phases
Yuriko Kaida and Yoshio Okamoto, Bull. Chem. Soc. Jpn., 65, 2286-228 (1992)
176. Enantiomer Separation with Cellulose Tris(3,5-dimethylphenylcarbamate) Membrane
Eiji Yashima, Junko Noguchi, and Yoshio Okamoto, Chem. Lett., 1992, 1959-1962
177. On Some Bulk Properties of Poly(macromonomer)s
Yasuhisa Tsukahara, Kiyoharu Tsutsumi, and Yoshio Okamoto, Makromol. Chem. Rapid Commun., 13, 409-413 (1992)
178. An Unexpected Chiral Spiro Tetramer Offers Mechanistic Insight into an Improved Sodium Cyanide Initiated Polymerization of n-Hexyl Isocyanate in Toluene
Yoshio Okamoto, Yoshikazu Nagamura, Koichi Hatada, Chetan Khatri, and Mark M. Green, Macromolecules, 25, 5536-5538 (1992)
179. Resolution and Enantiomerization Barrier of Tetramesitylethylene
Erez Gur, Yuriko Kaida, Yoshio Okamoto, Silvio E. Biali, and Zvi Rappoport, J. Org. Chem., 57, 3689-3693 (1992)
180. Preparation and Chromatographic Evaluation of 3,5-Dimethylphenyl Carbamoylated β-cyclodextrin Stationary Phases for Normal-phase High-Performance Liquid Chromatographic Separation of Enantiomers
Tihamer Hargitai, Yuriko Kaida, and Yoshio Okamoto, J. Chromatogr., 628, 11-22 (1993)
181. The Separation of Optically Active Copper (I) Catenates
Yuriko Kaida, Yoshio Okamoto, Jean -C. Chambron, Dennis K. Mitchell, and Jean -P. Sauvage, Tetrahedron Lett., 34, 1019-1022 (1993)
182. Stereospecific Radical Polymerization of 1-Phenyldibenzosuberyl Methacrylate Affording a Highly Isotactic Polymer
Tamaki Nakano, Masatoshi Mori, and Yoshio Okamoto, Macromolecules, 26, 867-868 (1993)
183. Disposition of Enantiomers of Sulpiride in Humans and Rats
Ayako Kamizono, Nobuo Inotsume, Shoji Fukushima, Masahiro Nakano, and Yoshio Okamoto, Biopham. & Drug Disposition, 14, 475-481 (1993)
184. Tris(chloro- and methyl-disubstituted phenylcarbamate)s of Cellulose as Chiral Stationary Phases for Chromatographic Enantioseparation
Bezhan Chankvetadze, Eiji Yashima, and Yoshio Okamoto, Chem. Lett., 1993, 617-620
185. Asymmetric Polymerization of Isocyanates with Optically Active Anionic Initiators
Yoshio Okamoto, Masashi Matsuda, Tamaki Nakano, and Eiji Yashima, Polym. J., 25, 391-396 (1993)
186. Evaluation of 3,5-Dimethylphenyl Carbamoylated α-, β-, and γ-Cyclodextrins as Chiral Stationary Phases for HPLC
Tihamer Hargitai and Yoshio Okamoto, J. Liq. Chromatogr., 16, 843-858 (1993)
187. Optical Resolution by High-performance Liquid Chromatography on Benzylcarbamates of Cellulose and Amylose
Yuriko Kaida and Yoshio Okamoto, J. Chromatogr., 641, 267-278 (1993)
188. Optical Resolution on Regioselectively Carbamoylated Cellulose and Amylose with 3,5-Dimethylphenyl and 3,5-Dichlorophenyl Isocyanates
Yuriko Kaida and Yoshio Okamoto, Bull. Chem. Soc. Jpn., 66, 2225-2232 (1993)
189. Polyisocyanates and the Interplay of Experiment and Theory in the Formation of Lyotropic Cholesteric States
Takahiro Sato, Yoshihiro Sato, Yoshimi Umemura, Akio Teramoto, Yoshikazu Nagamura, Jürgen Wagner, Dexi Weng, Yoshio Okamoto, Koichi Hatada, and Mark M. Green, Macromolecules, 26, 4551-4559 (1993)
190. Helix-Sense-Selective Polymerization of Phenyl[bis(2-pyridyl)]methyl Methacrylate and Chiral Recognition Ability of the Polymer
Changyu
Ren, Chuanfu Chen, Fu Xi, Tamaki Nakano, and Yoshio Okamoto, J. Polym. Sci.
Part A: Polym. Chem., 31, 2721-2728 (1993)
191. Synthesis and Liquid Crystallinity of Stereoregular Polymethacrylates with Mesogenic Ester Groups
Tamaki Nakano, Tsuyoshi Hasegawa, and Yoshio Okamoto, Macromolecules, 26, 5494-5502 (1993)
192. Resolution of Enantiomers by HPLC on Tris(4-alkoxyphenylcarbamate)s of Cellulose and Amylose
Yoshio Okamoto, Toshiaki Ohashi, Yuriko Kaida, and Eiji Yashima, Chirality, 5, 616-621 (1993)
193. Inhibitory Effects of Procainamide and Probenecid on Renal Excretion of Sultopride Enantiomers in Rats
Ayako Kamizono, Nobuo Inotsume, Shoji Fukushima, Masahiro Nakano, and Yoshio Okamoto, J. Pharmaceut. Sci., 82, 1259-1261 (1993)
194. Study on the Solvent Effect on Radical Polymerization of Polystyrene Macromonomer
Kiyoharu Tsutsumi, Yasuhisa Tsukahara, and Yoshio Okamoto, Polym. J., 26, 13-20 (1994)
195. Asymmetric Polymerization of Aromatic Isocyanates with Optically Active Anionic Initiators
Yoshio Okamoto, Masashi Matsuda, Tamaki Nakano, and Eiji Yashima, J. Polym. Sci. Part A: Polym. Chem., 32, 309-315 (1994)
196. An NMR Study of Chiral Recognition Relevant to the Liquid Chromatographic Separation of Enantiomers by a Cellulose Derivative
Eiji Yashima, Makiko Yamada, and Yoshio Okamoto, Chem. Lett., 1994, 579-582
197. On the Intrinsic Viscosity of Poly(macromonomer)s
Yasuhisa Tsukahara, Shinzo Kohjiya, Kiyoharu Tsutsumi, and Yoshio Okamoto, Macromolecules, 27, 1662-1664 (1994)
198. Chloromethylphenylcarbamate Derivatives of Cellulose as Chiral Stationary Phases for High-Performance Liquid Chromatography
Bezhan Chankvetadze, Eiji Yashima, and Yoshio Okamoto, J. Chromatogr. A, 670, 39-49 (1994)
199. Radical Polymerization Behavior of Macromonomers: 3. Effect of Macromonomer Concentration
Kiyoharu Tsutsumi, Yoshio Okamoto, and Yasuhisa Tsukahara, Polymer, 35, 2205-2209 (1994)
200. 3,5-Dimethylphenylcarbamates of Cellulose and Amylose Regioselectively Bonded to Silica Gel as Chiral Stationary Phases for High-performance Liquid Chromatography
Eiji Yashima, Hiroyasu Fukaya, and Yoshio Okamoto, J. Chromatogr. A, 677, 11-19 (1994)
201. An Optically Active Stereoregular Polyphenylacetylene Derivative as a Novel Chiral Stationary Phase for HPLC
Eiji Yashima, Songlin Huang, and Yoshio Okamoto, J. Chem. Soc., Chem. Commun., 1994, 1811-1812
202. Preparation and Characterization of α-Benzyl-ω-vinylbenzyl Polystyrene Macromonomer
Yasuhisa Tsukahara, Jun Inoue, Yoshinori Ohta, Shinzo Kohjiya, and Yoshio Okamoto, Polym. J., 9, 1013-1018 (1994)
203. Enantiomer Enrichment of Oxprenolol through Cellulose Tris(3,5-dimethylphenylcarbamate) Membrane
Eiji Yashima, Junko Noguchi, and Yoshio Okamoto, J. Appl. Polym. Sci., 54, 1087-1091 (1994)
204. Radical Polymerization Behavior of Polystyrene Macromonomers in the Presence of Inert Polystyrene
Kiyoharu Tsutsumi, Yasuhisa Tsukahara, and Yoshio Okamoto, Polym. J., 26, 1318-1324 (1994)
205. Multiple Buttressing Interactions: Enantiomerization Barrier of Tetrakis(pentamethylphenyl)ethene
Katsuhiro Maeda, Yoshio Okamoto, Orly Toledano, Dan Becker, Silvio E. Biali, and Zvi Rappoport,
J. Org. Chem., 59, 5473-5475 (1994)
206. Chiroptical Properties of Oligomers of m-Methylphenyl Isocyanate Bearing an Optically Active End-Group
Katsuhiro Maeda, Masashi Matsuda, Tamaki Nakano, and Yoshio Okamoto, Polym. J., 27. 141-146 (1995)
207. Dimethyl-, Dichloro- and Chloromethylphenylcarbamates of Amylose as Chiral Stationary Phases for High-performance Liquid Chromatography
Bezhan Chankvetadze, Eiji Yashima, and Yoshio Okamoto, J. Chromatogr. A, 694, 101-109 (1995)
208. Comuputational Studies on Chiral Discrimination Mechanism of Cellulose Trisphenylcarbamate
Eiji Yashima, Makiko Yamada, Yuriko Kaida, and Yoshio Okamoto, J. Chromatogr. A, 694, 347-354 (1995)
209. Enantioseparation of Some Chiral Pharmaceuticals Using Narrow-bore Liquid Chromatography
Bezhan Chankvetadze, Lali Chankvetadze, Sh. Sidamonidze, Eiji Yashima, and Yoshio Okamoto, J. Pharmaceut. & Biomed. Anal., 13, 695-699 (1995)
210. Stereospecific and Asymmetric Polymerization of 1-Phenyldibenzosuberyl Methacrylate with Radical and Anionic Initiators
Yoshio Okamoto, Tamaki Nakano, Yoshifumi Shikisai, and Masatoshi Mori, Macromol. Symp., 89, 479-488 (1995)
211. Synthesis and Conformational Study of Optically Active Poly(phenylacetylene) Derivatives Bearing a Bulky Substituent
Eiji Yashima, Songlin Huang, Teruyuki Matsushima, and Yoshio Okamoto, Macromolecules, 28. 4184-4193 (1995)
212. Induction of a Single-Handed Helical Conformation through Radical Polymerization of Optically Active Phenyl-2-pyridyl-o-tolylmethyl Methacrylate
Yoshio Okamoto, Mitsuhiro Nishikawa, Tamaki Nakano, Eiji Yashima, and Koichi Hatada, Macromolecules, 28, 5135-5138 (1995)
213. Enantioseparation on Fluoro-methylphenylcarbamates of Cellulose and Amylose as Chiral Stationary Phases for High-performance Liquid Chromatography
Eiji Yashima, Chiyo Yamamoto, and Yoshio Okamoto, Polym. J., 27, 856-861 (1995)
214. Asymmetric Anionic Polymerization of Triphenylmethyl Acrylate Leading to a Helical Conformation
Shigeki Habaue, Toshimitsu Tanaka, and Yoshio Okamoto, Macromolecules, 28, 5973-5974 (1995)
215. Termination Stereochemistry in Asymmetric Anionic Polymerization of Triphenylmethyl Methacrylate. Methylation and Protonation of Oligomer Anions
Tamaki Nakano, Yoshio Okamoto, and Koichi Hatada, Polym. J., 27, 882-891 (1995)
216. Asymmetric Polymerization of Triphenylmethyl Methacrylate Using 9-Alkyl-9-fluorenyllithium-(–)-Sparteine Complexes. Influence of Organolithium Structure on the Propagation Stereochemistry
Tamaki Nakano, Yoshio Okamoto, and Koichi Hatada, Polym. J., 27, 892-903 (1995)
217. Polymerization of Methacrylic Esters Using Metal Alkoxides Containing Lanthanoids
Shigeki Habaue, Mayumi Yoshikawa, and Yoshio Okamoto, Polym. J., 27, 986-992 (1995)
218. Continuous and Preparative Enantioseparation of Oxprenolol with Cellulose Tris(3,5-dimethylphenylcarbamate)-coated Belt
Eiji Yashima, Junko Noguchi, and Yoshio Okamoto, Tetrahedron Asymm., 6, 1889-1890 (1995)
