Performance information

• Solvent-Induced Chirality Switching in the Enantioseparation of Hydroxycarboxylic Acids with a Quaternary Stereogenic Center
  Koichi Kodama; Yumi Kondo; Takuji Hirose
  ACS Omega, Volume：10, Number：12, First page：12129, Last page：12134, Mar. 2025, [Reviewed], [Lead, Corresponding]
  American Chemical Society (ACS), English, Scientific journal
  DOI：https://doi.org/10.1021/acsomega.4c10205
  DOI ID：10.1021/acsomega.4c10205, ISSN：2470-1343, eISSN：2470-1343
• Enantioseparation via Chiral Supramolecular Gels Comprising Ambidextrous Gelators Based on β‐Peptide‐type Primary Amines　　　　　　　　　　　　　　　
  Koichi Kodama; Masato Obata; Takuji Hirose
  ChemPlusChem, Volume：89, Number：8, Mar. 2024, [Reviewed], [Lead, Corresponding]
  Abstract
  
  While β‐peptides have been paid attention due to their diverse secondary structures, their application to the design of low‐molecular‐weight gelators (LMWGs) is less explored. In this work, chiral cyclic β‐amino acid‐based β‐peptides were developed as ambidextrous LMWGs, wherein multiple hydrogen bonds between the amide moieties led to high gelation ability. Their molecular assembly was elucidated using spectroscopies, microscopy, and X‐ray analysis. Further, the supramolecular gel was used as a platform for the enantioselective extraction of (S)‐naproxen from its racemate under optimized conditions. These findings have expanded the utility of β‐peptides and shown the potential of supramolecular gels as a distinct dynamic medium for enantiomer separation.
  Wiley, Scientific journal
  DOI：https://doi.org/10.1002/cplu.202400021
  DOI ID：10.1002/cplu.202400021, ISSN：2192-6506, eISSN：2192-6506, 共同研究・競争的資金等ID：49401295
• Enantiomer separation of 2‐halomandelic acids via diastereomeric salt formation with chiral N‐substituted 2‐amino‐2‐phenylethanols
  Koichi Kodama; Yumi Kondo; Kosei Katayama; Moeka Yanagisawa; Takuji Hirose
  Chirality, Volume：36, Number：2, Nov. 2023, [Reviewed], [Lead, Corresponding]
  Abstract
  
  Chiral N‐substituted secondary 1,2‐aminoalcohols have been developed for the enantioseparation of ortho‐halomandelic acids (o‐X‐MAs) via diastereomeric salt formation. Two structural isomers, N‐methyl‐2‐amino‐1,2‐diphenylethanol and N‐benzyl‐2‐amino‐2‐phenylethanol, showed high separation abilities for o‐X‐MAs (X = Cl, Br, I). The chiral recognition mechanism was elucidated by crystallographic analysis of the less‐soluble salts. The substituents on the nitrogen atom of the resolving agents and the inclusion of the crystallization solvent stabilized the salt and enhanced their separation ability.
  Wiley, Scientific journal
  DOI：https://doi.org/10.1002/chir.23630
  DOI ID：10.1002/chir.23630, ISSN：0899-0042, eISSN：1520-636X
• Thermoreversible helical fibers from photoreactive triphenylene-derived liquid crystals in liquid paraffin　　　　　　　　　　　　　　　
  Takuji Hirose; Yuka Kikuchi; Tomoaki Nakano; Tsukasa Ohno; Kengo Kawamura; Normazliana Binti Nazri; Atsuhiro Fujimori; Koichi Kodama; Mikio Yasutake
  Heliyon, Volume：9, Number：11, First page：e22037, Last page：e22037, Nov. 2023, [Reviewed], [Corresponding]
  Elsevier BV, Scientific journal
  DOI：https://doi.org/10.1016/j.heliyon.2023.e22037
  DOI ID：10.1016/j.heliyon.2023.e22037, ISSN：2405-8440
• Chemical Storage of Ammonia through Dynamic Structural Transformation of a Hybrid Perovskite Compound
  Jyorthana Rajappa Muralidhar; Krishnachary Salikolimi; Kiyohiro Adachi; Daisuke Hashizume; Koichi Kodama; Takuji Hirose; Yoshihiro Ito; Masuki Kawamoto
  Journal of the American Chemical Society, Volume：145, Number：31, First page：16973, Last page：16977, Jul. 2023, [Reviewed]
  American Chemical Society (ACS), Scientific journal
  DOI：https://doi.org/10.1021/jacs.3c04181
  DOI ID：10.1021/jacs.3c04181, ISSN：0002-7863, eISSN：1520-5126
