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in English

Published papers

82. One-Handed Helical Tubular Ladder Polymers for Chromatographic Enantioseparation
W. Zheng, K. Oki, R. Saha, Y. Hijikata, E. Yashima, and T. Ikai
Angew. Chem., Int. Ed. (2023) DOI: 10.1002/anie.202218297.
81. Amplification of Macromolecular Helicity of Poly(biphenylylacetylene)s Composed of a Small Amount of Chiral [5]Helicene Units
T. Ikai, S. Anzai, K. Oki, and E. Yashima
J. Polym. Sci. (2023) DOI: 10.1002/pol.20220658.
Special Issue in honor of the 65th birthday of Prof. Takuzo Aida
80. Chiral and Achiral Pendant-Bound Poly(biphenylylacetylene)s Bearing Amide and/or Carbamate Groups: One-Handed Helix Formations and Chiral Recognition Abilities
T. Ikai, S. Okuda, M. Aizawa, and E. Yashima
Macromolecules, 55, 7023-7031 (2022) DOI: 10.1021/acs.macromol.2c01362
79. Catalytic One-Handed Helix Induction and Subsequent Static Memory of Poly(biphenylylacetylene)s Assisted by a Small Amount of Carboxy Groups Introduced at the Pendants
T. Ikai, S. Takeda, and E. Yashima
ACS Macro Lett., 11, 525-531 (2022) DOI: 10.1021/acsmacrolett.2c00136 (Open Access)
78. Consecutively Fused Single-, Double-, and Triple-Expanded Helicenes
W. Zheng, T. Ikai, K. Oki, and E. Yashima
Natural Sci., 2, e20210047 (2022) DOI: 10.1002/ntls.20210047 (Open Access)
Video abstract is available online: https://onlinelibrary.wiley.com/doi/10.1002/ntls.20210047
77. Supramolecular Helical Assemblies of Dirhodium(II) Paddlewheels with 1,4-Diazabicyclo[2.2.2]octane: A Remarkable Substituent Effect on the Helical Sense Preference and Amplification of the Helical Handedness Excess of Metallo-Supramolecular Helical Polymers
S. Okuda, N. Ousaka, T. Iwata, R. Ishida, A. Urushima, N. Suzuki, S. Nagano, T. Ikai, and E. Yashima
J. Am. Chem. Soc., 144, 2775-2792 (2022) DOI: 10.1021/jacs.1c12652 (Open Access)
76. Macromolecular Helicity Induction and Static Helicity Memory of Poly(Biphenylylacetylene)s Bearing Aromatic Pendant Groups and Their Use as Chiral Stationary Phases for High-Performance Liquid Chromatography
T. Ikai, S. Okuda, and E. Yashima
Chirality, 34, 306-316 (2022) DOI: 10.1002/chir.23399
Special Issue in honor of the 80th birthday of Prof. Yoshio Okamoto
75. Emergence of Highly Enantioselective Catalytic Activity in a Helical Polymer Mediated by Deracemization of Racemic Pendants
T. Ikai, M. Ando, M. Ito, R. Ishidate, N. Suzuki, K. Maeda, and E. Yashima
J. Am. Chem. Soc., 143, 12725-12735 (2021) DOI: 10.1021/jacs.1c05620
74. Synthesis of Single-Handed Helical Spiro-Conjugated Ladder Polymers through Quantitative and Chemoselective Cyclizations