219. Does the Threshold Enantiomerization Route of Crowded Tetraarylethenes Involve Double Bond Rotation?
Katsuhiro Maeda, Yoshio Okamoto, Natalia Morlender, Nizar Haddad, Irina Eventova, Silvio E. Biali, and Zvi Rappoport, J. Am. Chem. Soc., 117, 9686-9689 (1995)
220. Determination of (+)- and (–)-Nicardipine Concentrations in Human Serum and their Correlation with the Antihypertensive Effect after Oral Administration of Racemic Nicardipine
T. Iwaoka, N. Inotsume, J. Inoue, S. Naomi, Yoshio Okamoto, S. Higuchi, M. Nakano, and T. Umeda,
Eur. J. Clin. Pharmacol., 48, 345-349 (1995)
221. Helix-Sense-Selective Polymerization of 1-Phenyldibenzosuberyl Methacrylate by Free Radical Mechanism
Tamaki Nakano, Yoshifumi Shikisai, and Yoshio Okamoto, Proc. Japan Acad., 71, Ser. B, 251-255 (1995)
222. Photocontrolled Chiral Recognition by [4-(Phenylazo)phenyl]carbamoylated Cellulose and Amylose Membranes
Eiji Yashima, Junko Noguchi, and Yoshio Okamoto, Macromolecules, 28, 8368-8374 (1995)
223. Asymmetric Anionic Polymerization of 1-Phenyldibenzosubeyl Acrylate Affording Optically Active Polymer with Helical Conformation
Toshimitsu Tanaka, Shigeki Habaue, and Yoshio Okamoto, Polym. J., 27, 1202-1207 (1995)
224. Poly((4-carboxyphenyl)acetylene) as a Probe for Chirality Assignment of Amines by Circular Dichroism
Eiji Yashima, Teruaki Matsushima, and Yoshio Okamoto, J. Am. Chem. Soc., 117, 11596-11597 (1995)
225. Cyclopolymerization of Optically Active (–)-trans-4,5-Bis((methacryloyloxy)-diphenylmethyl)-2,2-dimethyl-1,3-dioxacyclopentane through Radical and Anionic Mechanisms Gives Highly Isotactic Polymers
Tamaki Nakano, Yoshio Okamoto, Dotsevi Y. Sogah, and Shiying Zheng, Macromolecules, 28, 8705-8706 (1995)
226. Helix-Sense-Selective Free Radical Polymerization of 1-Phenyldibenzosuberyl Methacrylate
Tamaki Nakano, Yoshifumi Shikisai, and Yoshio Okamoto, Polym. J., 28, 51-60 (1996)
227. Asymmetric Anionic Polymerization of 1-Phenyldibenzosuberyl and 1-(2-Pyridyl)dibenzosuberyl Methacrylates and Chiral Recognition Ability of the Obtained Polymers
Tamaki Nakano, Akihiro Matsuda, Masatoshi Mori, and Yoshio Okamoto, Polym. J., 28, 330-336 (1996)
228. Asymmetric Polymerization and Oligomerization of 3-Phenylpropanal with Grignard Reagent-(–)-Sparteine Complexes with Termination by Tishchenko Reaction
Seong-Ho Choi, Eiji Yashima, and Yoshio Okamoto, Macromolecules, 29, 1880-1885 (1996)
229. Optical Resolution of Chiral Ethylenebis(4,5,6,7-tetrahydro-1-indenyl)zirconium Derivatives by High-Performance Liquid Chromatography
Shigeki Habaue, Hiroshi Sakamoto, and Yoshio Okamoto, Chem. Lett., 383-384 (1996)
230. Stereospecific Polymerization of Benzyl α-(Methoxymethyl)acrylate
Shigeki Habaue, Hiroshi Yamada, and Yoshio Okamoto, Macromolecules, 29, 3326-3327 (1996)
231. Pronounced Effects of Temperature and Monomer Concentration on Isotactic Specificity of Triphenylmethyl Methacrylate Polymerization through Free Radical Mechanism. Thermodynamic versus Kinetic Control of Propagation Stereochemistry
Tamaki Nakano, Akihiro Matsuda, and Yoshio Okamoto, Polym. J., 28, 556-558 (1996)
232. Asymmetric Anionic Polymerization of meta-Substituted N,N-Diphenylacrylamides
Shigeki Habaue, Kei Shiohara, Takahiro Uno, and Yoshio Okamoto, Enantiomer, 1, 55-62 (1996)
233. NMR studies of Chiral Discrimination Relevant to the Liquid Chromatographic Enantioseparation by a Cellulose Phenylcarbamate Derivative
Eiji Yashima, Chiyo Yamamoto, and Yoshio Okamoto, J. Am. Chem. Soc., 118, 4036-4048(1996)
234. Stereospecific Polymerization of N,N-Diphenylacrylamide
Kei Shiohara, Shigeki Habaue, and Yoshio Okamoto, Polym. J., 28, 682-685 (1996)
235. High Performance Liquid Chromatography Enantioseparation of Chiral Pharmaceuticals Using Tris(chloro-methylphenylcarbamate)s of Cellulose
Bezhan Chankvetadze, Lali Chankvetadze, Sh. Sidamonidze, Eiji Yashima, and Yoshio Okamoto,
J. Phamaceut. and Biochem. Anal., 14, 1295-1303 (1996)
236. Aryl Ether Dendrimers with an Interior Metalloporphyrin Functionality as a Spectroscopic Probe: Interpenetrating Interaction with Dendritic Imidazoles
Yoriko Tomoyose, Dong-Lin Jiang, Ren-Hua Jin, Takuzo Aida, Takashi Yoshihara, Kazuyuki Horie, Eiji Yashima, and Yoshio Okamoto, Macromolecules, 29, 5236-5238 (1996)
237. Preparation of Silica Gel-Bonded Amylose through Enzyme-Catalyzed Polymerization and Chiral Recognition Ability of its Phenylcarbamate Derivatives in HPLC
Naoki Enomoto, Sachiko Furukawa, Yasushi Ogasawara, Hirofumi Akano, Yoshiya Kawamura, Eiji Yashima, and Yoshio Okamoto, Anal. Chem., 68, 2798-2804 (1996)
238. Poly((4-dihydroxyborophenyl)acetylene) as a Novel Probe for Chirality and Structural Assignments of Various Kinds of Molecules Including Carbohydrates and Steroids by Circular Dichroism
Eiji Yashima, Tsuyoshi Nimura, Teruyuki Matsushima, and Yoshio Okamoto, J. Am. Chem. Soc., 118, 9800-9801 (1996)
239. A Stereoregular Polyphenylacetylene Derivative Bearing an Amino Group as a Probe for Chirality Assignment of Acids by Circular Dichroism
Eiji Yashima, Yukio Maeda, and Yoshio Okamoto, Chem. Lett. 955-956 (1996)
240. Synthesis of Optically Active Vasicinone Based on Intramolecular Aza-Wittig Reaction and Asymmetric Oxidation
Shoji Eguchi, Toshio Suzuki, Tomohiro Okawa, Yuji Matsushita, Eiji Yashima, and Yoshio Okamoto,
J. Org. Chem., 61, 7316-7319 (1996)
241. Dichloro-, Dimethyl-, and Chloromethylphenylcarbamate Derivatives of Cyclodextrins as Chiral Stationary Phases for High-Performance Liquid Chromatography
Bezhan Chankvetadze, Eiji Yashima, and Yoshio Okamoto, Chirality, 8, 402-407 (1996)
242. Chiral Discrimination of Bilirubin by Cellulose Trisphenylcarbamate Derivatives in Chloroform and in Film
Eiji Yashima, Hiroyasu Fukaya, Pennapa Sahavattanapong, and Yoshio Okamoto, Enantiomer, 1, 193-199 (1996)
243. HPLC Enantioseparation on Cellulose Tris(3,5-Dimethylphenylcarbamate) as a Chiral Stationary Phase: Influences of Pore Size of Silica Gel, Coating Amount, Coating Solvent, and Column Temperature on Chiral Discrimination
Eiji Yashima, Pennapa Sahavattanapong, and Yoshio Okamoto, Chirality, 8, 446-451 (1996)
244. Enantioseparation on Optically Active Stereoregular Polyphenylacetylene Derivatives as Chiral Stationary Phases for HPLC
Eiji Yashima, Teruyuki Matsushima, Tsuyoshi Nimura, and Yoshio Okamoto, Korean Polym. J., 4, 139-146 (1996)
245. Enantiomeric Resolution of Cycloenantiomeric Rotaxane, Topologically Chiral Catenane, and Pretzel-Shaped Molecules: Observation of Pronounced Circular Dichroism
Chiyo Yamamoto, Yoshio Okamoto, Thomas Schmidt, Ralf Jäger, and Fritz Vögtle, J. Am. Chem. Soc., 119, 10547-10548 (1997) (1996)
246. Rotational Isomers of a 1,2-Diphenyl-3,4-diphosphinidenecyclobutene
Masaaki Yoshifuji, Yoshito Ichikawa, Kozo Toyota, Eiji Kasashima, and Yoshio Okamoto, Chem. Lett., 87-88 (1997)
247. Stereospecific Polymerization of Benzyl α-(Alkoxymethyl)acrylates
Shigeki Habaue, Hiroshi Yamada, Takahiro Uno, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 35, 721-726 (1997)
248. Synthesis of Polyesters from Terephthalaldehyde and Isophthalaldehyde through Tishchenko Reaction Catalyzed by the Ethylmagnesium Bromide-(–)-Sparteine Complex and Aluminum Alkoxides
Seong-Ho Choi, Eiji Yashima, and Yoshio Okamoto, Polym. J., 29, 261-268 (1997)
249. Selective Functionalization on [60]Fullerene Governed by Tether Length
Masumi Taki, Sachiko Sugita, Yosuke Nakamura, Eiji Kasashima, Eiji Yashima, Yoshio Okamoto, and Jun Nishimura, J. Am. Chem. Soc., 119, 926-932 (1997)
250. Synthesis and Anionic Polymerization of Isocyanates Bearing a Carbamate Group
Katsuhiro Maeda, Mamiko Matsunaga, Hiroshi Yamada, and Yoshio Okamoto, Polym. J., 29, 333-338 (1997)
251. Chiral Ethylenebis(4,5,6,7-tetrahydro-1-indenyl)zirconium 2,2’-Biphenolate. Separation and Application to Asymmetric Polymerization
Shigeki Habaue, Hiroshi Sakamoto, and Yoshio Okamoto, Polym. J., 29, 384-386 (1997)
252. Enantioseparation on 4-Halogen-Substituted Phenylcarbamates of Amylose as Chiral Stationary Phases for High-Performance Liquid Chromatography
Eiji Yashima, Eiji Kasashima, and Yoshio Okamoto, Chirality, 9, 63-68 (1997)
253. Stereospecific Anionic Polymerization of Ethyl α-(1-Pyrrolidinylmethyl) Acrylate
Shigeki Habaue, Takahiro Uno, and Yoshio Okamoto, Macromolecules, 30, 3125-3126 (1997)
254. Asymmetric Polymerization of Diphenyl-3-pyridylmethyl Methacrylate Leading to Optically Active Polymer with Helical Conformation and Chiral Recognition Ability of the Polymer
Tamaki Nakano, Kyoichi
Taniguchi, and Yoshio Okamoto, Polym. J.,
29, 540-544 (1997)
255. Enantioselective Tishchenko Reaction of 2-Phenylpropanal Catalyzed with Ethylmagnesium Bromide-(–)-Sparteine Complex
Seong-Ho Choi, Eiji Yashima, and Yoshio Okamoto, Enantiomer, 2, 105-112 (1997)
256. Chromatographic Enantioseparation and Chiral Discrimination in NMR by Trisphenylcarbamate Derivatives of Cellulose, Amylose, Oligosaccharides, and Cyclodextrins
Eiji Yashima, Makiko Yamada, Chiyo Yamamoto, Mutsuo Nakashima, and Yoshio Okamoto, Enantiomer, 2, 225-240 (1997)
257. Chirality Assignment of Amines and Amino Alcohols Based on Circular Dichroism Induced by Helix Formation of a Stereoregular Poly((4-carboxyphenyl)acetylene) through Acid-Base Complexation
Eiji Yashima, Teruyuki Matsushima, and Yoshio Okamoto, J. Am. Chem. Soc., 119, 6345-6359 (1997)
258. Chiral Discrimination by 4-Chloro- and 4-Bromophenylcarbamates of Maltooligosaccharides in HPLC, NMR, and CD
Eiji Yashima, Pennapa Sahavattanapong, Chiyo Yamamoto, and Yoshio Okamoto, Bull. Chem. Soc. Jpn., 70, 1977-1984 (1997)
259. Enantioseparation using Selected Polysaccharides as Chiral Buffer Additives in Capillary Electrophoresis
Bezhan Chankvetadze, Mayuko Saito, Eiji Yashima, and Yoshio Okamoto, J. Chromatogr. A, 773, 331-338 (1997)
260. The First Total Synthesis of (–)-Benzomalvin A via Intramolecular Aza-Wittig Reactions
Toshiyuki Sugimori, Tomohiro Okawa, Shoji Eguchi, Eiji Yashima, and Yoshio Okamoto, Chem. Lett., 869-870 (1997)
261. Chiral Ethylenebis(4,5,6,7-tetrahydro-1-indenyl) Complexes of Zirconium and Hafnium: Separation and Application to Asymmetric Polymerization