• Development of Low‐Molecular‐Weight Organogelators from Cyclic β‐Amino Acid: Effect of Stereochemistry and their Application on Visual Chiral Recognition of Amines　　　　　　　　　　　　　　　
  Koichi Kodama; Masato Obata; Sho Sugimura; Hiroki Yuhara; Takuji Hirose
  Chemistry – A European Journal, Volume：29, Number：11, Feb. 2023, [Reviewed], [Lead, Corresponding]
  Wiley, English, Scientific journal
  DOI：https://doi.org/10.1002/chem.202202692
  DOI ID：10.1002/chem.202202692, ISSN：0947-6539, ORCID：138991333
• Enantioseparation of 3-Hydroxycarboxylic Acids via Diastereomeric Salt Formation by 2-Amino-1,2-diphenylethanol (ADPE) and Cinchonidine　　　　　　　　　　　　　　　
  Srinivas Chandrasekaran; Masaki Tambo; Yuta Yamazaki; Tatsuro Muramatsu; Yusuke Kanda; Takuji Hirose; Koichi Kodama
  Molecules, Volume：28, Number：1, First page：114, Last page：114, Dec. 2022, [Reviewed], [Last, Corresponding]
  Enantioseparation of 3-hydroxycarboxylic acids via diastereomeric salt formation was demonstrated using 2-amino-1,2-diphenylethanol (ADPE) and cinchonidine as the resolving agents. Racemic 3-hydroxy-4-phenylbutanoic acid (rac-1), 3-hydroxy-4-(4-chlorophenyl)butanoic acid (rac-2), and 3-hydroxy-5-phenylpentanoic acid (rac-3) were efficiently resolved using these resolving agents. Moreover, the successive crystallization of the less-soluble diastereomeric salt of 1 and cinchonidine using EtOH yielded pure (R)-1 · cinchonidine salt in a high yield. The crystal structures of less-soluble diastereomeric salts were elucidated and it was revealed that hydrogen bonding and CH/π interactions play an important role in reinforcing the structure of the less-soluble diastereomeric salts.
  {MDPI} {AG}, English, Scientific journal
  DOI：https://doi.org/10.3390/molecules28010114
  DOI ID：10.3390/molecules28010114, ISSN：1420-3049, ORCID：138991330
• Chiral 1,3-aminosquaramides derived from cis-2-benzamidocyclohexanecarboxylic acid as organocatalysts for asymmetric Michael addition reactions　　　　　　　　　　　　　　　
  Koichi Kodama; Kazuhisa Maruyama; Takuji Hirose
  TETRAHEDRON, Volume：112, First page：132750, Last page：132750, Apr. 2022, [Reviewed], [Lead, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tet.2022.132750
  DOI ID：10.1016/j.tet.2022.132750, ISSN：0040-4020, eISSN：1464-5416, ORCID：138991304, Web of Science ID：WOS:000793348000002
• "Solvent-induced chirality switching" in the enantioseparation of chlorine-substituted tropic acids via diastereomeric salt formation by (1R,2S)-(-)-2-amino-1,2-diphenylethanol (ADPE)　　　　　　　　　　　　　　　
  Srinivas Chandrasekaran; Takuji Hirose; Koichi Kodama
  TETRAHEDRON, Volume：108, First page：132653, Last page：132653, Feb. 2022, [Reviewed], [Last, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tet.2022.132653
  DOI ID：10.1016/j.tet.2022.132653, ISSN：0040-4020, eISSN：1464-5416, ORCID：138991295, Web of Science ID：WOS:000768763200008
• Efficient preparation of stereopure amphiphilic 1,2-amino alcohols by using preparative enantioselective HPLC　　　　　　　　　　　　　　　
  Hayato Kanai; Kuniyo Yamada; Koichi Kodama; Yasuhiro Ishida
  CHIRALITY, Volume：34, Number：2, First page：295, Last page：305, Feb. 2022, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/chir.23395
  DOI ID：10.1002/chir.23395, ISSN：0899-0042, eISSN：1520-636X, ORCID：138991315, Web of Science ID：WOS:000719984500001
• Photocleavage behavior of a polythiophene derivative containing a coumarin unit　　　　　　　　　　　　　　　
  Jyorthana Rajappa Muralidhar; Koichi Kodama; Takuji Hirose; Yoshihiro Ito; Masuki Kawamoto
  POLYMER JOURNAL, Volume：54, Number：2, First page：191, Last page：198, Feb. 2022, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1038/s41428-021-00574-z
  DOI ID：10.1038/s41428-021-00574-z, ISSN：0032-3896, eISSN：1349-0540, Web of Science ID：WOS:000713087800001
• Noncovalent Functionalization of Single-Walled Carbon Nanotubes with a Photocleavable Polythiophene Derivative　　　　　　　　　　　　　　　