W. Zheng, T. Ikai, and E. Yashima
Angew. Chem., Int. Ed., 60, 11294-11299 (2021) DOI: 10.1002/anie.202102885
Selected as VIP paper
73. Water-Mediated Reversible Control of Three-State Double-Stranded Titanium(IV) Helicates
N. Ousaka, M. Itakura, A. Nagasaka, M. Ito, T. Hattori, D. Taura, T. Ikai, and E. Yashima
J. Am. Chem. Soc., 143, 4346-4358 (2021) DOI: 10.1021/jacs.0c13351
72. One-Step Simultaneous Synthesis of Circularly Polarized Luminescent Multiple Helicenes Using a Chrysene Framework
T. Ikai, S. Yamakawa, N. Suzuki, and E. Yashima
Chem. Asian J., 16, 769-774 (2021) DOI: 10.1002/asia.202100035
Selected as Front Cover
71. Racemic Monomer-Based One-Handed Helical Polymer Recognizes Enantiomers through Auto-Evolution of Its Helical Handedness Excess
T. Ikai, T. Kurake, S. Okuda, K. Maeda, and E. Yashima
Angew. Chem., Int. Ed., 60, 4625-4632 (2021) DOI: 10.1002/anie.202014946
Selected as VIP paper and Frontispiece
70. Chiral Amplification of Supramolecular Coassemblies of Chiral and Achiral Acylhydrazine-Functionalized Biphenyls and Their Copolymers
T. Ikai, S. Kawabata, S. Okuda, N. Ousaka, and E. Yashima
Polym. J., 53, 1475-1480 (2021) DOI: 10.1038/s41428-021-00550-7
69. Cellulose Phenylcarbamate-Derived Hybrid Bead-Type Chiral Packing Materials for Efficient Chiral Recognition
G. Li, X. Dai, Y. Min, C. Yu, T. Ikai, L. Zhang, J. Shen, and Y. Okamoto
Cellulose, 28, 347-358 (2021) DOI: 10.1007/s10570-020-03514-x
68. Peripherally Donor-Installed 7,8-Diaza[5]helicenes as a Platform for Helical Luminophores
Y. Takeda, P. Data, B. Esser, Y. Ikari, T. Kaihara, S. Goto, M. Bovenkerk, D.C. Grenz, M. Ferreira, P. Stachelek, T. Yoshida, T. Ikai, N. Tohnai, and S. Minakata
Synthesis, 53, 1584-1596 (2020) DOI: 10.1055/a-1343-5810
67. Chiral Guest-Induced Catalytic Deracemization of a Spiroborate-Based Double-Stranded Helicate Bearing a Bisporphyrin Unit with Acids
M. Ito, T. Ikai, S. Yamamoto, D. Taura, N. Ousaka, and E. Yashima
Chem. Lett., 49, 1030-1033 (2020) DOI: 10.1246/cl.200352
Selected as Editorfs Choice and Inside Cover
66. Helical Assemblies of One-Dimensional Supramolecular Polymers Composed of Helical Macromolecules: Generation of Circularly Polarized Light Using an Infinitesimal Chiral Source
T. Ikai, M. Okubo, and Y. Wada
J. Am. Chem. Soc., 142, 3254-3261 (2020) DOI: 10.1021/jacs.9b13584
65. Catalytic One-Handed Helix-Induction and Memory of Amphiphilic Poly(Biphenylylacetylene)s in Water
T. Ikai, K. Mizumoto, R. Ishidate, W. R. Kitzmann, R. Ikeda, C. Yokota, K. Maeda, and E. Yashima
Giant, 2, 100016 (2020) DOI: 10.1016/j.giant.2020.100016
Highlighted in Giant, 2, 10015 (2020) by Prof. R.-M. Ho.