Shigeki Habaue, Hiroshi Sakamoto, Hideo Baraki, and Yoshio Okamoto, Macromol. Rapid Commun., 18, 707-713 (1997)
262. Stereospecific Anionic Polymerization of α-(N-tert-Butyl aminomethyl)acrylate Having Unprotected Amino Group
Shigeki Habaue, Hideo Baraki, and Yoshio Okamoto, Polym. J., 29, 872-874 (1997)
263. Preparation of Polyacetylenes Bearing an Amino Group and Their Application to Chirality Assignment of Carboxylic Acids by Circular Dichroism
Eiji Yashima, Yukio Maeda, Teruyuki Matsushima, and Yoshio Okamoto, Chirality, 9, 593-600 (1997)
264. 3-Fluoro-, 3-Chloro- and 3-Bromo-5-methylphenylcarbamates of Cellulose and Amylose as Chiral Stationary Phases for High-performance Liquid Chromatographic Enantioseparation
Bezhan Chankvetadze, Lali Chankvetadze, Sh. Sidamonidze, Eiji Kasashima, Eiji Yashima, and Yoshio Okamoto, J. Chromatogr. A, 787, 67-77 (1997)
265. Stereospecific Anionic Polymerization of α-(N,N-Dialkylaminomethyl)acrylates
Shigeki Habaue, Takahiro Uno, Hideo Baraki, and Yoshio Okamoto, Polym. J., 29, 983-986 (1997)
266. Induced Helix of an Aliphatic Polyacetylene Detected by Circular Dichroism
Eiji Yashima, Hidetoshi Goto, and Yoshio Okamoto, Polym. J., 30, 69-71 (1998)
267. Helical Structure of Oligo- and Poly(m-substituted phenyl isocyanate)s Bearing an Optically Active End-Group
Katsuhiro Maeda and Yoshio Okamoto, Polym. J., 30, 100-105 (1998)
268. Enantioseparation of Atropisomeric 1,1’-Binaphthyl-2,2’-diyl Hydrogen Phosphate in Capillary Electrophoresis by Using Di- and Oligosaccharides as Chiral Selectors
Bezhan Chankvetadze, Mayuko Saito, Eiji Yashima, and Yoshio Okamoto, Chirality, 10, 134-139 (1998)
269. Asymmetric Anionic Polymerization of Alkyl-Substituted N,N-Diphenylacrylamide Derivatives
Kei Shiohara, Shigeki Habaue, and Yoshio Okamoto, Polym. J., 30, 249-255 (1998)
270. Synthesis and Conformation of Optically Active Poly(phenyl isocyanate)s Bearing an ((S)-(α-Methylbenzyl)carbamoyl) Group
Katsuhiro Maeda and Yoshio Okamoto, Macromolecules, 31, 1046-1052 (1998)
271. Asymmetric Anionic Polymerization of N-3-Hydroxyphenyl-N-phenylacrylamide Derivatives
Takahiro Uno, Kei Shiohara, Shigeki Habaue, and Yoshio Okamoto, Polym. J., 30, 352-355 (1998)
272. Asymmetric Anionic Polymerization of N-3-Hydroxyphenyl-N-phenylacrylamide Derivatives
Kozo Matsumoto, Chiyo Yamamoto, Eiji Yashima, and Yoshio Okamoto, Anal. Commun., 35, 63-66 (1998)
273. Stereospecific Polymerization of Vinyl Acetate in Fluoroalcohols. Synthesis of Syndiotactic Poly(vinyl alcohol)
Kazunobu Yamada, Tamaki Nakano, and Yoshio Okamoto, Proc. Japan Acad., 74, Ser. B, 46-49 (1998)
274. A Triple Layered Helical Cyclophane – One-pot Synthesis, Enantiomer Separation and Chiroptical Properties
Jörg Herren, Adam Sobanski, Martin Niege, Chiyo Yamamoto, Yoshio Okamoto, and Fritz Vögtle, Tetrahedron: Asymmetry, 9, 1369-1375 (1998)
275. The First Total Synthesis of (–)-Benzomalvin A and Benzomalvin B via the Intramolecular Aza-Wittig Reactions
Toshiyuki Sugimari, Tomohiro Okawa, Shoji Eguchi, Akikazu Kakehi, Eiji Yashima, and Yoshio Okamoto, Tetrahedron, 54, 7997-8008 (1998)
276. Asymmetric Polymerization of 9-Phenylfluoren-9-yl Methacrylate Leading to a Polymer with Main-Chain Configurational Chirality. Synthesis of Optically Active Poly(methyl methacrylate)
Tamaki Nakano, Yasuaki Hidaka, and Yoshio Okamoto, Polym. J., 30, 596-600 (1998)
277. Asymmetric Polymerization of 1-(3-Pyridyl)dibenzosuberyl Methacrylate and Chiral Recognition by the Obtained Optically Active Polymer Having Single-Handed Helical Conformation
Tamaki Nakano, Yoichi Satoh, and Yoshio Okamoto, Polym. J., 30, 635-640 (1998)
278. Synthesis of Syndiotactic Poly(vinyl alcohol) from Fluorine-Containing Vinyl Esters
Kazunobu Yamada, Tamaki
Nakano, and Yoshio Okamoto, Polym. J.,
30, 641-645 (1998)
279. Stereochemistry of Free-Radical Polymerization of Bulky Vinyl Esters
Tamaki Nakano, Ken-ichi Makita, and Yoshio Okamoto, Polym. J., 30, 681-683 (1998)
280. Enantioseparation on 3,5-Dichloro- and 3,5-Dimethylphenylcarbamates of Polysaccharides as Chiral Stationary Phases for High-Performance Liquid Chromatography
Yoshio Okamoto, Junko Noguchi, and Eiji Yashima, React. Funct. Polym., 37, 183-188 (1998)
281. Unusual Conformational Change of Optically Active Poly(3-((S)-sec-butoxycarbonyl)phenyl Isocyanate)
Katsuhiro Maeda and Yoshio Okamoto, Macromolecules, 31, 5164-5166 (1998)
282. Asymmetric Anionic Polymerization of (2-Fluorophenyl)(4-fluorophenyl)(2-pyridyl)methyl Methacrylate Leading to a Helical Polymer
Jian Wu, Tamaki Nakano, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 36, 2013-2019 (1998)
283. Helicity Induction of Poly (3-carboxyphenyl isocyanate) by Chiral Acid-Base Interaction
Katsuhiro Maeda, Norikazu Yamamoto, and Yoshio Okamoto, Macromolecules, 31, 5924-5926 (1998)
284. Helix-Helix Transition of Optically Active Poly((1R,2S)-N-(4-ethynylbenzyl)norephedrine) Induced by Diastereomeric Acid-Base Complexation Using Chiral Stimuli
Eiji Yashima, Yukio Maeda, and Yoshio Okamoto, J. Am. Chem. Soc., 120,8895-8896 (1998)
285. Enantiomeric Enrichment of Stereolabile Chiral Spiro Compounds by Dynamic HPLC on Chiral Stationary Phases
Klaus Lorenz, Eiji Yashima, and Yoshio Okamoto, Angew. Chem. Int. Ed., 37, 1922-1925 (1998)
286. Stereospecific Free Radical Polymerization of Vinyl Esters Using Fluoroalcohols as Solvents
Kazunobu Yamada, Tamaki Nakano, and Yoshio Okamoto, Macromolecules, 31, 7598-7605 (1998)
287. Stereospecific Anionic Polymerization of Chiral Benzyl α-[(1-Phenylethoxy)methyl]acrylate
Takahiro Uno, Shigeki Habaue, and Yoshio Okamoto, Chirality, 10, 711-716 (1998)
288. A New Approach to Light-Harvesting with Dendritic Antenna
Takuzo Aida, Dong-Lin Jiang, Eiji Yashima, and Yoshio Okamoto, Thin Solid Films, 331, 254-258 (1998)
289. Polymerization and Asymmetric Oligomerization of Allylsilanes Using Chiral Ethylenebis (4,5,6,7-tetrahydro-1-indenyl)zirconium and -Hafnium Complexes
Shigeki Habaue, Hideo Baraki, and Yoshio Okamoto, Macromol. Chem. Phys., 199, 2211-2215 (1998)
290. Synthesis and Conformational Characteristics of Poly(phenyl isocyanate)s Bearing an Optically Active Ester Group
Katsuhiro Maeda and Yoshio Okamoto, Macromolecules, 32, 974-980 (1999)
291. Enantiomer Separation of Fungicidal Triazolyl Alcohols by Normal Phase HPLC on Polysaccharide-Based Chiral Stationary Phases
Torsten Spitzer, Eiji Yashima, and Yoshio Okamoto, Chirality, 11, 195-200 (1999)
292. Helix-Sense-Selective Free-Radical Polymerization of 1-Phenyldibenzosuberyl Methacrylate Using a Cobalt(II) Complex
Tamaki Nakano and Yoshio Okamoto, Macromolecules, 32, 2391-2393 (1999)
293. Helix-Sense-Selective and Enantiomer-Selective Polymerization of a Chiral Methacrylate by Anionic and Free-Radical Mechanisms
Tamaki Nakano, Naotaka Kinjo, Yasuaki Hidaka, and Yoshio Okamoto, Polym. J., 31, 464-469 (1999)
294. Stereochemistry of Acrylate Polymerization in Toluene Using n-BuLi
Weihong Liu, Tamaki Nakano, and Yoshio Okamoto, Polym. J., 31, 479-481(1999)
295. The Cone-to-Cone Interconversion of Partially O-Methylated Calix[4]arenes: First Experimental Values for the Energy Barriers
Toshiya Kusano, Moniralsadat Tabatabai, Yoshio Okamoto, and Volker Böhmer, J. Am. Chem. Soc., 121, 3789-3790 (1999)
296. Quaternary Salt Formation of Optically Active Helical Polymethacrylates Having Pyridyl Group in the Side Chain
Tamaki Nakano, Youichi Satoh, and Yoshio Okamoto, React. Funct. Polym., 40, 135-141 (1999)
297. Flexibility vs Rigidity of Singly and Doubly Tethered Biphenyls: Structure, Dynamic Stereochemistry, and Resolution of Tribenzo[a,c,f]cyclooctane, Tetrabenzo [a,de,h,kl]bicyclo[6.6.0]tetradecane, and Their Alkyl Derivatives
Lior Eshdat, Elad Shabtai, Sadiq A. Saleh, Tamar Sternfeld, Mayuko Saito, Yoshio Okamoto, and Mordecai Rabinovitz, J. Org. Chem., 64, 3532-3537 (1999)
298. Memory of Macromolecular Helicity Assisted by Interaction with Achiral Small Molecules
Eiji Yashima, Katsuhiro Maeda, and Yoshio Okamoto, Nature, 399, 449-451(1999)
299. Polymerization of Optically Active 2-Fluorophenyl-4-fluorohenyl-2-pyridylmethyl Methacrylate with Anionic and Radical Initiators: Stereospecificity and Helix-Sense Selection
Jian Wu, Tamaki Nakano, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 37, 2645-2648 (1999)
300. Free-Radical Polymerization of Vinyl Esters Using Fluoroalcohols as Solvents: Effect of Monomer Structure on Stereochemistry
Kazunobu Yamada, Tamaki Nakano, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 37, 2677-2683 (1999)
301. Computational Studies on Chiral Discrimination Mechanism of Phenylcarbamate Derivatives of Cellulose
Chiyo Yamamoto, Eiji Yashima, and Yoshio Okamoto, Bull. Chem. Soc. Jpn., 72, 1815-1825 (1999)
302. Application of TLC-MALDI/TOFMS to Identification of Unknown Mixtures Produced in an Organic Synthetic Process
Kozo Matsumoto, Shigeki Habaue, Hiroharu Ajiro, and Yoshio Okamoto, J. Mass Spectrom. Soc. Jpn., 47, 274-280 (1999)
303. Stereospecific Free-Radical Polymerization of Methacrylates Using Fluoroalcohols as Solvents
Yutaka Isobe, Kazunobu Yamada, Tamaki Nakano, and Yoshio Okamoto, Macromolecules, 32, 5979-5981 (1999)
304. Stereocontrol in Radical Polymerization of Benzyl α-(Methoxymethyl)acrylate Using Zinc Salts
Shigeki Habaue, Takahiro Uno, and Yoshio Okamoto, Polym. J., 31, 900-902 (1999)
305. Stereospecific Anionic Polymerization of α-(Alkylthiomethyl)acrylates and α-(2-Thienylmethyl)acrylate
Shigeki Habaue, Tomoyuki Shibagaki, and Yoshio Okamoto, Polym. J., 31, 942-947 (1999)
306. Chiral Recognition of Cellulose Tris(5-fluoro-2-methylpheylcarbamate) toward (R)- and (S)-1,1'-bi-2-naphthol Detected by Negative Ion Fast-atom Bombardment Mass Spectrometry
Kozo Matsumoto, Chiyo Yamamoto, Eiji Yashima, and Yoshio Okamoto, Rapid Commun. Mass Spectrom., 13, 2011-2013 (1999)
307. Synthesis of Poly[N-(4-ethynylbenzyl)ephedrine] and Its Use as a Polymeric Catalyst for Enantioselective Addition of Dialkylzincs to Benzaldehyde
Eiji Yashima, Yukio Maeda, and Yoshio Okamoto, Polym. J., 31, 1033-1036 (1999)