  Jyorthana Rajappa Muralidhar; Koichi Kodama; Takuji Hirose; Yoshihiro Ito; Masuki Kawamoto
  NANOMATERIALS, Volume：12, Number：1, Jan. 2022, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.3390/nano12010052
  DOI ID：10.3390/nano12010052, eISSN：2079-4991, Web of Science ID：WOS:000751016200001
• Enantiomer Separation of Nitriles and Epoxides by Crystallization with Chiral Organic Salts: Chirality Switching Modulated by Achiral Acids　　　　　　　　　　　　　　　
  Koichi Kodama; Yuki Shimomura; Takuji Hirose
  CRYSTAL GROWTH & DESIGN, Volume：21, Number：11, First page：6552, Last page：6557, Nov. 2021, [Reviewed], [Lead, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.cgd.1c01003
  DOI ID：10.1021/acs.cgd.1c01003, ISSN：1528-7483, eISSN：1528-7505, ORCID：138991289, Web of Science ID：WOS:000715841000058
• Direct enantioseparation of axially chiral 1,1 '-biaryl-2,2 '-diols using amidine-based resolving agents　　　　　　　　　　　　　　　
  Koichi Kodama; Fusato Takase; Takuji Hirose
  RSC ADVANCES, Volume：11, Number：30, First page：18162, Last page：18170, Jun. 2021, [Reviewed], [Lead, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1039/d1ra03546k
  DOI ID：10.1039/d1ra03546k, ISSN：2046-2069, eISSN：2046-2069, ORCID：138991281, Web of Science ID：WOS:000654041100003
• Characterization and enantiomer separation of indene-derived hexacyclic hydrocarbon and its application as a chiral source　　　　　　　　　　　　　　　
  Koichi Kodama; Shohei Yamaguchi; Shigetaka Hayano; Takashi Houkawa; Yoshinori Kitahara; Hiroaki Shitara; Takuji Hirose
  TETRAHEDRON, Volume：87, First page：132082, Last page：132082, May 2021, [Reviewed], [Lead, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tet.2021.132082
  DOI ID：10.1016/j.tet.2021.132082, ISSN：0040-4020, eISSN：1464-5416, ORCID：138991276, Web of Science ID：WOS:000645466300002
• Chirality switching in the enantioseparation of 2-hydroxy-4-phenylbutyric acid: Role of solvents in selective crystallization of the diastereomeric salt　　　　　　　　　　　　　　　
  Koichi Kodama; Meng Yi; Hiroaki Shitara; Takuji Hirose
  TETRAHEDRON LETTERS, Volume：61, Number：16, First page：151773, Last page：151773, Apr. 2020, [Reviewed], [Lead, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tetlet.2020.151773
  DOI ID：10.1016/j.tetlet.2020.151773, ISSN：0040-4039, ORCID：138991227, Web of Science ID：WOS:000527104000005
• Efficient Pyrazole Moiety-Containing Ligands for Cu-Catalyzed O-Arylation of Phenols　　　　　　　　　　　　　　　
  Yingying Zhao; Xiangyong Wang; Ryo Kaneyama; Koichi Kodama; Takuji Hirose
  CHEMISTRYSELECT, Volume：5, Number：14, First page：4152, Last page：4159, Apr. 2020, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/slct.201903359
  DOI ID：10.1002/slct.201903359, ISSN：2365-6549, ORCID：138991270, Web of Science ID：WOS:000529295500004
• Solvent-Induced Chirality Switching in the Enantioseparation of Halogen-Substituted Mandelic Acids: Structural Effects on Molecular Packing　　　　　　　　　　　　　　　
  Koichi Kodama; Kozue Kawasaki; Meng Yi; Kaguya Tsukarnoto; Hiroaki Shitara; Takuji Hirose
  CRYSTAL GROWTH & DESIGN, Volume：19, Number：12, First page：7153, Last page：7159, Dec. 2019, [Reviewed], [Lead, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.cgd.9b01015
  DOI ID：10.1021/acs.cgd.9b01015, ISSN：1528-7483, eISSN：1528-7505, ORCID：69675472, Web of Science ID：WOS:000501621100038
• Synthesis and evaluation of chiral beta-amino acid-based low-molecular-weight organogelators possessing a methyl/trifluoromethyl side chain　　　　　　　　　　　　　　　
  Kodama Koichi; Kawamata Ryuta; Hirose Takuji
  New Journal of Chemistry, Volume：43, Number：7, First page：2882, Last page：2887, 2019, [Reviewed], [Lead, Corresponding]
  Scientific journal
  DOI：https://doi.org/10.1039/c8nj05668d
  DOI ID：10.1039/c8nj05668d, ORCID：55398499, Web of Science ID：WOS:000459944500046
• Polymeric fibers and microporous films by photo-crosslinking of triphenylene-derived liquid crystals　　　　　　　　　　　　　　　