64. Helix-Sense-Selective Encapsulation of Helical Poly(lactic acid)s within a Helical Cavity of Syndiotactic Poly(methyl methacrylate) with Helicity Memory
T. Ikai, S. Kawabata, F. Mamiya, D. Taura, N. Ousaka, and E. Yashima
J. Am. Chem. Soc., 142, 21913-21925 (2020) DOI: 10.1021/jacs.0c11204
Selected as Supplementary Cover
63. Chiral/Achiral Copolymers of Biphenylylacetylenes Bearing Various Substituents: Chiral Amplification through Copolymerization Followed by Enhancement/Inversion and Memory of the Macromolecular Helicity
T. Ikai, R. Ishidate, K. Inoue, J. Kaygisiz, K. Maeda, and E. Yashima
Macromolecules, 53, 973-981 (2020) DOI: 10.1021/acs.macromol.9b02727
62. Optically Active Triptycenes Containing Hexa-peri-Hexabenzocoronene Units
Y. Wada, K. Shinohara, and T. Ikai
Chem. Commun., 55, 11386-11389 (2019) DOI: 10.1039/C9CC06025A
61. One-Step Synthesis of One-Dimensional Supramolecular Assemblies Composed of Helical Macromolecular Building Blocks
Y. Wada, K. Shinohara, H. Asakawa, S. Matsui, T. Taima, and T. Ikai
J. Am. Chem. Soc., 141, 13995-14002 (2019) DOI: 10.1021/jacs.9b07417
60. Helicity Induction and Memory Effect in Poly(biphenylylacetylene)s Bearing Various Functional Groups and Their Use as Switchable Chiral Stationary Phases for HPLC
R. Ishidate, T. Sato, T. Ikai, S. Kanoh, E. Yashima, and K. Maeda
Polym. Chem., 10, 6260-6268 (2019) DOI: 10.1039/C9PY01425J
Selected as Inside Front Cover
59. Triptycene-Based Ladder Polymers with One-Handed Helical Geometry
T. Ikai, T. Yoshida, K. Shinohara, T. Taniguchi, Y. Wada, and T.M. Swager
J. Am. Chem. Soc., 141, 4696-4703 (2019) DOI: 10.1021/jacs.8b13865
58. Synthesis of Helical ƒÎ-Conjugated Polymers Bearing Pyridine N-Oxide Pendants and Asymmetric Allylation of Aldehydes in the Helical Cavity
T. Ikai and T. Yoshida
Org. Biomol. Chem., 17, 8537-8540 (2019) DOI: 10.1039/C9OB01828J
57. Synthesis of a One-Handed Helical Polythiophene: A New Approach Using an Axially Chiral Bithiophene with a Fixed Syn-Conformation
T. Ikai, K. Takayama, Y. Wada, S. Minami, C. Apiboon, and K. Shinohara
Chem. Sci., 10, 4890-4895 (2019) DOI: 10.1039/C9SC00342H
56. Helicity Induction and Its Static Memory of Poly(biphenylylacetylene)s Bearing Pyridine N-Oxide Groups and Their Use as Asymmetric Organocatalysts
M. Ando, R. Ishidate, T. Ikai, K. Maeda, and E. Yashima
J. Polym. Sci., Part A: Polym. Chem., 57, 2481-2490 (2019) DOI: 10.1002/pola.29501
55. Dithiocarbamate-Modified Cellulose Resins: A Novel Adsorbent for Selective Removal of Arsenite from Aqueous Media
K. Nakakubo, H. Hasegawa, M. Ito, K. Yamazaki, M. Miyaguchi, F.B. Biswas, T. Ikai, and K. Maeda
J. Hazard. Mater., 380, 120816 (2019) DOI: 10.1016/j.jhazmat.2019.120816
54. Direct Detection of Minute- and Crypto-chirality of Tertiary and Quaternary Hydrocarbons and Isotopically Chiral Compounds by a Helical Polyacetylene through Chiral Amplification and Memory
K. Maeda, D. Hirose, N. Okoshi, K. Shimomura, Y. Wada, T. Ikai, S. Kanoh, and E. Yashima
J. Am. Chem. Soc., 140, 3270-3276 (2018) DOI: 10.1021/jacs.7b10981
Selected as Front Cover and highlighted in JACS Spotlights.