308. Metal-Induced Chirality Induction and Chiral Recognition of Optically Active, Regioregular Polythiophenes
Eiji Yashima, Hidetoshi Goto,
and Yoshio Okamoto, Macromolecules, 32, 7942-7945 (1999)
309. Chiral Separetions in Capillary High-Performance Liquid Chromatography and Nonaqueous Capillary Electrochromatography Using Helically Chiral Poly(diphenyl-2-pyridylmethyl methacrylate) as Chiral Stationary Phase
Kerstin Krause, Bezhan Chankvetadze, Yoshio Okamoto, and Gottfried Blaschke, Electrophoresis, 20, 2772-2778 (1999)
310. Stereospecific Anionic Polymerization and Novel Hydrogen-Transfer Polymerization of α-(Aminomethyl)acrylates Having Unprotected Amino Group
Hideo Baraki, Shigeki Habaue, and Yoshio Okamoto, Polym. J., 31, 1260-1266 (1999)
311. Free-Radical Copolymerization of Vinyl Esters Using Fluoroalcohols as Solvents: The Solvent Effect on the Monomer Reactivity Ratio
Kazunobu Yamada, Tamaki Nakano, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 38, 220-228 (1999)
312. Enantioseparation by Using Chitin Phenylcarbamates as Chiral Stationary Phases for High-Performance Liquid Chromatography
Chiyo Yamamoto, Tomoko Hayashi, Yoshio Okamoto, and Shiro Kobayashi, Chem. Lett., 12-13 (2000)
313. Stereospecific Radical Polymerization of α-(Alkoxymethyl)acrylates Controlled by a Catalytic Amount of Zinc Halides
Shigeki Habaue, Takahiro Uno, Hideo Baraki, and Yoshio Okamoto, Macromolecules, 33 820-824 (2000)
314. Stereospecific Anionic Polymerization of Novel α-Substituted Acrylates Bearing Aromatic Heterocycles
Shigeki Habaue, Hideo Baraki, Tomoyuki Shibagaki, and Yoshio Okamoto, Polym. J., 32, 173-177 (2000)
315. HPLC Enantioseparation with Cellulose Tris(3,5-dichlorophenylcarbamate) in Aqueous Methanol as a Mobil Phase
Bezhan Chankvetadze, Chiyo
Yamamoto, and Yoshio Okamoto, Chem. Lett.,
352-353 (2000)
316. Stereospecific Polymerization of α-(Menthoxymethyl)acrylate
Takahiro Uno, Shigeki Habaue, and Yoshio Okamoto, Enantiomer, 5, 29-36 (2000)
317. Asymmetric Radical Polymerization of Maleimides Using a Chiral Cobalt (II) Complex
Tamaki Nakano, Daisuke Tamada, Jun-ichi Miyazaki, Kiyomi Kakiuchi, and Yoshio Okamoto, Macromolecules, 33, 1489-1491 (2000)
318. Stereospecific Radical Polymerization of Fluoroalkyl Acrylates
Weihong Liu, Tamaki Nakano, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 38, 1024-1032 (2000)
319. Tris(cyclohexylcarbamate)s of Cellulose and Amylose as Potential Chiral Stationary Phases for High-Performance Liquid Chromatography and Thin-Layer Chromatography
Takateru Kubota, Chiyo Yamamoto, and Yoshio Okamoto, J. Am. Chem. Soc., 122, 4056-4059 (2000)
320. Unusual Solvent Effects on Chiroptical Properties of an Optically Active Regioregular Polythiophene in Solution
Hidetoshi Goto, Eiji Yashima, and Yoshio Okamoto, Chirality, 12, 396-399 (2000)
321. Polymerization of t-Butyl Acrylate Using Organoaluminum Complexes and Correlation between Main-chain Tacticity and Glass Transition Temperature of the Obtained Polymers
Weihong Liu, Tamaki Nakano, and Yoshio Okamoto, Polymer, 41, 4467-4472 (2000)
322. Synthesis and Structure of Poly(phenyl isocyanate)s Bearing an Optically Active Alkoxyl Group
Kyoko Hino, Katsuhiro Maeda,
and Yoshio Okamoto, J. Phys. Org. Chem.,
13, 361-367 (2000)
323. Stereospecific Radical Polymerization of N-Methyl Methacrylamide
Jing Zhang, Weihong Liu, Tamaki Nakano, and Yoshio Okamoto, Polym. J., 32, 694-699 (2000)
324. Stereochemistry of Radical Polymerization of Vinyl Esters in the Presence of Lewis Acid
Kazubobu Yamada, Tamaki Nakano, and Yoshio Okamoto, Polym. J., 32, 707-710 (2000)
325. Stereocontrol in Radical Polymerization of N,N-Dimethylacrylamide and N,N-Diphenylacrylamide and Thermal Properties of Syndiotactic Poly(methyl acrylate)s Derived from the Obtained Polymers
Weihong Liu, Tamaki Nakano, and Yoshio Okamoto, Polym. J., 32, 771-777 (2000)
326. Extremely High Enantiomer Recognition in HPLC Separation of Racemic 2-(Benzylsulfinyl)benzamide Using Cellulose Tris(3,5-dichlorophenylcarbamate) as a Chiral Stationary Phase
Bezhan Chankvetazde, Chiyo Yamamoto, and Yoshio Okamoto, Chem. Lett., 2000, 1176-1177
327. Chiral Dendrophanes, Dendro[2]rotaxanes, and Dendro[2]catenanes: Synthesis and Chiroptical Phenomena
Carin Reuter, Gregor Pawlitzki, Udo Wörsdörfer, Marcus Plevoets, Andre Mohry, Takateru Kubota, Yoshio Okamoto, and Fritz Vögtle, Eur. J. Org. Chem., 2000, 3059-3067
328. Anionic Polymerization of o-Substituted Styrene Derivatives: Control of Reactivity and Stereochemistry by Aminomethyl Group
Shigeki Habaue, Hiroharu Ajiro, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem. 38, 4088-4094 (2000)
329. Resolution and Rotational Barriers of Quinolinone and Acridone Sulfenamide Derivatives: Demonstration of the S-N Chiral Axis
Merav Ben-David Blanca, Chiyo Yamamoto, Yoshio Okamoto, Silvio E. Biali, and Daniel Kost, J. Org. Chem., 65, 8613-8620 (2000)
330. Catalytic Stereocontrol by Scandium Trifluoromethanesulfonate in Radical Polymerization of α-(Alkoxymethyl)acrylates
Shigeki Habaue, Hideo Baraki, and Yoshio Okamoto, Polym. J., 32, 1017-1021 (2000)
331. Enantioseparations in Nonaqueous and Aqueous Capillary Electrochromatography using Helically Chiral Poly(diphenyl-2-pyridylmethylmethacrylate) as Chiral Stationary Phase
Kerstin Krause, Bezhan Chankvetadze, Yoshio Okamoto, and Gottfried Blaschke, J. Microcol. Sep., 12, 398-406 (2000)
332. Molecular Recognition of Nucleosides and Nucleotides Based on Circular Dichroism Induced by Helix Formation of Poly[(4-dihydroxyborophenyl)acetylene]
Hiroaki Kawamura, Katsuhiro Maeda, Yoshio Okamoto, and Eiji Yashima, Chem. Lett., 1176-1177 (2000)
333. Enatioseparations Using Cellulose Tris(3,5-dichlorophenylcarbamate) During High-performance Liquid Chromatography with Analytical and Capillary Columns: Potential for Screening of Chiral Compounds
Bezhan Chankvetadze, Chiyo Yamamoto, and Yoshio Okamoto, Combinatorial Chem. & High Throughput Screening, 3, 497-508 (2000)
334. Stereocontrol in the Free-Radical Polymerization of Methacrylates with Fluoroalcohols
Yutaka Isobe, Kazunobu Yamada, Tamaki Nakano, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym Chem., 38, 4693-4703 (2000)
335. Highly Efficient Enantioseparations in Non-aqueous Capillary Electrochromatography using Cellulose Tris(3,5-dichlorophenylcarbamate) as Chiral Stationary Phase
Marco Girod, Bezhan Chankvetadze, Yoshio Okamoto, and Gottfried Blaschke, J. Sep. Sci., 24, 27-34 (2001)
336. Comparative Capillary Chromatographic and Capillary Electrochromatographic Enantioseparations Using Cellulose Tris(3,5-dichlorophenylcarbamate) as Chiral Stationary Phase
Bezhan Chankvetadze, Irma Kartozia, Jorg Breitkreutz, Macro Girod, Martin Knobloch, Yoshio Okamoto, and Gottfried Blaschke, J. Sep. Sci., 24, 251-257 (2001)
337. Asymmetric Anionic and Free-Radical Polymerization of 10,10-Dimethyl- and 10,10-Dibutyl-9-phenyl-9,10-dihydroanthracen-9-yl Methacrylate Leading to Single-Handed Helical Polymers
Tamaki Nakano, Naotaka Kinjo, Yasutaka Hidaka, and Yoshio Okamoto, Polym. J., 33, 306-309 (2001)
338. Electron Spin Resonance Study of Stereospecific Polymerization of Vinyl Esters in Fluoroalcohols
Kazunobu Yamada, Atsushi Kajiwara, Tamaki Nakano, and Yoshio Okamoto, Polym. J., 33, 313-316 (2001)
339. Synthesis and Chiral Recognition Ability of a Cross-linked Polymer Gel Prepared by a Molecular Imprint Method Using Chiral Helical Polymers as Templates
Tamaki Nakano, Youichi Satoh,
and Yoshio Okamoto, Macromolecules, 34, 2405-2407 (2001)
340. Direct Resolution of C76 Enantiomers by HPLC Using an Amylose-based Chiral Stationary Phase
Chiyo Yamamoto, Tomoko Hayashi, Yoshio Okamoto, Shingo Ohkubo, and Tatsuhisa Kato, Chem. Commun., 2001, 925-926
341. Stereospecific Anionic Polymerzation of α-Substituted Acrylates Bearing Acetylenic Groups
Hideo Baraki, Shigeki Habaue, and Yoshio Okamoto, Polym. J., 33, 450-455 (2001)
342. Stereocontrol during the Free-Radical Polymerzation of Methacrylates with Lewis Acids
Yutaka Isobe, Tamaki Nakano, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 39, 1463-1471 (2001)
343. Diastereoselective Inter- and Intramolecular Pinacol Coupling of Aldehydes Promoted by Monomeric Titanocene(III) Complex Cp2 TiPh
Yoshihiko Yamamoto, Reiko Hattori, Takeyuki Miwa, Yu-ichiro Nakagai, Takateru Kubota, Chiyo Yamamoto, Yoshio Okamoto, and Kenji Itoh, J. Org. Chem., 66, 3865-3870 (2001)
344. Modifications of TLC-MALDI-TOFMS for Lower Detection Limits Comparable with Conventional MALDI-TOFMS
Kozo Matsumoto, Hiroharu Ajiro, Shigeki Habaue, and Yoshio Okamoto, J. Mass Spectrom. Soc. Jpn., 49, 127-132 (2001)
345. Cellulose 3,5-Dimethylphenylcarbamate Immobilized onto Silica Gel via Copolymerzation with a Vinyl Monomer and Its Chiral Recognition Ability as a Chiral Stationary Phase for HPLC
Takateru Kubota, Toshiya Kusano, Chiyo Yamamoto, Eiji Yashima, and Yoshio Okamoto, Chem. Lett., 724-725 (2001)
346. Free-Radical Intermadiates in Atom Transfer Radical Addition and Polymerization: Study of Racemization, Halogen Exchange, and Trapping Reactions
Krzysztof Matyjaszewski, Hyun-jong Paik, Devon A. Shipp, Yutaka Isobe, and Yoshio Okamoto, Macromolecules, 34, 3127-3129 (2001)
347. Helix-Sense-Selective Polymerization of (1-Methylpiperidin-4-yl)-diphenylmethyl Methacrylate by Anionic and Free-Radical Catalyses
Tamaki Nakano, Kiyoko Ueda, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 39, 1610-1614 (2001)
348. Stereospecific Polymerization of Vinyl Acetate in Fluoroalcohols and Synthesis of Syndiotactic Poly(vinyl alcohol)
Yoshitaka Nagara, Kazunobu Yamada, Tamaki Nakano, and Yoshio Okamoto, Polym. J., 33, 534-539 (2001)
349. Stereospecific Radical Polymerization of α-(Alkoxymethyl)acrylates Controlled by Lewis Acid Catalysts: Mechanistic Study and Effect of Amino Alcohols as Ligand for Zinc Bromide
Hideo Baraki, Shigeki Habaue,
and Yoshio Okamoto, Macromolecules, 34,
4724-4729 (2001)
350. Efficient Lewis Acid-Catalyzed Stereocontrolled Radical Polymerization of Acrylamides
Yutaka Isobe, Daigo Fujioka,
Shigeki Habaue, and Yoshio Okamoto, J.