  Hirose Takuji; Xu Zhe; Kikuchi Yuka; Fukushima Masahito; Kawamura Kengo; Kaguchi Yosuke; Kodama Koichi; Yasutake Mikio
  Journal of Polymer Science Part A-Polymer Chemistry, Volume：57, Number：5, First page：605, Last page：612, 2019, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/pola.29299
  DOI ID：10.1002/pola.29299, ISSN：0887-624X, eISSN：1099-0518, ORCID：55398498, Web of Science ID：WOS:000456602400004
• Photocatalytic CO2 Reduction by Trigonal-Bipyramidal Cobalt(II) Polypyridyl Complexes: The Nature of Cobalt(I) and Cobalt(0) Complexes upon Their Reactions with CO2, CO, or Proton　　　　　　　　　　　　　　　
  Tomoe Shimoda; Takeshi Morishima; Koichi Kodama; Takuji Hirose; Dmitry E. Polyansky; Gerald F. Manbeck; James T. Muckerman; Etsuko Fujita
  Inorganic Chemistry, Volume：57, Number：9, First page：5486, Last page：5498, May 2018, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.inorgchem.8b00433
  DOI ID：10.1021/acs.inorgchem.8b00433, ISSN：1520-510X, ORCID：55398503, SCOPUS ID：85046633106, Web of Science ID：WOS:000431833500080
• Enantioseparation of Sulfoxides and Nitriles by Inclusion Crystallization with Chiral Organic Salts Based on l-Phenylalanine　　　　　　　　　　　　　　　
  Koichi Kodama; Hayato Kanai; Yuki Shimomura; Takuji Hirose
  European Journal of Organic Chemistry, Volume：2018, Number：14, First page：1726, Last page：1729, Apr. 2018, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/ejoc.201800003
  DOI ID：10.1002/ejoc.201800003, ISSN：1099-0690, ORCID：55398501, SCOPUS ID：85045659514, Web of Science ID：WOS:000430286900013
• Organocatalyst system for disubstituted carbonates from cycloaddition between CO2 and internal epoxides　　　　　　　　　　　　　　　
  Takuji Hirose; Shujie Qu; Koichi Kodama; Xiangyong Wang
  Journal of CO2 Utilization, Volume：24, First page：261, Last page：265, Mar. 2018, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.jcou.2018.01.016
  DOI ID：10.1016/j.jcou.2018.01.016, ISSN：2212-9820, eISSN：2212-9839, ORCID：55398502, SCOPUS ID：85041480514, Web of Science ID：WOS:000428234500030
• Copper-Catalyzed Coupling Reactions of Aryl Halides and Phenols by 4,4 '-Dimethoxy-2,2 '-bipyridine and 4,7-Dimethoxy-1,10-phenanthroline　　　　　　　　　　　　　　　
  Zhao Yingying; Wang Xiangyong; Kodama Koichi; Hirose Takuji
  Chemistryselect, Volume：3, Number：44, First page：12620, Last page：12624, 2018, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/slct.201802278
  DOI ID：10.1002/slct.201802278, ISSN：2365-6549, ORCID：55398500, Web of Science ID：WOS:000452173000030
• Poly(4-vinylphenol)/tetra-n-butylammonium iodide: Efficient organocatalytic system for synthesis of cyclic carbonates from CO2 and epoxides　　　　　　　　　　　　　　　
  Xiangyong Wang; Yingying Zhao; Koichi Kodama; Takuji Hirose
  JOURNAL OF APPLIED POLYMER SCIENCE, Volume：134, Number：33, Sep. 2017, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/app.45189
  DOI ID：10.1002/app.45189, ISSN：0021-8995, eISSN：1097-4628, ORCID：55398505, Web of Science ID：WOS:000402201600020
• Solvent-induced chirality switching in the enantioseparation of regioisomeric hydroxyphenylpropionic acids via diastereomeric salt formation with (1R,2S)-2-amino-1,2-diphenylethanol`　　　　　　　　　　　　　　　
  Koichi Kodama; Jun Nagata; Nobuhiro Kurozumi; Hiroaki Shitara; Takuji Hirose
  TETRAHEDRON-ASYMMETRY, Volume：28, Number：3, First page：460, Last page：466, Mar. 2017, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tetasy.2017.02.011
  DOI ID：10.1016/j.tetasy.2017.02.011, ISSN：0957-4166, ORCID：55398506, Web of Science ID：WOS:000398332600011
• Efficient and practical organocatalytic system for the synthesis of cyclic carbonates from carbon dioxide and epoxides: 3-hydroxypyridine/tetra-n-butylammonium iodide　　　　　　　　　　　　　　　
  Xiangyong Wang; Lin Wang; Yingying Zhao; Koichi Kodama; Takuji Hirose
  TETRAHEDRON, Volume：73, Number：8, First page：1190, Last page：1195, Feb. 2017, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tet.2017.01.018