53. Circularly Polarized Luminescent Triptycene-Based Polymers
T. Ikai, T. Yoshida, S. Awata, Y. Wada, K. Maeda, M. Mizuno, and T.M. Swager
ACS Macro Lett., 7, 364-369 (2018) DOI: 10.1021/acsmacrolett.8b00106
52. Chiral Amplification in ƒÎ-Conjugated Helical Polymers with Circularly Polarized Luminescence
T. Ikai, S. Shimizu, S. Awata, and K. Shinohara
Macromolecules, 51, 2328|2334 (2018) DOI: 10.1021/acs.macromol.8b00229
51. Optically Active Distorted Cyclic Triptycenes: Chiral Stationary Phases for HPLC
T. Ikai, N. Nagata, S. Awata, Y. Wada, K. Maeda, M. Mizuno, and T.M. Swager
RSC Adv., 8, 20483-20487 (2018) DOI: 10.1039/C8RA04434A
50. Helicity Control of ƒÎ-Conjugated Foldamers Containing D-Glucose-Based Single Enantiomeric Units as a Chiral Source
T. Ikai, S. Minami, S. Awata, S. Shimizu, T. Yoshida, M. Okubo, and K. Shinohara
Polym. Chem., 9, 5504-5510 (2018) DOI: 10.1039/C8PY01436A
49. Synthesis of a Helical ƒÎ-Conjugated Polymer with Dynamic Hydrogen-Bonded Network in the Helical Cavity and Its Circularly Polarized Luminescence Property
T. Ikai, S. Awata, and K. Shinohara
Polym. Chem., 9, 1541-1546 (2018) DOI: 10.1039/C7PY01867C
Selected as Front Cover
48. Static Memory of Enantiomeric Helices Induced in a Poly(biphenylylacetylene) by a Single Enantiomer Assisted by Temperature- and Solvent-Driven Helix Inversion
K. Maeda, K. Shimomura, T. Ikai, S. Kanoh, and E. Yashima
Macromolecules, 50, 7801-7806 (2017) DOI: 10.1021/acs.macromol.7b01955
47. Chromatographic Enantioseparation by Poly(biphenylylacetylene) Derivatives with Memory of Both Axial Chirality and Macromolecular Helicity
R. Ishidate, T. Ikai, S. Kanoh, E. Yashima, and K. Maeda
Chirality, 29, 120-129 (2017) DOI: 10.1002/chir.22687
Selected as Front Cover
46. Chiral Triptycene-Pyrene ƒÎ-Conjugated Chromophores with Circularly Polarized Luminescence
T. Ikai, Y. Wada, S. Awata, C. Yun, K. Maeda, M. Mizuno, and T.M. Swager
Org. Biomol. Chem., 15, 8440-8447 (2017) DOI: 10.1039/C7OB02046E
45. A Cellulose-Based Chiral Fluorescent Sensor for Aromatic Nitro Compounds with Central, Axial and Planar Chirality
T. Ikai, D. Suzuki, K. Shinohara, K. Maeda, and S. Kanoh
Polym. Chem., 8, 2257-2265 (2017) DOI: 10.1039/C7PY00285H
44. Helical Folding of ƒÎ-Conjugated Polymers Bearing Glucose-Linked Biphenyl Units in the Main Chain: Application to Circularly Polarized Luminescence Materials
T. Ikai, S. Shimizu, T. Kudo, K. Maeda, and S. Kanoh
Bull. Chem. Soc. Jpn., 90, 910-918 (2017) DOI: 10.1246/bcsj.20170122
43. Cellulose Derivatives Bearing Pyrene-Based ƒÎ-Conjugated Pendants with Circularly Polarized Luminescence in Molecularly Dispersed State
T. Ikai, Y. Kojima, K. Shinohara, K. Maeda, and S. Kanoh
Polymer, 117, 220-224 (2017) DOI: 10.1016/j.polymer.2017.04.032