Am. Chem. Soc., 123,
7180-7181(2001)
351. Enantioseparation of Selected Chiral Sulfoxides Using Polysaccharide-Type Chiral Stationary Phases and Polar Organic, Polar Aqueous-Organic and Normal-Phase Eluents
Bezhan Chankvetadze, Chiyo Yamamoto, and Yoshio Okamoto, J. Chromatogr. A, 922, 127-137 (2001)
352. Novel Amide-Based Molecular Knots: Complete Enantiomeric Separation, Chiroptical Properties, and Absolute Configuration
Fritz Vögtle, Annette Hünten, Erik Vogel, Sven Buschbeck, Oliver Safarowsky, Janosch Recker, Amir-Hossain Parham, Michael Knott, Walter M. Müller, Ute Müller, Yoshio Okamoto, Takateru Kubota, Wolfgang Lindner, Eric Francotte, and Stefan Grimme, Angew. Chem. Int. Ed., 40, 2468-2471 (2001)
353. Chemoselective Ring-Opening Polymerization of a Lactone Having exo-Methylene Group with Lipase Catalysis
Hiroshi Uyama and Shiro Kobayashi, Masatake Morita, Shigeki Habaue, and Yoshio Okamoto, Macromolecules, 34, 6554-6556 (2001)
354. Properties of Highly Syndiotactic Poly(vinyl alcohol)
Yoshitaka Nagara, Tamaki Nakano, Yoshio Okamoto, Yasuo Gotoh, and Masanobu Nagura, Polymer, 42, 9679-9686 (2001)
355. Dibenzofulvene, a 1,1-Diphenylethylene Analogue, Gives a π-Stacked Polymer by Anionic, Free-Radical, and Cationic Catalysts
Tamaki Nakano, Kazuyuki Takewaki, Tohru Yade, and Yoshio Okamoto, J. Am. Chem. Soc., 123, 9182-9183 (2001)
356. The Effect of Pore Size of Silica Gel And Concentration of Buffer on Capillary Chromatographic And Capillary Electrochromatographic Enantioseparations Using Cellulose Tris(3,5-Dichlorophenylcarbamate)
Bezhan Chankvetadze, Irma Kartozia, Yoshio Okamoto, and Gottfried Blaschke, J. Sep. Sci., 24, 635-642 (2001)
357. Effect of Organic Solvent, Electrolyte Salt and a Loading of Cellulose Tris(3,5-Dichlorophenylcarbamate) on Silica Gel on Enantioseparation Characteristics in Capillary Electrochromatography
Bezhan Chankvetadze, Irma Kartozia, Jörg Breitkreutz, Yoshio Okamoto, and Gottfried Blaschke, Electrophoresis, 22, 3327-3334 (2001)
358. Helix Formation of Poly(phenylacetylene) Derivatives Bearing Amino Groups at the Meta Position Induced by Optically Active Carboxylic Acids
Katsuhiro Maeda, Seiji Okada, Eiji Yashima, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 39, 3180-3189 (2001)
359. Surface Structure Control of Macroporous Silica Gel by Atom Transfer Radical Polymerization
Shigeki Habaue, Osamu Ikeshima, Hiroharu Ajiro, and Yoshio Okamoto, Polym. J., 33, 902-905 (2001)
360. Enantioseparations in capillary liquid chromatography and capillary electrochromatography using amylose tris(3,5-dimethylphenylcarbamate) in combination with aqueous organic mobile phase
Shigeki Habaue, Masatake Morita, and Yoshio Okamoto, J. Sep. Sci., 25, 653–660 (2002)
361. Synthesis and Function of Novel Poly(crown ether)s
Shigeki Habaue, Osamu Ikeshima, Hiroharu Ajiro, and Yoshio Okamoto, Kobunshi Ronbunshu, 59, 717-724 (2002) (Japanese)
362. Comparative Enantioseparation of Selected Chiral Drugs on Four Different Polysaccharide-Type Chiral Stationary Phases Using Polar Organic Mobile Phases
Bezhan Chankvetadze, Irma Kartozia, Chiyo Yamamoto, and Yoshio Okamoto, J. Pharm. Biomed. Anal., 27, 467-478 (2002)
363. Synthesis of Single–Handed Helical Poly(1-dibenzosuberyl methacrylate) via Radical Polymerization in the Presence of an Optically Active Cobalt (II) Complex
Tamaki Nakano, Kumiko Tsunematsu, and Yoshio Okamoto, Chem. Lett., 42-43 (2002)
364. Application of TLC-MALDI-TOFMS to Identification of Co(II) and Co(III) Acetylacetonates
Kozo Matsumoto, Hiroharu Ajiro, Shigeki Habaue, and Yoshio Okamoto J. Mass Spectrom. Soc. Jpn., 50, 15-17 (2002)
365. Stereochemistry in Anionic Polymerization of Styrene Derivatives Bearing Optically Active Amino Groups at ortho-Position
Hiroharu Ajiro, Shigeki Habaue, and Yoshio, Polym. J., 34, 57-62 (2002)
366. Enantioseparations in Nonaqueous Capillary Liquid Chromatography and Capillary Electro-Chromatography Using Cellulose Tris(3,5-dimethylphenylcarbamate) as Chiral Stationary Phase
Lali Chankvetadze, Irma Kartozia, Chiyo Yamamoto, Bezhan Chankvetadze, Gottfried Blaschke, and Yoshio Okamoto, Electrophoresis, 23, 5486-493 (2002)
367. Chromatographic Enantioseparation on a Wall-Coated Open Tubular Capillary Column Containing Covalently Bound Cellulose (3,5-Dichlorophenylcarbamate) as Chiral Selector
Tsuneki Wakita, Bezhan Chankvetadze, Chiyo Yamamoto, and Yoshio Okamoto, J. Sep. Sci., 25, 167-169 (2002)
368. Asymmetric Oxidative Coupling Polymerization of Optically Active Tetrahydroxybinaphthalene Derivative
Shigeki Habaue, Tomoaki Seko,
and Yoshio Okamoto, Macromolecules, 35, 2437-2439 (2002)
369. Anionic Polymerization of Macrocyclic α-(Alkoxymethyl) Acrylates Leading to Novel Vinyl Polymer with Crown Ether Type Side Chain
Shigeki Habaue, Masatake Morita, and Yoshio Okamoto, Macromolecules, 35, 2432-2434 (2002)
370. Detection of Solid Cobalt Species by Matrix-Assisted Laser Desorption/Ionization Time-of-flight Mass Spectrometry
Kozo Matsumoto, Hiroharu Ajiro, Shigeki Habaue, and Yoshio Okamoto, Rapid Commun. Mass Spectrom., 16, 730-732 (2002)
371. Chromatographic Enantioseparation by Cycloalkylcarbamate Derivatives of Cellulose and Amylose
Takateru Kubota, Chiyo Yamamoto, and Yoshio Okamoto, Chirality, 14, 372-376 (2002)
372. Solvent-Induced Chiroptical Changes in Supramolecular Assemblies of an Optically Active, Regioregular Polythiophene
Hidetoshi Goto, Yoshio
Okamoto, and Eiji Yashima, Macromolecules,
35, 4590-4601 (2002)
373. Stereospecific Anionic Polymerization of α-(Alkoxymethyl)acrylates Derivatives Affording Novel Vinyl Polymers with Macrocyclic Side Chains
Shigeki Habaue, Masatake Morita, and Yoshio Okamoto, Polymer, 43, 3469-3474 (2002)
374. Isotactic-Specific Radical Polymerization of Methacrylamides in the Presence of Lewis Acids
Yoshikatsu Suito, Yutaka Isobe, Shigeki Habaue, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 40, 2497-2500 (2002)
375. Metal-Induced Supramolecular Chirality in an Optically Active Polythiophene Aggregate
Hidetoshi Goto, Yoshio Okamoto, and Eiji Yashima, Chem. Eur. J., 8, 4027-4036 (2002)
376. Stereocontrol in Radical Polymerization of Acrylic Monomers
Yoshio Okamoto, Shigeki Habaue, Yutaka Isobe, and Tamaki Nakano, Macromol. Symp., 183, 83-88 (2002)
377. Dendronized Molecular Knots: Selective Synthesis of Various Genarations, Enantiomer Separation, Circular Dichroism
Janosch Recker, Walter M. Müller, Ute Müller, Takateru Kubota, Yoshio Okamoto, Martin Nieger, and Fritz Vögtle, Chem. Eur. J., 8, 4434-4442 (2002)
378. Temperature Dependence of Helical Structures of Poly(phenylacetylene) Derivatives Bearing an Optically Active Substituent
Kazuhide Morino, Katsuhiro Maeda, Yoshio Okamoto, Eiji Yashima, and Takahiro Sato, Chem. Eur. J., 8, 5112-5120 (2002)
379. Structural Analysis of Amylose Tris(3,5-dimethylphenylcarbamate) by NMR Relevant to Its Chiral Recognition Mechanism in HPLC
Chiyo Yamamoto, Eiji Yashima, and Yoshio Okamoto, J. Am. Chem. Soc., 124, 12583-12589 (2002)
380. Stereocontrolled Radical Polymerization of Acrylamides and Methacrylamides using Lewis Acids
Shigeki Habaue, Yutaka Isobe, and Yoshio Okamoto, Tetrahedron, 58, 8205-8209 (2002)
381. Synthesis of AB and ABA Type Block Copolymers of Vinyl Chloride Using Iniferter Technique
Yoshitaka Oki and Yoshio Okamoto, Polym. J., 34, 736-741 (2002)
382. Metal-Induced Supramolecular Chirality in an Optically Active Polythiophene Aggregate
KHidetoshi Goto, Yoshio Okamoto, and Eiji Yashima, Chem. Eur. J., 8, 4027-4036 (2002)
383. Pseudotetrahedral Polyheloadamantanes as Chiral Probes: Synthesis, Separation, and Absolute Configuration
Peter R. Schreiner, Andrey A. Fokin, Oliver Lauenstein, Yoshio Okamoto, Tsuneki Wakita, Christpher Rinderspacher, Gregory H. Robinson, Jason K. Vohs, and Charles F. Campana, J. Am. Chem. Soc. 2002, 124, 13348-13349 (2002)
384. Resolution of Enantiomers Using Sugar-Carrying Polyisocyanides as Chiral Stationary Phases for HPLC
Akiko Tsuchida, Teruaki Hasegawa, Kazukiyo Kobayashi, Chiyo Yamamoto, and Yoshio Okamoto, Bull. Chem. Soc. Jpn., 75, 2681-2685 (2002)
385. Helical Structural Change in Poly((4-carboxyphenyl)acetylene) by Acid-Base Complexation with an Optically Active Amine
Yuichi Ashida, Takahiro Sato, Kazuhide Morino, Katsuhiro Maeda, Yoshio Okamoto, and Eiji Yashima, Macromolecules, 36, 3345-3350 (2003)
386. Comparative study on the application of capillary liquid chromatography and capillary electrochromatography for investigation of enantiomeric purity of the contraceptive drug levonorgestrel
Bezhan Chankvetadze, Irma Kartozia, Chiyo Yamamoto, Yoshio Okamoto, Gottfried Blaschke, J. Pharm. Biomed. Anal., 30, 1897-1906 (2003)
387. Comparison of Chiral Separation on Amylose and Cellulose Tris(3,5-dimethylphenylcarbamate)-Coated Zirconia in HPLC
In Whan Kim, Jong Kwon Ryu, Sung Duck Ahn, Jung Hag Park, Kwang-Pill Lee, Jae Jeong Ryoo, Myung Ho Hyun, Yoshio Okamoto, Chiyo Yamamoto, and Peter W. Carr, Bull. Korean Chem. Soc., 24, 239-242 (2003)