  DOI ID：10.1016/j.tet.2017.01.018, ISSN：0040-4020, ORCID：55398504, Web of Science ID：WOS:000394194400015
• Formation of Ternary Inclusion Crystal and Enantioseparation of Alkyl Aryl Sulfoxides by the Salt of Urea-Modified L-Phenylalanine and an Achiral Amine　　　　　　　　　　　　　　　
  Koichi Kodama; Rina Morita; Takuji Hirose
  CRYSTAL GROWTH & DESIGN, Volume：16, Number：9, First page：5206, Last page：5213, Sep. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.cgd.6b00768
  DOI ID：10.1021/acs.cgd.6b00768, ISSN：1528-7483, eISSN：1528-7505, ORCID：27611389, Web of Science ID：WOS:000382902400052
• Direct enantioseparation of diarylmethylamines with an ortho-hydroxy group via diastereomeric salt formation and their application to the enantioselective addition reaction of diethylzinc　　　　　　　　　　　　　　　
  Koichi Kodama; Naoki Hayashi; Yasuhiko Yoshida; Takuji Hirose
  TETRAHEDRON, Volume：72, Number：10, First page：1387, Last page：1394, Mar. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tet.2016.01.034
  DOI ID：10.1016/j.tet.2016.01.034, ISSN：0040-4020, ORCID：27611387, Web of Science ID：WOS:000370906600015
• Cationic Polymerization of Vinyl Ethers and p-Methoxystyrene by a Benign Initiating System: Silver Salt/Arylmethyl Halide/Dialkyl Sulfide　　　　　　　　　　　　　　　
  Li Lin; Guangyou Zhang; Koichi Kodama; Hiroaki Shitara; Takuji Hirose
  JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, Volume：54, Number：6, First page：861, Last page：870, Mar. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/pola.27925
  DOI ID：10.1002/pola.27925, ISSN：0887-624X, eISSN：1099-0518, ORCID：27611385, Web of Science ID：WOS:000370005300014
• Economical synthesis of cyclic carbonates from carbon dioxide and halohydrins using K2CO3　　　　　　　　　　　　　　　
  Takuji Hirose; Shinsuke Shimizu; Shujie Qu; Hiroaki Shitara; Koichi Kodama; Lin Wang
  RSC ADVANCES, Volume：6, Number：73, First page：69040, Last page：69044, 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/c6ra13008a
  DOI ID：10.1039/c6ra13008a, ISSN：2046-2069, ORCID：27611388, Web of Science ID：WOS:000381512600055
• DBU/benzyl bromide: an efficient catalytic system for the chemical fixation of CO2 into cyclic carbonates under metal- and solvent-free conditions　　　　　　　　　　　　　　　
  Lin Wang; Koichi Kodama; Takuji Hirose
  CATALYSIS SCIENCE & TECHNOLOGY, Volume：6, Number：11, First page：3872, Last page：3877, 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/c5cy01892g
  DOI ID：10.1039/c5cy01892g, ISSN：2044-4753, eISSN：2044-4761, ORCID：27611386, Web of Science ID：WOS:000378276100024
• An efficient metal- and solvent-free organocatalytic system for chemical fixation of CO2 into cyclic carbonates under mild conditions　　　　　　　　　　　　　　　
  Lin Wang; Guangyou Zhang; Koichi Kodamaa; Takuji Hirose
  GREEN CHEMISTRY, Volume：18, Number：5, First page：1229, Last page：1233, 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/c5gc02697k
  DOI ID：10.1039/c5gc02697k, ISSN：1463-9262, eISSN：1463-9270, ORCID：27611384, Web of Science ID：WOS:000371608100008
• A systematic study on ternary inclusion crystals consisting of dianilines and three positional isomers of ditoluoyl-L-tartaric acid　　　　　　　　　　　　　　　
  Koichi Kodama; Yuya Morita; Eriko Sekine; Takuji Hirose
  CRYSTENGCOMM, Volume：18, Number：1, First page：123, Last page：129, 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/c5ce01769f
  DOI ID：10.1039/c5ce01769f, ISSN：1466-8033, ORCID：27611383, Web of Science ID：WOS:000366840100013
• A benign initiating system for cationic polymerization of isobutyl vinyl ether: Silver salt/aryl(alkyl) halide/lewis base　　　　　　　　　　　　　　　
  Li Lin; Guangyou Zhang; Koichi Kodama; Mikio Yasutake; Takuji Hirose
  JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, Volume：53, Number：17, First page：2050, Last page：2058, Sep. 2015, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/pola.27656