42. Chiral Stationary Phases Consisting of ƒÎ-Conjugated Polymers Bearing Glucose-Linked Biphenyl Units: Reversible Switching of Resolution Abilities Based on a Coil-to-Helix Transition
T. Ikai, S. Awata, T. Kudo, R. Ishidate, K. Maeda, and S. Kanoh
Polym. Chem., 8, 4190-4198 (2017) DOI: 10.1039/C7PY00804J
Selected as Back Cover
41. A mechanistic Insight into the Organocatalytic Properties of Imidazolium-Based Ionic Liquids and a Positive Co-solvent Effect on Cellulose Modification Reactions in an Ionic Liquid
R. Kakuchi, R. Ito, S. Nomura, H. Abroshan, K. Ninomiya, T. Ikai, K. Maeda, H.J. Kim, and K. Takahashi
RSC Adv., 7, 9423-9430 (2017) DOI: 10.1039/C6RA28659C
40. Synthesis of Thieno[3,4-b]thiophene-Based Donor Molecules with Phenyl Ester Pendants for Organic Solar Cells: Control of Photovoltaic Properties via Single Substituent Replacement
Y. Wada, Y. Asada, T. Ikai, K. Maeda, T. Kuwabara, K. Takahashi, and S. Kanoh
ChemistrySelect, 1, 703-709 (2016) DOI: 10.1002/slct.201600205
39. Chiral Recognition Ability of an Optically Active Poly(diphenylacetylene) as a Chiral Stationary Phase for HPLC
K. Maeda, M. Maruta, K. Shimomura, T. Ikai, and S. Kanoh
Chem. Lett., 45, 1063-1065 (2016) DOI: 10.1246/cl.160542
38. Synthesis of Optically Active Poly(diphenylacetylene)s Using Polymer Reactions and an Evaluation of Their Chiral Recognition Abilities as Chiral Stationary Phases for HPLC
K. Maeda, M. Maruta, Y. Sakai, T. Ikai, and S. Kanoh
Molecules, 21, 1487-1500 (2016) DOI: 10.3390/molecules21111487
37. Development of Amylose- and ƒÀ-Cyclodextrin-Based Chiral Fluorescent Sensors Bearing Terthienyl Pendants
T. Ikai, C. Yun, Y. Kojima, D. Suzuki, K. Maeda, and S. Kanoh
Molecules, 21, 1518-1529 (2016) DOI: 10.3390/molecules21111518
36. Impact of a Minority Enantiomer on the Polymerization of Alanine-Based Isocyanides with an Oligothiophene Pendant
T. Ikai, Y. Wada, Y. Takagi, and K. Shinohara
Polym. Chem., 7, 7057-7067 (2016) DOI: 10.1039/C6PY01351A
Selected as Front Cover
35. Chiral Fluorescent Sensors Based on Cellulose Derivatives Bearing Terthienyl Pendants
T. Ikai, D. Suzuki, Y. Kojima, C. Yun, K. Maeda, and S. Kanoh
Polym. Chem., 7, 4793-4801 (2016) DOI: 10.1039/C6PY00967K
34. Synthesis and Chiroptical Properties of a ƒÎ-Conjugated Polymer Containing Glucose-Linked Biphenyl Units in the Main Chain Capable of Folding into a Helical Conformation
T. Ikai, S. Shimizu, S. Awata, T. Kudo, T. Yamada, K. Maeda, and S. Kanoh
Polym. Chem., 7, 7522-7529 (2016) DOI: 10.1039/C6PY01759B
33. Achieving High ON/OFF Ratio and Good Stability in Organic Nonvolatile Resistive Memory Devices with Polyisocyanide Bearing Oligothiophene
Y. Sakuragawa, Y. Takagi, T. Ikai, K. Maeda, T.T. Dao, H. Sakai, and H. Murata
Jpn. J. Appl. Phys., 55, 03DC10 (2016) DOI: 10.7567/JJAP.55.03DC10