388. Synthesis of Isotactic Poly(N-isopropylacrylamide) by RAFT Polymerization in the Presence of Lewis Acid
Biswajit Ray, Yutaka Isobe, Kohei Morioka, Shigeki Habaue, Yoshio Okamoto, Masami Kamigaito, and Mitsuo Sawamoto, Macromolecules, 36, 543-545 (2003)
389. A Topologically Chirall Molecular Dumbbell
Oleg Lukin, Janosch Recker, Athanasia Böhmer, Walter M. Müller, Takateru Kubota, Yoshio Okamoto, Martin Nieger, Roland Fröhlich, and Fritz Vögtle, Angew. Chem. Int. Ed., 42, 442-445 (2003)
390. Prepatation of Chiral Stationary Phase for HPLC Based on Immobilization of Cellulose 3,5-Dimethylphenylcarbamate Derivatives on Silica Gel
Takateru Kubota, Chiyo Yamamoto, and Yoshio Okamoto, Chirality, 15, 77-82 (2003)
391. Stereocontrol during the Free-Radical Polymerization of Methacrylamides in the Presence of Lewis Acids
Yutaka Isobe, Yoshikatsu Suito, Shigeki Habaue, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 41, 1027-1033 (2003)
392. Synthesis of a Chiral Tube
Rainer Herges, Markus Deichmann, Tsuneki Wakita, and Yoshio Okamoto, Angew. Chem. Int. Ed., 42, 1170-1172 (2003)
393. Enantioselective Photopinacolization of Benzophenone and Benzhydrol Intercalated in Mg-Al LDH Interlayers
Tetsuya Shichi, Yukiko Minamikawa, Naoto Yasuda, Naoya Yamada, Yoshio Okamoto, and Katsuhiko Takagi, Chem. Lett., 32, 240-241 (2003)
394. Solid-State Polymerization of Dibenzeofulvene Leading to a Copolymer with Oxygen
Tamaki Nakano, Osamu Nakagawa, Tohru Yade, and Yoshio Okamoto, Macromolecules, 36, 1433-1435 (2003)
395. Detection of Inorganic Species by Chemical Reaction Laser Desorption Ionization Mass Spectrometry
Kozo Matsumoto, Hiroharu Ajiro, Shigeki Habaue, and Yoshio Okamoto, Rapid Commun. Mass Spectrom., 17, 678-684 (2003)
396. Copper(I)-Catalyzed Asymmetric Oxidative Coupling Polymerization of 2,3-Dihydroxynaphthalene Using Bisoxazoline Ligands
Shigeki Habaue, Tomoaki Seko,
and Yoshio Okamoto, Macromolecules, 36, 2604-2608 (2003)
397. Revised Interpretation for N-Cyclohexylmaleimide Polymerization in the Presence of an Optically Active Cobalt(II) Complex: Polymerization Mediated by Anionic Species Formed through Monomer-Co(II) Complex-O2 Interaction
Tamaki Nakano, Tohru Yade,
and Yoshio Okamoto, Macromolecules, 36, 3498-3504 (2003)
398. Stereoselective Synthesis of (R,R)-, (S,S)-, and (R,S)-Poly(2,3-dihydroxy-1,4-naphthylene) Derivatives by Asymmetric Oxidative Coupling Polymerization
Shigeki Habaue, Tomoaki Seko, Masaya Isonaga, Hiroharu Ajiro, and Yoshio Okamoto, Polym. J., 35, 592-597 (2003)
399. Chemospecific Ring-opening Polymerization of α-Methylenemacrolides
Shigeki Habaue, Momoko Asai, Masatake Morita, Yoshio Okamoto, Hiroshi Uyama, and Shiro Kobayashi, Polymer, 44, 5195-5200 (2003)
400. Very Fast Enantioseparation in High-performance Liquid Chromatography Using Cellulose Tris(3,5-dimethylphenylcarbamate) Coated on Monolithic Silica Support
Bezhan Chankvetadze, Chiyo Yamamoto, and Yoshio Okamoto, Chem. Lett., 32, 850-851 (2003)
401. Knotaxanes-Rotaxanes with Knot as Stoppers
Oleg Lukin, Takateru Kubota, Yoshio Okamoto, Frauke Schelhase, Albena Yoneva, Walter M. Müller, and Fritz Vögtle, Angew. Chem. Int. Ed., 42, 4542-4545 (2003)
402. Separation of Racemic Compounds on Amylose and Cellulose Dimethylphenylcarbamate-coated Zirconia in HPLC
Jung Hag Park, Young Chul Whang, Yun Jung Jung, Yoshio Okamoto, Chiyo Yamamoto, Peter W. Carr, and Clayton V. McNeff, J. Sep. Sci., 26, 1331-1336 (2003)
403. Stereospecific Radical Polymerization of N-Triphenylmethylmethacrylamides Leading to Highly Isotactic Helical Polymers
Naohiro Hoshikawa, Yuji Hotta, and Yoshio Okamoto, J. Am. Chem. Soc., 125, 12380-12381 (2003)
404. Synthesis of Poly(1,4-naphthylene) bearing Crown Ether Side Chain by Asymmetric Oxidative Coupling Polymerization
Shigeki Habaue, Tomoaki Seko, and Yoshio Okamoto, Polymer, 44, 7377-7381 (2003)
405. Synthesis and Chiral Recognition Ability of Optically Active Poly{N[R-α-methoxycarbonylbenzyl]methacrylamide} with Various Tacticities by Radical Polymerization Using Lewis Acids
Kohei Morioka, Yoshikatsu Suito, Yutaka Isobe, Shigeki Habaue, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 41, 3354-3360 (2003)
406. Preparation and Chiral Recognition Ability of Cellulose 3,5-Dimethylphenylcarbamate Immobilized on Silica Gel through Radical Polymerization
Takateru Kubota, Chiyo Yamamoto, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 41, 3703-3712 (2003)
407. Picosecond Electron Transfer Dynamics in Polymer Systems in Solutions: Cellulose Tris(9-ethylcarbazolyl-3-carbamate) and Amylose Tris(9-ethylcarbazolyl-3-carbamate)
Sazzadur R. Khan, Akira Itaya, Hiroshi Miyasaka, Tadashi Okada, Chiyo Yamamoto, and Yoshio Okamoto, J. Photochem. and Photobio. A Chem., 161, 35-42 (2003)
408. High-performance Liquid Chromatographic Enantioseparation Using Chitin Carbamate Derivatives as Chiral Stationary Phases
Chiyo Yamamoto, Tomoko
Hayashi, and Yoshio Okamoto, J.
Chromatogr. A, 1021, 83-91 (2003)
409. Poly(2,7-di-n-pentyldibenzofulvene) Showing Chiroptical Properties in the Solid State Based Purely on a Chiral Conformation
Tamaki Nakano, Osamu Nakagawa, Masashi Tsuji, Mitsuru Tanikawa, Tohru Yade, and Yoshio Okamoto, Chem. Commun., 144-145 (2004)
410. Viscoelastic Behaviors and Molecular Motions of Highly Syndiotactic Poly(vinyl alcohol) Fibers
Yasuo Gotoh, Yoshitaka Nagara, Tamaki Nakano, Yoshio Okamoto, Yutaka Ohkoshi, and Masanobu Nagura, J. Polym. Sci. Part B: Polym. Phys., 42, 800-808 (2004)
411. RAFT Polymerization of N-Isopropylacrylamide in the Absence and Presence of Y(OTf)3: Simultaneous Control of Molecular Weight and Tacticity
Biswajit Ray, Yutaka Isobe, Kozo Matsumoto, Shigeki Habaue, Yoshio Okamoto, Masami Kamigaito, and Mitsuo Sawamoto, Macromolecules, 37, 1702-1710 (2004)
412. Anionic Polymerization of Novel Styrene Derivatives Bearing Various Amino Groups at ortho-Position
Hiroharu Ajiro, Shigeki Habaue, and Yoshio Okamoto, Polym. J., 36, 323-328 (2004)
413. Mechanism of Helix Induction on a Stereoregular Poly((4-carboxyphenyl)acetylene) with Chiral Amines and Memory of the Macromolecular Helicity Assisted by Interaction with Achiral Amines
Katsuhiro Maeda, Kazuhide Morino, Yoshio Okamoto, Takahiro Sato, and Eiji Yashima, J. Am. Chem. Soc., 126, 4329-4342 (2004)
414. Immobilization of Vinyl Polymer Chains on Macroporous Silica Gel by Atom Transfer Radical Polymerization and Surface Structure Control
Haruhiro Ajiro, Osamu Ikeshima, Shigeki Habaue, and Yoshio Okamoto, Koubunshi Ronbunshu, 61, 250-255 (2004) (Japanese)
415. Topologically Chiral Covalent Assemblies of Molecular Knots with Linear, Branched, and Cyclic Architectures
Oleg Lukin, Takateru Kubota, Yoshio Okamoto, Astrid Kaufmann, and Fritz Vögtle, Chem. Eur. J., 10, 2804-2810 (2004)
416. High-performance Liquid Chromatographic Enantioseparations on Capillary Columns Containing Monolithic Silica Modified with Cellulose Tris(3,5-dimethylphenylcarbamate)
Bezhan Chankvetadze, Chiyo Yamamoto, Nobuo Tanaka, Kazuki Nakanishi, and Yoshio Okamoto, J. Sep. Sci., 27, 905-911 (2004)
417. Synthesis of Polymer Chiral Helical Cavity by Molecular Imprinting Using Bifunctional Vinyl Monomers
Shigeki Habaue, Takamasa
Satonaka, Tamaki Nakano, and Yoshio Okamoto, Polymer, 45, 5095-5100
(2004)
418. Reversed-Phase Liquid Chromatographic Enantioseparation by Cycloalkylcarboxylates of Cellulose and Amylose
Takaharu Kubota, Chiyo Yamamoto, and Yoshio Okamoto, Chirality, 16, 309-313 (2004)
419. High-performance Liquid Chromatographic Enantioseparations on Monolithic Silica Columns Containing a Covalently Attached 3,5-Dimethylphenylcarbamate Derivative of Cellulose
Bezhan Chankvetadze, Tomoyuki Ikai, Chiyo Yamamoto, and Yoshio Okamoto, J. Chromatogr. A, 1042, 55-60 (2004)
420. Rational Synthesis of Multicyclic Bis[2]catenanes
Anca Bogdan, Myroslav O. Vysotsky, Tomoyuki Ikai, Yoshio Okamoto, and Volker Böhmer,
Chem. Eur. J., 10, 3324-3330 (2004)
421. Cellulose Derivative-based Beads as Chiral Stationary Phase for HPLC
Tomoyuki Ikai, Reiko Muraki, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto,
Chem. Lett., 33, 1188-1189 (2004)
422. Novel Initiating System for the Stereocontrolled Radical Polymerization of Acrylamides: Alkyl Bromide/Rare Earth Metal Triflate System
Biswajit Ray, Shigeki Habaue, Masami Kamigaito, and Yoshio Okamoto, Polym. J., 36, 728-736 (2004)
423. Phenylcarbamate Derivatives of Cellulose and Amylose Immobilized onto Sillica Gel as Chiral Stationary Phases for High-Performance Liquid Chromatography
Takateru Kubota, Chiyo Yamamoto, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 42, 4704-4710 (2004)
424. Bullvalene Trisepoxide and Its Stereospecific Rearrangement to 2,8,12-Trioxahexacyclo[8.3.0.03,904,605,1307,11]tridecane: Two New C3-Symmetrical Oligocycles with Propeller Chirality
Shelue Liang, Chi-Hung Lee,
Sergei I. Kozhushkov, Dmitri S. Yufit, Judith A. K. Howard, Kathrin Meindl,
Stephan Rühl, Chiyo Yamamoto, Yoshio Okamoto, Peter R. Schreiner, B.