  DOI ID：10.1002/pola.27656, ISSN：0887-624X, eISSN：1099-0518, ORCID：27611390, Web of Science ID：WOS:000358512900011
• Trialkylsilylethynyl-substituted triphenylenes and hexabenzocoronenes: highly soluble liquid crystalline materials and their hole transport abilities　　　　　　　　　　　　　　　
  Takuji Hirose; Yutaro Miyazaki; Mizuki Watabe; Sho Akimoto; Tatsuya Tachikawa; Koichi Kodama; Mikio Yasutake
  TETRAHEDRON, Volume：71, Number：29, First page：4714, Last page：4721, Jul. 2015, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tet.2015.05.071
  DOI ID：10.1016/j.tet.2015.05.071, ISSN：0040-4020, ORCID：27611391, Web of Science ID：WOS:000357348100003
• Solvent-induced dual chirality switching in the optical resolution of tropic acid via diastereomeric salt formation with (1R,2S)-2-amino-1,2-diphenylethanol　　　　　　　　　　　　　　　
  Koichi Kodama; Nobuhiro Kurozumi; Hiroaki Shitara; Takuji Hirose
  TETRAHEDRON, Volume：70, Number：43, First page：7923, Last page：7928, Oct. 2014, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tet.2014.08.053
  DOI ID：10.1016/j.tet.2014.08.053, ISSN：0040-4020, ORCID：27611395, Web of Science ID：WOS:000343344500013
• Effect of alkoxy terminal chain length on mesomorphism of 1,6-disubstituted pyrenebased hexacatenar liquid crystals: columnar phase control　　　　　　　　　　　　　　　
  Takuji Hirose; Hiroaki Takai; Mizuki Watabe; Hiroyuki Minamikawa; Tatsuya Tachikawa; Koichi Kodama; Mikio Yasutake
  TETRAHEDRON, Volume：70, Number：34, First page：5100, Last page：5108, Aug. 2014, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tet.2014.05.111
  DOI ID：10.1016/j.tet.2014.05.111, ISSN：0040-4020, ORCID：27611394, Web of Science ID：WOS:000339035200011
• Chirality Switching in Optical Resolution of Mandelic Acid in C1-C4 Alcohols: Elucidation of Solvent Effects Based on X-ray Crystal Structures of Diastereomeric Salts　　　　　　　　　　　　　　　
  Koichi Kodama; Hiroaki Shitara; Takuji Hirose
  CRYSTAL GROWTH & DESIGN, Volume：14, Number：7, First page：3549, Last page：3556, Jul. 2014, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/cg500483p
  DOI ID：10.1021/cg500483p, ISSN：1528-7483, eISSN：1528-7505, ORCID：27611392, Web of Science ID：WOS:000339090400045
• Synthesis of cyclic carbonates from CO2 and epoxides catalyzed by low loadings of benzyl bromide/DMF at ambient pressure　　　　　　　　　　　　　　　
  Lin Wang; Li Lin; Guangyou Zhang; Koichi Kodama; Mikio Yasutake; Takuji Hirose
  CHEMICAL COMMUNICATIONS, Volume：50, Number：94, First page：14813, Last page：14816, 2014, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/c4cc06791f
  DOI ID：10.1039/c4cc06791f, ISSN：1359-7345, eISSN：1364-548X, ORCID：27611396, Web of Science ID：WOS:000344460300027
• Direct enantioseparation of 1-(2-hydroxyphenyl) ethylamines via diastereomeric salt formation: chiral recognition mechanism based on the crystal structure　　　　　　　　　　　　　　　
  Koichi Kodama; Naoki Hayashi; Mikidai Fujita; Takuji Hirose
  RSC ADVANCES, Volume：4, Number：49, First page：25609, Last page：25615, 2014, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/c4ra00414k
  DOI ID：10.1039/c4ra00414k, ISSN：2046-2069, ORCID：27611393, Web of Science ID：WOS:000338434500020
• Synthesis and spectral properties of ruthenium(II) complexes based on 2,2 '-bipyridines modified by a perylene chromophore　　　　　　　　　　　　　　　
  Koichi Kodama; Akinori Kobayashi; Takuji Hirose
  TETRAHEDRON LETTERS, Volume：54, Number：40, First page：5514, Last page：5517, Oct. 2013, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tetlet.2013.07.150
  DOI ID：10.1016/j.tetlet.2013.07.150, ISSN：0040-4039, ORCID：27611398, Web of Science ID：WOS:000324452100024
• Solvent-Induced Reversed Stereoselectivity in Reciprocal Resolutions of Mandelic Acid and erythro-2-Amino-1,2-diphenylethanol　　　　　　　　　　　　　　　
  Hiroaki Shitara; Toshiki Shintani; Koichi Kodama; Takuji Hirose