32. Influence of 4-Fluorophenyl Pendants in Thieno[3,4-b]thiophene-benzo[1,2-b:4,5-bf]dithiophene-Based Polymers on the Performance of Photovoltaics
T. Yamamoto, T. Ikai, S. Katori, T. Kuwabara, K. Maeda, T. Koganezawa, K. Takahashi, and S. Kanoh
J. Polym. Sci., Part A: Polym. Chem., 53, 1586-1593 (2015) DOI: 10.1002/pola.27589
31. Macromolecular Helicity Induction and Memory in a Poly(biphenylylacetylene) Bearing an Ester Group and Its Application to a Chiral Stationary Phase for High-performance Liquid Chromatography
R. Ishidate, K. Shimomura, T. Ikai, S. Kanoh, and K. Maeda
Chem. Lett., 44, 946-948 (2015) DOI: 10.1246/cl.150299
30. Synthesis of Polyisocyanides Bearing Oligothiophene Pendants: Higher-Order Structural Control through Pendant Framework Design
T. Ikai, Y. Takagi, K. Shinohara, K. Maeda, and S. Kanoh
Polym. J., 47, 625-630 (2015) DOI: 10.1038/pj.2015.42
29. Thieno[3,4-b]thiophene-Benzo[1,2-b:4,5-bf]dithiophene-Based Polymers Bearing Optically Pure 2-Ethylhexyl Pendants: Synthesis and Application in Polymer Solar Cells
T. Ikai, R. Kojima, S. Katori, T. Yamamoto, T. Kuwabara, K. Maeda, K. Takahashi, and S. Kanoh
Polymer, 56, 171-177 (2015) DOI: 10.1016/j.polymer.2014.11.033
28. Efficient and Rapid Direct Transesterification Reactions of Cellulose with Isopropenyl Acetate in Ionic Liquids
R. Kakuchi, M. Yamaguchi, T. Endo, Y. Shibata, K. Ninomiya, T. Ikai, K. Maeda, and K. Takahashi
RSC Adv., 5, 72071-72074 (2015) DOI: 10.1039/C5RA14408F
27. Switchable Enantioseparation Based on Macromolecular Memory of a Helical Polyacetylene in the Solid State
K. Shimomura, T. Ikai, S. Kanoh, E. Yashima, and K. Maeda
Nature Chem., 6, 429-434 (2014) DOI: 10.1038/nchem.1916
Listed as "Highly Cited Papers" in Web of Science
26. Chiral Amplification in Polymer Brushes Consisting of Dynamic Helical Polymer Chains through the Long-Range Communication of Stereochemical Information
K. Maeda, S. Wakasone, K. Shimomura, T. Ikai, and S. Kanoh
Macromolecules, 47, 6540-6546 (2014) DOI: 10.1021/ma501612e
25. Fine Tuning of Frontier Orbital Energy Levels in Dithieno[3,2-b:2',3'-d]silole-Based Copolymers Based on the Substituent Effect of Phenyl Pendants
T. Ikai, T. Kudo, M. Nagaki, T. Yamamoto, K. Maeda, and S. Kanoh
Polymer, 55, 2139-2145 (2014) DOI: 10.1016/j.polymer.2014.03.021
24. Synthesis of Polysaccharide Derivatives Bearing Bromobenzoate Pendants for Use as Chiral Auxiliaries
T. Ikai, K. Kimura, K. Maeda, and S. Kanoh
React. Funct. Polym., 82, 52-57 (2014) DOI: 10.1016/j.reactfunctpolym.2014.06.001
23. Helical Polymer Brushes with a Preferred-Handed Helix-Sense Triggered by a Terminal Optically Active Group in the Pendant
K. Maeda, S. Wakasone, K. Shimomura, T. Ikai, and S. Kanoh
Chem. Commun., 48, 3342-3344 (2012) DOI: 10.1039/c2cc00024e