Christopher Rinderspacher, and Armin de Meijere,
Chem. Eur. J., 11, 2012-2018 (2005)
425. Effect of Tacticity of Poly(N-isopropylacrylamide)on the Phase Separation Temperature of Its Aqueous Solutions
Biswajit Ray, Yoshio Okamoto, Masami Kamigaito, Mitsuo Sawamoto, Ken-ichi Seno, Shokyoku Kanaoka, and Sadahito Aoshima, Polym. J., 37, 234-237 (2005)
426. Enantioseparation by HPLC Using Phenylcarbonate, Benzoylformate, p-Toluenesulfonylcarbamate, and Benzoylcarbamates of Cellulose and Amylose as Chiral Stationary Phases
Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto, Chirality, 17, 299-304 (2005)
427. Synthesis, Chiroptical Properties, and Chiral Recognition Ability of Optically Active Polymethacrylamides Having Various Tacticities
Kohei Morioka, Yutaka Isobe, Shigeki Habaue, and Yoshio Okamoto, Polym. J., 37, 299-308 (2005)
428. Atom Transfer Radical Polymerization of Methyl Methacrylate in Fluoroalcohol: Simultaneous Control of Molecular Weight and Tacticity
Yutaka Miura, Toshifumi Satoh, Atsushi Narumi, Osamu Nishizawa, Yoshio Okamoto, and Toyoji Kakuchi, Macromolecules, 38, 1041-1043 (2005)
429. Stereochemically Stable Double-Helicate Dinuclear Complexes of Bis(dipyrromethene)s: A Chiroptical Study
Tabitha E. Wood, Nathan D. Dalgleish, Erin D. Power, Alison Thompson, Xiaoming Chen, and Yoshio Okamoto, J. Am. Chem. Soc., 127, 5740-5741 (2005)
430. Graft Polymerization of Styrene and Acrylates on the Prepolymer Having TEMPOL Residues
Yu Miura, Yutaka Isobe, Tetsuya Nakamura, Motoyuki Sugiura, and Yoshio Okamoto, Polym. J., 37, 617-624 (2005)
431. Asymmetric Radical Polymerization of N-Phenylmethacrylamides
Yuki Amano, and Yoshio Okamoto, Polym. J., 37, 629-632 (2005)
432. Xanthate-Mediated Radical Polymerization of N-Vinylpyrrolidone in Fluoroalcohols for Simultaneous Control of Molecular Weight and Tacticity
Decheng Wan, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto, Macromolecules, 38, 10397-10405 (2005)
433. Dinuclear Zinc(II) Double-Helicates of Homochirally Substituted Bis(dipyrromethene)s
Tabitha E. Wood, Avena C. Ross, Nathan D. Dalgleish, Erin D. Power, Alison Thompson, Xiaoming Chen, and Yoshio Okamoto, J. Org. Chem., 70, 9967-9974 (2005)
434. Influence of Vinyl Monomers and Temperature on Immobilization of Cellulose 3,5-Dimethylphenylcarbamate onto Silica Gel as Chiral Stationary Phases for High- Performance Liquid Chromatography
Xiaoming Chen, Chiyo Yamamoto, and Yoshio Okamoto, J. Chromatogr. A, 1104, 62-68 (2006)
435. High-performance Liquid Chromatographic Enantioseparations on Capillary Columns Containing Monolithic Silica Modified with Amylose Tris(3,5-dimethylphenylcarbamate)
Bezhan Chankvetadze, Chiyo Yamamoto, Masami Kamigaito, Nobuo Tanaka, Kazuki Nakanishi, and Yoshio Okamoto,
J. Chromatogr. A, 1110, 46-52 (2006)
436. Synthesis of Well-Defined Syndiotactic Poly(methyl methacrylate) with Low-Temperature Atom Transfer Radical Polymerization in Fluoroalcohol
Yutaka Miura, Toswhifumi Satoh, Atsushi Narumi, Osamu Nishizawa, Yoshio Okamoto, and Toyoji Kakuchi,
J. Polym. Sci. Part A: Polym. Chem., 44, 1436-1446 (2006)
437. Iron-Catalyzed Radical Polymerization of Acrylamides in the Presence of Lewis Acid for Simultaneous Control of Molecular Weight and Tacticity
Yuya Sugiyama, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto,
J. Polym. Sci. Part A:
Polym. Chem., 44,
2086-2098 (2006)
438. High-performance liquid chromatographic enantioseparations on capillary columns containing crosslinked polysaccharide phenylcarbamate derivatives attached to monolithic silica
Bezhan Chankvetadze, Takateru Kubota, Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, Nobuo Tanaka, Kazuki Nakanishi, and Yoshio Okamoto, J. Sep. Sci., 29, 1988-1995 (2006)
439. Enantioseparation Using Alkoxyphenylcarbamates of Cellulose and Amylose as Chiral Stationary Phase for High-Performance Liquid Chromatography
C. Yamamoto, S. Inagaki, and Y. Okamoto, J. Sep. Sci., 29, 915-923 (2006)
440. Stiffness and Conformational Transition of Poly{3-[(S)-2-methylbutoxy]phenyl isocyanate} in Dilute Solution
Kazuto Yoshiba, Ryota Hama, Akio Teramoto, Naotake Nakamura, Katsuhiro Maeda, Yoshio Okamoto, and Takahiro Sato, Macromolecules, 39, 3435-3440 (2006)
441. Syntheses and Properties of Enantiomerically Pure Higher (n ≥ 7) [n−2]Triangulanedimethanols and σ-[n]Helicenes
Armin de Meijere, Alexander F. Khlebnikov, Sergei I. Kozhushkov, Dmitrii S. Yufit, Olga V. Chetina, Judith A. K. Howard, Takuya Kurahashi, Kazutoshi Miyazawa, Daniel Frank, Peter R. Schreiner, B. Christopher Rinderspacher, Mari Fujisawa, Chiyo Yamamoto, and Yoshio Okamoto, Chem. Eur. J., , 12, 5697-5721 (2006)
442. Simultaneous Control of the Stereospecificity and Molecular Weight in the Ruthenium-Catalyzed Living Radical Polymerization of Methyl and 2-Hydroxyethyl Methacrylates and Sequential Synthesis of Stereoblock Polymers
Takuya Shibata, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto J. Polym. Sci. Part A: Polym. Chem., 44, 3609-3615 (2006)
443. Iodine Transfer Radical Polymerization of Vinyl Acetate in Fluoroalcohols for Simultaneous Control of Molecular Weight, Stereospecificity, and Regiospecificity
Kazuhiko Koumura, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto, Macromolecules, 39, 4054-4061 (2006)
444. One-pot synthesis of polysaccharide-3,5-dimethylphenylcarbamates having a random vinyl group for immobilization on silica gel as chiral stationary phases
Xiaoming Chen, Chiyo Yamamoto, and Yoshio Okamoto, J. Sep. Sci., 29, 1432-1439 (2006)
445. Living Cationic Polymerization of a Novel Bicyclic Conjugated Diene Monomer, Tetrahydroindene, and Its Block Copolymers with Vinyl Ether
Naomi Mizuno, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto, Macromolecules, 39, 5280-5285 (2006)
446. Preparation of HPLC Chiral Packing Materials Using Cellulose Tris(4-Methylbenzoate) for the Separation of Chrysanthemate Isomers
Chiyo Yamamoto, Kenji Yamada, Kahori Motoya, Yuichiro Kamiya, Masami Kamigaito, Yoshio Okamoto, and Tadatoshi Aratani, J. Polym. Sci. Part A: Polym. Chem., 44, 5087-5097 (2006)
447. Well-Defined Graft Copolymers of Methacrylate, Acrylate, and Styrene via Ruthenium-Catalyzed Living Radical Polymerization
Yu Miura, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto, Polym. J., 38, 930-939 (2006)
448. Helix-Sense–Selective Free Radical Polymerization of N-(Triphenylmethyl) methacrylamide Derivatives
A. K. M. Fakhrul AZAM, Masami Kamigaito, and Yoshio Okamoto, Polym. J., 38, 1035-1042 (2006)
449. Efficient Immobilization of Cellulose Phenylcarbamate Bearing Alkoxysilyl Group onto Silica Gel by Intermolecular Polycondensation and Its Chiral Recognition
Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto, Chem. Lett., 35, 1250-1251 (2006)
450. A Bicyclic Conjugated Diene Monomer, Tetrahydroindene, for Cationic Polymerization and a Novel Alicyclic Hydrocarbon Polymer with Heat Resistance
Naomi Mizuno, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 44, 6214-6225 (2006)
451. Helicity Induction in N-[(4-Butyl)triphenylmethyl]methacrylamide Sequence via Radical Copolymerization with Chiral Monomers
A.K.M. Fakhrul Azam, Masami Kamigaito, Masashi Tsuji, and Yoshio Okamoto, Polym. J., 38, 1173-1181 (2006)
452. Helix-Sense-Selective Radical Polymerization of N-(Triphenylmethyl)methacrylamides and Properties of the Polymers
Naohiro Hoshikawa, Chiyo Yamamoto, Yuji Hotta, and Yoshio Okamoto, Polym. J., 38, 1258-1266 (2006)
453. Cellulose Dimethylphenylcarbamate-bonded Carbon-clad Zirconia for Chiral Separation in High Performance Liquid Chromatography
Sang Hyum Kwon, Yoshio Okamoto, Chiyo Yamamoto, Wonjo Cheong, Myeonghee Moon, and Jung Hag Park, Anal. Sci., 22, 1525-1529 (2006)
454. Bridging Rotaxanes’ Wheels-Cyclochiral Bonnanes
Motkuri Radha, Kishan, Amir Parham, Frauke Schelhase, Albena Yoneva, Gabriele Silva, Xiaoming Chen, Yoshio Okamoto, and Fritz Vögtle, Angew. Chem. Int. Ed., 45, 7296-7299 (2006)
455. 4,7,11-Triheterotrishomocubanes–Propeller-Shaped Highly Symmetrical Chiral Molecules Derived from Barrelene
Sergei I. Kozhushkov, Thomas Preuß, Dmitrii S. Yufit, Judith A. Howard, Kathrine Meindl, Stephan Rühl, Chiyo Yamamoto, Yoshio Okamoto, Peter R. Schreiner, B. Christopher Rinderspacher, and Armin de Meijere, Eur. J. Org. Chem., 2590-2600 (2006)
456. Synthesis and Properties of the First Möbius Annulenes
Dariush Ajami, Kristen Hess, Felix Köhler, Christian Näther, Oliver Oeckler, Arndt Simon, Chiyo Yamamoto, Yoshio Okamoto, and Rainer Herges, Chem. Eur. J., 45, 5434-5445 (2006)
457. Stereogradient Polymers by Ruthenium-Catalyzed Stereospecific Living Radical Copolymerization of Two Monomers with Different Stereospecificities and Reactivities
Yu Miura, Takuya Shibata, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto, J. Am. Chem. Soc., 128, 16026-16027 (2006)
458. Long Chain-Substituted and Triply Functionalized Molecular Knots –Synthesis, Topological Chirality and Monolayer Formation
Athanasia Böhmer, Jens Brüggemann, Astrid Kaufmann, Albena Yoneva, Sonja Müller, Walter M. Müller, Ute Müller, Frank W. Vergeer, Lifeng Chi, Luisa De Cola, Harald Fuchs, Xiaoming Chen, Takateru Kubota, Yoshio Okamoto, and Fritz Vögtle,
Eur. J. Org. Chem., 45-52 (2007)
459. Catalytic Asymmetric Synthesis and Optical Resolution of Planar Chiral Rotaxane
Yoshimasa Makita, Nobuhiro Kihara, Naohisa Nakakoji, Toshikazu Takata, Shinji Inagaki, Chiyo Yamamoto, and Yoshio Okamoto, Chem. Lett. , 36, 162-163 (2007)
460. AXBAX-Type Block-Graft Polymers with Middle Soft Segments and Outer Hard Graft Chains by Ruthenium-Catalyzed Living Radical Polymerization: Synthesis and Characterization
Yu Miura, Kotaro Satoh, Masami Kamigaito, Yoshio Okamoto, Takeshi Kaneko, Hiroshi Jinnai, and Syuji Kobukata, Macromolecules, 40, 465-473 (2007)
461. Asymmetric Radical Polymerization and Copolymerization of N-(1-Phenyldibenzosuberyl)methacrylamide and Its derivative Leading to Optically Active Helical Polymers
A. K. M. Fakhrul Azam, Masami Kamigaito, and Yoshio Okamoto, J. Polym. Sci. Part A: Polym. Chem., 45, 1304-1315 (2007)
462. Chiral (-)-DIOP Ruthenium Complexes for Asymmetric Radical Additional and Living Radical Polymerization Reactions
Yusuke Iizuka, Zhaoming Li, Kotaro Satoh, Masami Kamigaito, Yoshio Okamoto, Jun-ichi Ito, and Hisao Nishiyama, Eur. J. Org. Chem., 782-791 (2007)
463. Ordered Arrays of Organometallic Iridium Complexes with long Alkyl Chains on Graphite
Joe Otsuki, Tsubasa Tokimoto, Yuki Noda, Tomohiro Yano, Takeshi Hasegawa, Xiaoming Chen, and Yoshio Okamoto, Chem. Eur. J, 13, 2311-2319 (2007)
464. Direct enantiomeric separations of tris(2-phenylpyridine) iridium (III) complexes on polysaccharide derivative-based chiral stationary phases
Xiaoming Chen, Yoshio Okamoto, Tomohiro Yano, Joe Otsuki, J. Sep. Sci., 30, 713-716 (2007)
465. Preparation and chiral recognition ability of crosslinked beads of polysaccharide derivatives
Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto, J. Sep. Sci., 30, 971-978 (2007)
466. Calix[4]arene-Based Bis[2]catenanes: Synthesis and Chiral Resolution
Olena Molokanova, Anca Bogdan, Myroslav O. Vysotsky, Michael Bolte, Tomoyuki Ikai, Yoshio Okamoto, and Volker Böhmer,Chem. Eur. J., 13, 6157-6170 (2007)
467. Helix-Sense–Selective Anionic Polymerization of a Bulky Methacrylamide Using Organozincates Having Sugar Residues
Masashi Tsuji, A. K. M. Fakhrul Azam, Masami Kamigaito, and Yoshio Okamoto, Macromolecules, 40, 3518-3520 (2007)
468. Immobilization of polysaccharide derivatives onto silica gel: Facile synthesis of chiral packing materials by means of intermolecular polycondensation of triethoxysilyl groups
Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto, J. Chromatogr. A, 1157, 151-158 (2007)
469. AXBAX-Type Block-Graft Polymers with Soft Methacrylate Middle Segments and Hard Styrene Outer Grafts: Synthesis, Morphology, and Mechanical Properties
Yu Miura, Takeshi Kaneko, Kotaro Satoh, Masami Kamigaito, Hiroshi Jinnai, and Yoshio Okamoto, Chem. Asian J., 2, 662-672 (2007)
470. Enantioseparation Using Urea- and Imide-Bearing Chitosan Phenylcarbamate Derivatives as Chiral Stationary Phases for High-Performance Liquid Chromatography
Chiyo Yamamoto, Mari Fujisawa, Masami Kamigaito, and Yoshio Okamoto, Chirality, 20, 288-294 (2008)
471. Synthesis and Chiral Recognition of Novel Regioselectively Substituted Amylose Derivatives
Shunsuke Kondo, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto, Chem. Lett., 37, 558-559 (2008)
472. Organic-Inorganic Hybrid Materials for Efficient Enantioseparation Using Cellulose 3,5-Dimethylphenylcarbamate and Tetraethyl Orthosilicate
Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto, Chem. Asian J., 3, 1494-1499 (2008)
473. Immobilization of cellulose phenylcarbamate onto silica gel via
intermolecular polycondensation of triethoxysilyl groups introduced with
(3-glycidoxypropyl)triethoxysilane
Shouwan Tang, Yoshio Okamoto, J. Sep. Sci., 31, 3133-3138 (2008)
474. 1,1’-Bi(trishomobarrelenyl) – Synthesis and Chiroptic Properties
Armin de Meijere, Karsten Rauch, Bernhard Schrader, Farina
Brackmann, Roland Pfoh, Stephan Rühl, Yasunaka Katoh, Yoshio Okamoto,
Matthew D Wodrich, Clémence Corminboeuf, and Peter R. Schreiner,
Eur. J. Org. Chem., 1048-1052 (2009)
475. Stereogradient Polymers Formed by Controlled/Living Radical
Polymerization of Bulky Methacrylate Monomers
Kenji Ishitake, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto, Angew. Chem. Int. Ed., 48, 1991-1994 (2009)
476.