  JOURNAL OF ORGANIC CHEMISTRY, Volume：78, Number：18, First page：9309, Last page：9316, Sep. 2013, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jo401517q
  DOI ID：10.1021/jo401517q, ISSN：0022-3263, ORCID：27611397, Web of Science ID：WOS:000330159500040
• Dielectrically controlled resolution (DCR) of 3-aminopiperidine via diastereomeric salt formation with N-tosyl-(S)-phenylalanine　　　　　　　　　　　　　　　
  Rumiko Sakurai; Kenichi Sakai; Koichi Kodama; Masanori Yamaura
  TETRAHEDRON-ASYMMETRY, Volume：23, Number：3-4, First page：221, Last page：224, Feb. 2012, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tetasy.2012.02.002
  DOI ID：10.1016/j.tetasy.2012.02.002, ISSN：0957-4166, ORCID：27611400, Web of Science ID：WOS:000302973900005
• Enantioseparation of 1-arylethanols via a supramolecular chiral host consisting of N-(2-naphthoyl)-L-aspartic acid and an achiral diamine　　　　　　　　　　　　　　　
  Koichi Kodama; Ayaka Kanno; Eriko Sekine; Takuji Hirose
  ORGANIC & BIOMOLECULAR CHEMISTRY, Volume：10, Number：9, First page：1877, Last page：1882, 2012, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/c2ob06475h
  DOI ID：10.1039/c2ob06475h, ISSN：1477-0520, ORCID：27611401, Web of Science ID：WOS:000300047600024
• Cyanative self-condensation of aromatic aldehydes promoted by VO((OPr)-Pr-i)(3)-Lewis base as a cooperative catalyst　　　　　　　　　　　　　　　
  Koichi Kodama; Hiroaki Kawamata; Naoya Takahashi; Takuji Hirose
  ORGANIC & BIOMOLECULAR CHEMISTRY, Volume：10, Number：47, First page：9440, Last page：9446, 2012, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/c2ob26811f
  DOI ID：10.1039/c2ob26811f, ISSN：1477-0520, ORCID：27611399, Web of Science ID：WOS:000311161900017
• Synthesis of Chiral 1,3-Diamines Derived from cis-2-Benzamidocyclohexanecarboxylic Acid and Their Application in the Cu-Catalyzed Enantioselective Henry Reaction　　　　　　　　　　　　　　　
  Koichi Kodama; Kazuyuki Sugawara; Takuji Hirose
  CHEMISTRY-A EUROPEAN JOURNAL, Volume：17, Number：48, First page：13584, Last page：13592, Nov. 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/chem.201102136
  DOI ID：10.1002/chem.201102136, ISSN：0947-6539, ORCID：27611406, Web of Science ID：WOS:000298059600027
• Construction of Hydrogen-Bonded Ternary Organic Crystals Derived from L-Tartaric Acid and Their Application to Enantioseparation of Secondary Alcohols　　　　　　　　　　　　　　　
  Koichi Kodama; Eriko Sekine; Takuji Hirose
  CHEMISTRY-A EUROPEAN JOURNAL, Volume：17, Number：41, First page：11527, Last page：11534, Oct. 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/chem.201101839
  DOI ID：10.1002/chem.201101839, ISSN：0947-6539, ORCID：27611402, Web of Science ID：WOS:000297014400021
• Switching of Enantioselectivity in the Catalytic Addition of Diethylzinc to Aldehydes by Regioisomeric Chiral 1,3-Amino Sulfonamide Ligands　　　　　　　　　　　　　　　
  Takuji Hirose; Kazuyuki Sugawara; Koichi Kodama
  JOURNAL OF ORGANIC CHEMISTRY, Volume：76, Number：13, First page：5413, Last page：5428, Jul. 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jo200834n
  DOI ID：10.1021/jo200834n, ISSN：0022-3263, ORCID：27611405, Web of Science ID：WOS:000291920900026
• Solvent-Induced Chirality Control in the Enantioseparation of 1-Phenylethylamine via Diastereomeric Salt Formation　　　　　　　　　　　　　　　
  Koichi Kodama; Yuria Kimura; Hiroaki Shitara; Mikio Yasutake; Rumiko Sakurai; Takuji Hirose
  CHIRALITY, Volume：23, Number：4, First page：326, Last page：332, Apr. 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/chir.20922
  DOI ID：10.1002/chir.20922, ISSN：0899-0042, ORCID：27611403, Web of Science ID：WOS:000288087700007
• Structural effects of polyethers and ionic liquids in their binary mixtures on lower critical solution temperature liquid-liquid phase separation　　　　　　　　　　　　　　　
  Koichi Kodama; Ryohei Tsuda; Kazuyuki Niitsuma; Takashi Tamura; Takeshi Ueki; Hisashi Kokubo; Masayoshi Watanabe