22. Synthesis of Seleno[3,4-c]pyrrole-4,6-Dione-Based Polymers for Polymer Solar Cells
T. Ikai, A.K.M.F. Azam, M. Kuzuba, T. Kuwabara, K. Maeda, K. Takahashi, and S. Kanoh
Synth. Met, 162, 1707-1712 (2012) DOI: 10.1016/j.synthmet.2012.07.003
21. Synthesis and Characterization of Thieno[3,4-b]thiophene-Based Copolymers Bearing 4-Substituted Phenyl Ester Pendants: Facile Fine-Tuning of HOMO Energy Levels
T. Yamamoto, T. Ikai, M. Kuzuba, T. Kuwabara, K. Maeda, K. Takahashi, and S. Kanoh
Macromolecules, 44, 6659-6662 (2011) DOI: 10.1021/ma201501g
20. Synthesis and Chiral Recognition Ability of A Poly(phenylenevinylene)-Encapsulated Amylose Derivative
K. Tamura, N. S. M. Sam, T. Ikai, Y. Okamoto, and E. Yashima
Bull. Chem. Soc. Jpn., 84, 741-747 (2011) DOI: 10.1246/bcsj.20110074
Highlighted as Selected Paper
19. Chiral Recognition Ability of Cellulose Derivatives Bearing Pyridyl and Bipyridyl Residues as Chiral Stationary Phases for High-Performance Liquid Chromatography
Y. Katoh, Y. Tsujimoto, C. Yamamoto, T. Ikai, M. Kamigaito, and Y. Okamoto
Polym. J., 43, 84-90 (2011) DOI: 10.1038/pj.2010.108
18. Synthesis of Polysaccharide Derivatives Bearing Pyridine N-Oxide Groups and Their Use as Asymmetric Organocatalysts
T. Ikai, M. Moro, K. Maeda, and S. Kanoh
React. Funct. Polym., 71, 1055-1058 (2011) DOI: 10.1016/j.reactfunctpolym.2011.07.010
17. Immobilization and Chiral Recognition of 3,5-Dimethylphenylcarbamates of Cellulose and Amylose Bearing 4-(Trimethoxysilyl)phenylcarbamate Groups
S. Tang, T. Ikai, M. Tsuji, and Y. Okamoto
Chirality, 22, 165-172 (2010) DOI: 10.1002/chir.20722
16. Immobilization of 3,5-Dimethylphenyl-Carbamates of Cellulose and Amylose onto Silica Gel Using (3-Glycidoxypropyl)triethoxysilane as Linker
S. Tang, T. Ikai, M. Tsuji, and Y. Okamoto
J. Sep. Sci., 33, 1255-1263 (2010) DOI: 10.1002/jssc.200900711
15. Enantioseparation Using Amylose Esters as Chiral Stationary Phases for High-Performance Liquid Chromatography
Y. Sugiura, C. Yamamoto, T. Ikai, M. Kamigaito, and Y. Okamoto
Polym. J., 42, 31-36 (2010) DOI: 10.1038/pj.2009.300
14. 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
J. Shen, T. Ikai, X. Shen, and Y. Okamoto
Chem. Lett., 39, 442-444 (2010) DOI: 10.1246/cl.2010.442
13. Synthesis and Chiral Recognition of Novel Amylose Derivatives Containing Regioselectively Benzoate and Phenylcarbamate Groups
J. Shen, T. Ikai, and Y. Okamoto
J. Chromatogr. A, 1217, 1041-1047 (2010) DOI: 10.1016/j.chroma.2009.07.027
12. Preparation and HPLC Application of Chiral Stationary Phase from 4-tert-Butylphenylcarbamates of Cellulose and Amylose Immobilized onto Silica Gel
J.-q. Li, T. Ikai, and Y. Okamoto
J. Sep. Sci., 32, 2885-2891 (2009) DOI: 10.1002/jssc.200900206