Preparation
and HPLC application of chiral stationary phase from
4-tert-butylphenylcarbamates of cellulose and amylose immobilized onto silica
gel
Jun-qing Li, Tomoyuki Ikai, and Yoshio Okamoto, J. Sep. Sci., 32, 2885-2891 (2009)
477. Enantioseparation using amylose esters as chiral stationary phases
for high-performance liquid chromatograhy
Yuri Sugiura, Chiyo Yamamoto, Tomoyuki Ikai, Masami Kamigaito, and
Yoshio Okamoto, Polym. J., 42,
31-36 (2010)
478. Immobilization of 3,5-dimethylphenylcarbamates of cellulose and
amylose onto silica gel using (3-glycidoxypropyl)triethoxysilane as linker
Shouwan Tang, Tomoyuki Ikai, Masashi Tsuji, and Yoshio Okamoto, J. Sep. Sci., 33, 1255-1263 (2010)
479. Immobilization and Chiral Recognition of 3,5-Dimethylphenylcarbamates of Cellulose and Amylose Bearing 4-(Trimethoxysilyl)phenylcarbamate Groups
Shouwan Tang, Tomoyuki Ikai, Masashi Tsuji, and Yoshio Okamoto, Chirality, 22, 165-172 (2010)
480. Synthesis and chiral recognition of novel amylose derivatives containing regioselectively benzoate and phenylcarbamate groups
Jun Shen, Tomoyuki Ikai, and Yoshio Okamoto, J. Chromatogr. A, 1217, 1041-1047 (2010)
481. Synthesis and Immobilization of Amylose Derivatives Bearing a 4-tert-Butylbenzoate Group at the 2-Position and 3,5-Dichlorophenylcarbamate/3-(Triethoxysilyl)propylcarbamate Groups at 3- and 6-Positions as Chiral Packing Material for HPLC
Jun Shen, Tomoyuki Ikai, Xiande Shen, and Yoshio Okamoto, Chem. Lett., 39, 442-444 (2010)
482. Helical Structure of Liquid Crystalline Poly(N-((4-n-butylphenyl)diphenylmethyl) methacrylamide)
Kanji Nagai, Kento Okoshi, Shin-ichiro Sakurai, Motonori Banno, A. K. M. Fakhrul Azam, Masami Kamigaito, Yoshio Okamoto, and Eiji Yashima, Macromolecules, 43, 7386-7390 (2010)
483. Chiral recognition ability of cellulose derivatives bearing pyridyl and bipyridyl residues as chiral stationary phases for high-performance liquid chromatography
Yasunaka Katoh, Yasutaka Tsujimoto, Chiyo Yamamoto, Tomoyuki Ikai, Masami Kamigaito, and Yoshio Okamoto, Polym. J., 43, 84-90 (2011)
484. Preparation and chiral recognition in HPLC of cellulose 3,5-dichlorophenylcarbamates immobilized onto silica gel
Haitao Qu, Junqing Li, Guangshun Wu, Jun Shen, Xiande Shen, and Yoshio Okamoto, J. Sep. Sci., 34, 536-541 (2011)
485. Preparation of Highly Hindered Polyenes with tert-Butyl Groups in Internal Positions
Markus Betz, Henning Hopf, Ludger Ernst, Peter G. Jones, and Yoshio Okamoto, Chem. Eur. J., 17, 231-247 (2011)
486. Synthesis of Cellulose Carbamate Derivatives Bearing Phenyl or 4- Methypheny or 4- Chlorophenyl Groups at 2- and 3- Positions and 3 5- Dichlorophenyl Group at 6- Position and Their Chiral Recognition as Chiral Packing Materials for High Performance Liquid Chromatography
Haitao Qu, Junqing Li, Jun Shen, Xiande Shen, and Yoshio Okamoto, Chinese J. Anal. Chem., 39, 461-465 (2011) (Chinese)
487. Synthesis and Chiral Recognition Ability of a Poly(phenylenevinylene)-Encapsulated Amylose Derivative
Kazumi Tajima, Nor Syahidah Md Sam, Tomoyuki Ikai, Yoshio Okamoto, and Eiji Yashima, Bull. Chem. Soc. Jpn., 84, 741-747 (2011)
488. Effects of Tacticity and Molecular Weight of Poly(N-isopropylacrylamide) on Its Glass Transition Temperature
Chandra Sekhar Biswas, Vijay Kumar Patel, Niraj Kumar Vishwakarma, Vimal K. Tiwari, Biswajit Maiti, Pralay Maiti, Masami Kamigaito, Yoshio Okamoto, and Biswajit Ray, Macromolecules, 44, 5822-5824 (2011)
489. Immobilization and Chromatographic Evaluation of Novel Regioselectively Substituted Amylose-based Chiral Packing Materials for HPLC
Jun Shen, Pengfei Li, Shuangyan Liu, Xiande Shen, and Yoshio Okamoto, Chirality, 23, 878-886 (2011)
490. Stereospecific Free Radical and RAFT Polymerization of Bulky Silyl Methacrylates for Tacticity and Molecular Weight Controlled Poly(methacrylic acid)
Kenji Ishitake, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto, Macromolecules, 44, 9108-9117 (2011)
491. From-syndiotactic-to-isotactic stereogradient methacrylic polymers by RAFT copolymerization of methacrylic acid and its bulky esters
Kenji Ishitake, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto,
Polym. Chem., 3, 1750-1757 (2012)
492. Controlled synthesis and chiral recognition of immobilized cellulose and amylose tris(cyclohexylcarbamate)s/3-(triethoxysilyl)propylcarbamates as chiral packing materials for high-performance liquid chromatography
Jun Shen, Shuangyan Liu, Pengfei Li, Xiande Shen, and Yoshio Okamoto,
J. Chromatogr. A, 1246, 137-144 (2012)
493. Kinetic Hydrate Inhibition of Poly(N-isopropylmethacrylamide)s with Different Tacticities
Pei Cheng Chua, Malcolm A. Kelland, Kenji Ishitake, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto,
Energy & Fuels, 26, 3577-3585 (2012)
494. Tribenzotriquinacene: A Versatile Synthesis and C3-Chiral Platforms
Georgios Markopoulos, Lars Henneicke, Jun Shen, Yoshio Okamoto, Peter G. Jones, and Henning Hopf,
Angew. Chem. Int. Ed., 51, 12884-12887 (2012)
495. Influence of stereoregularity and linkage groups on chiral recognition of poly(phenylacetylene) derivatives bearing L-leucine ethyl ester pendants as chiral stationary phases for HPLC
Chunhong Zhang, Fangbin Liu, Yufa Li, Xiande Shen, Xiaodong Xu, Ryosuke Sakai, Toshifumi Satoh, Toyoji Kakuchi, and Yoshio Okamoto,
J. Polym. Sci. Part A: Polym. Chem., 51, 2271-2278 (2013)
496. Asymmetric anionic polymerization of tris(trimethylsilyl)silyl methacrylate: a highly isotactic helical chiral polymer
Kenji Ishitake, Kotaro Satoh, Masami Kamigaito, and Yoshio Okamoto,
Polym. J., 45, 676-680 (2013)
497. Enantioseparation using ortho- or meta-substituted phenylcarbamates of amylose as chiral stationary phases for high-performance liquid chromatography
Jun Shen, Yongqiang Zhao, Shinji Inagaki, Chiyo Yamamoto, Yue Shen, Shuangyan Liu, and Yoshio Okamoto,
J. Chromatogr. A, 1286, 41-46 (2013)
498. Stereospecific radical polymerization of optically active (meth)acrylamide – Study on the mechanism of stereocontrol
Xiaodong Xu, Yuanqi Zhu, Han Li, Siwei Feng, Haicun Dai, Xiande Shen, Jianwei Bai, Lili Zhang, and Yoshio Okamoto,
Acta Polymerica Sinica, 286-292 (2013) (Chinese)
499. Synthesis and chiral recognition of polysaccharide carbamate derivatives bearing regioselective substituents
Jun Shen, Shuangyan Liu, Yongqiang Zhao, Xiande Shen, and Yoshio Okamoto,
Polymerica Sinica, 293-299 (2013) (Chinese)
500. Chiral recognition of helical poly(phenylacetylene) derivatives bearing L-amino acid ethyl ester pendants
Chunhong Zhang, Hailun Wang, Fangbin Liu, Xiande Shen, Lijia Liu, Ryosuke Sakai, Toshifumi Satoh, Toyoji Kakuchi, and Yoshio Okamoto,
Acta Polymerica Sinica, 811-816 (2013) (Chinese)
501. Synthesis of Helical Poly(phenylacetylene)s with Amide Linkage Bearing L-Phenylalanine and L-Phenylglycine Ethyl Ester Pendants and Their Applications as Chiral Stationary Phases for HPLC
Chunhong Zhang, Hailun Wang, Qianqian Geng, Taotao Yang, Lijia Liu, Ryosuke Sakai, Toshifumi Satoh, Toyoji Kakuchi, and Yoshio Okamoto,
Macromolecules, 46, 8406−8415 (2013)
502. Synthesis and Chiral Recognition Ability of Chitosan Derivatives with Different 4-Chlorophenylcarbamate-Urea Structures
Lili Zhang, Jun Shen, Wenli Zuo, and Yoshio Okamoto,
Chem. Lett., 43, 92–94 (2014)
503. Design and synthesis of the first triply twisted Möbius annulene
Gaston R. Schaller, Filip Topić, Kari Rissanen, Yoshio Okamoto, Jun Shen, and Rainer Herges,
Nature Chem., 6, 608-613 (2014)
504. Diazocines on Molecular Platforms
Tobias Tellkamp, Jun Shen, Yoshio Okamoto and Rainer Herges,
Eur. J. Org. Chem., 5456-5461 (2014)
505. Synthesis of chitosan 3,6-diphenylcarbamate-2-urea derivatives and their applications as chiral stationary phases for high-performance liquid chromatography
Lili Zhang, Jun Shen, Wenli Zuo, and Yoshio Okamoto,
J. Chromatogr. A, 1365, 86-93 (2014)
506. Synthesis and Chiral Recognition of Helical Poly(phenylacetylene)s Bearing L-Phenylglycinol and its Phenylcarbamates as Pendants
Chunhong Zhang, Hailun Wang, Taotao Yang, Rui Ma, Lijia Liu, Ryosuke Sakai, Toshifumi Satoh, Toyoji Kakuchi, and Yoshio Okamoto,
J. Polym. Sci. Part A: Polym. Chem., 53, 809-821 (2015)
507. Influence of Helical Structure on Chiral Recognition of Poly(phenylacetylene)s Bearing Phenylcarbamate Residues of L-Phenylglycinol and Amide Linage as Pendants
Chunhong Zhang, Rui Ma, Hailun Wang, Ryosuke Sakai, Toshifumi Sato, Toyoji Kakuchi, Liu Lijia, and Yoshio Okamoto,
Chirality, 27, 500-506 (2015)
508. Synthesis and Enantioseparation Ability of Xylan Bisphenylcarbamate Derivatives as Chiral Stationary Phases in HPLC
Geng Li, Jun Shen, Qiang Li, and Yoshio Okamoto,
Chirality, 27, 518-522 (2015)
509. Study of the effect of isotacticity on some physical properties of poly(N-isopropylacrylamide)
Chandra Sekhar Biswas, Kheyanath Mitra, Shikha Singh, Kalyan Ramesh, Nira Misra, Biswajit Maiti, Amiya Kumar Panda, Pralay Maiti, Masami Kamigaito, Yoshio Okamoto, and Biswajit Ray,
Colloid Polym. Sci., 293, 1749-1757 (2015)
510. Synthesis and chiral recognition of amylose derivatives bearing regioselectively phenylcarbamate substituents at 2,6- and 3-positions for high-performance liquid chromatography
un Shen, Geng Li, Zhongzheng Tang, and Yoshio Okamoto,
J. Chromatogr. A, 1467, 199-205 (2016)
511. Enantioseparation Using Cellulose Tris(3,5-dimethylphenylcarbamate) as Chiral Stationary Phase for HPLC: Influence of Molecular Weight of Cellulose
Yuji Okada, Chiyo Yamamoto, Masami Kamigaito, Yuan Gao, Jun Shen, and Yoshio Okamoto,
Molecules, 21, 1484-1493 (2016)
512. Temperature-Triggered Switchable Helix-Helix Inversion of Poly(phenylacetylene) Bearing L-Valine Ethyl Ester Pendants and Its Chiral Recognition Ability
Yanli Zhou, Chunhong Zhang, Yuan Qiu, Lijia Liu, Taotao Yang, Hongxing Dong, Toshifumi Satoh, and Yoshio Okamoto,
Molecules, 21, 1583-1596 (2016)
513. Studies on Preparation and Chiral Recgnition of 2-N-phthaloyl Chitosan-based Chiral Stationary Phases
Lili Zhang, Jun Shen, and Yoshio Okamoto,
Acta Polymerica Sinica, 1555-1562 (2016) (Chinese)