11. A Maltooctaose Derivative (gAcyclodextrinh) as a Chiral Stationary Phase for Enantioselective Gas Chromatography
G. Sicoli, I. Tomoyuki, L. Jicsinszky, and V. Schurig
Eur. J. Org. Chem., 4241-4244 (2008) DOI: 10.1002/ejoc.200800508
10. Organic-Inorganic Hybrid Materials for Efficient Enantioseparation Using Cellulose 3,5-Dimethylphenylcarbamate and Tetraethyl Orthosilicate
T. Ikai, C. Yamamoto, M. Kamigaito, and Y. Okamoto
Chem. - Asian. J., 3, 1494-1499 (2008) DOI: 10.1002/asia.200800022
9. Calix[4]arene-Based Bis[2]catenanes: Synthesis and Chiral Resolution
O. Molokanova, A. Bogdan, M.O. Vysotsky, M. Bolte, T. Ikai, Y. Okamoto, and V. Boehmer
Chem. - Eur. J., 13, 6157-6170 (2007) DOI: 10.1002/chem.200601814
8. Preparation and Chiral Recognition Ability of Crosslinked Beads of Polysaccharide Derivatives
T. Ikai, C. Yamamoto, M. Kamigaito, and Y. Okamoto
J. Sep. Sci, 30, 971-978 (2007) DOI: 10.1002/jssc.200600438
7. Immobilization of Polysaccharide Derivatives onto Silica Gel. Facile Synthesis of Chiral Packing Materials by Means of Intermolecular Polycondensation of Triethoxysilyl Groups
T. Ikai, C. Yamamoto, M. Kamigaito, and Y. Okamoto
J. Chromatogr. A, 1157, 151-158 (2007) DOI: 10.1016/j.chroma.2007.04.054
6. Efficient Immobilization of Cellulose Phenylcarbamate Bearing Alkoxysilyl Group onto Silica Gel by Intermolecular Polycondensation and Its Chiral Recognition
T. Ikai, C. Yamamoto, M. Kamigaito, and Y. Okamoto
Chem. Lett., 35, 1250-1251 (2006) DOI: 10.1246/cl.2006.1250
5. High-Performance Liquid Chromatographic Enantioseparations on Capillary Columns Containing Crosslinked Polysaccharide Phenylcarbamate Derivatives Attached to Monolithic Silica
B. Chankvetadze, T. Kubota, T. Ikai, C. Yamamoto, M. Kamigaito, N. Tanaka, K. Nakanishi, and Y. Okamoto
J. Sep. Sci., 29, 1988-1995 (2006) DOI: 10.1002/jssc.200500388
4. Enantioseparation by HPLC Using Phenylcarbonate, Benzoylformate, p-Toluenesulfonylcarbamate, and Benzoylcarbamates of Cellulose and Amylose as Chiral Stationary Phases
T. Ikai, C. Yamamoto, M. Kamigaito, and Y. Okamoto
Chirality, 17, 299-304 (2005) DOI: 10.1002/chir.20168
3. Cellulose Derivative-Based Beads as Chiral Stationary Phase for HPLC
T. Ikai, R. Muraki, C. Yamamoto, M. Kamigaito, and Y. Okamoto
Chem. Lett., 33, 1188-1189 (2004) DOI: 10.1246/cl.2004.1188
2. High-Performance Liquid Chromatographic Enantio Separations on Monolithic Silica Columns Containing a Covalently Attached 3,5-Dimethylphenylcarbamate Derivative of Cellulose
B. Chankvetadze, T. Ikai, C. Yamamoto, and Y. Okamoto
J. Chromatogr. A, 1042, 55-60 (2004) DOI: 10.1016/j.chroma.2004.05.011
1. Rational Synthesis of Multicyclic Bis[2]catenanes
A. Bogdan, M.O. Vysotsky, T. Ikai, Y. Okamoto, and V. Bohmer
Chem. - Eur. J., 10, 3324-3330 (2004) DOI: 10.1002/chem.200400195