  POLYMER JOURNAL, Volume：43, Number：3, First page：242, Last page：248, Mar. 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1038/pj.2010.140
  DOI ID：10.1038/pj.2010.140, ISSN：0032-3896, ORCID：27611404, Web of Science ID：WOS:000288066000002
• Self-assembled proline-amino thioureas as efficient organocatalysts for the asymmetric Michael addition of aldehydes to nitroolefins　　　　　　　　　　　　　　　
  Wan-Hui Wang; Takeshi Abe; Xiang-Bo Wang; Koichi Kodama; Takuji Hirose; Guang-You Zhang
  TETRAHEDRON-ASYMMETRY, Volume：21, Number：24, First page：2925, Last page：2933, Dec. 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tetasy.2010.11.025
  DOI ID：10.1016/j.tetasy.2010.11.025, ISSN：0957-4166, ORCID：27611410, Web of Science ID：WOS:000287295400006
• Novel chiral ammonium ionic liquids as efficient organocatalysts for asymmetric Michael addition of aldehydes to nitroolefins　　　　　　　　　　　　　　　
  Wan-Hui Wang; Xiang-Bo Wang; Koichi Kodama; Takuji Hirose; Guang-You Zhang
  TETRAHEDRON, Volume：66, Number：27-28, First page：4970, Last page：4976, Jul. 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tet.2010.05.030
  DOI ID：10.1016/j.tet.2010.05.030, ISSN：0040-4020, ORCID：27611409, Web of Science ID：WOS:000279126700008
• Chirality control in the enantioselective arylation of aromatic aldehydes catalyzed by cis-(1R,2S)-2-benzamidocyclohexanecarboxylic acid derived 1,3-aminoalcohols　　　　　　　　　　　　　　　
  Xiang-Bo Wang; Koichi Kodama; Takuji Hirose; Xiao-Feng Yang; Guang-You Zhang
  TETRAHEDRON-ASYMMETRY, Volume：21, Number：1, First page：75, Last page：80, Jan. 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tetasy.2010.01.003
  DOI ID：10.1016/j.tetasy.2010.01.003, ISSN：0957-4166, ORCID：27611408, Web of Science ID：WOS:000275351900014
• Chirality Control by Substituents in the Asymmetric Addition of Et2Zn to Aromatic Aldehydes Catalyzed by cis-(1R,2S)-2-Benzamidocyclohexanecarboxylic Acid Derived 1,3-Aminoalcohols　　　　　　　　　　　　　　　
  Wang Xiangbo; Koichi Kodama; Takuji Hirose; Zhang Guangyou
  CHINESE JOURNAL OF CHEMISTRY, Volume：28, Number：1, First page：61, Last page：68, Jan. 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/cjoc.201090036
  DOI ID：10.1002/cjoc.201090036, ISSN：1001-604X, ORCID：27611407, Web of Science ID：WOS:000274096800009
• Thermodynamic study on phase transitions of poly(benzyl methacrylate) in ionic liquid solvents　　　　　　　　　　　　　　　
  Takeshi Ueki; Asako Ayusawa Arai; Koichi Kodama; Sayaka Kaino; Noriko Takada; Takeshi Morita; Keiko Nishikawa; Masayoshi Watanabe
  PURE AND APPLIED CHEMISTRY, Volume：81, Number：10, First page：1829, Last page：1841, Oct. 2009, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1351/PAC-CON-08-09-04
  DOI ID：10.1351/PAC-CON-08-09-04, ISSN：0033-4545, eISSN：1365-3075, ORCID：27611413, Web of Science ID：WOS:000271179300008
• Thermosensitive Self-Assembly of Diblock Copolymers with Lower Critical Micellization Temperatures in an Ionic Liquid　　　　　　　　　　　　　　　
  Saki Tamura; Takeshi Ueki; Kazuhide Ueno; Koichi Kodama; Masayoshi Watanabe
  MACROMOLECULES, Volume：42, Number：16, First page：6239, Last page：6244, Aug. 2009, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/ma900922d
  DOI ID：10.1021/ma900922d, ISSN：0024-9297, eISSN：1520-5835, ORCID：27611414, Web of Science ID：WOS:000269043200047
• Photoisomerization-Induced Tunable LCST Phase Separation of Azobenzene-Containing Polymers in an Ionic Liquid　　　　　　　　　　　　　　　
  Takeshi Ueki; Ayuko Yamaguchi; Naoki Ito; Koichi Kodama; Junji Sakamoto; Kazuhide Ueno; Hisashi Kokubo; Masayoshi Watanabe
  LANGMUIR, Volume：25, Number：16, First page：8845, Last page：8848, Aug. 2009, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/la901159r
  DOI ID：10.1021/la901159r, ISSN：0743-7463, ORCID：27611412, Web of Science ID：WOS:000268719900002
• Lower Critical Solution Temperature Phase Behavior of Linear Polymers in Imidazolium-Based Ionic Liquids: Effects of Structural Modifications　　　　　　　　　　　　　　　
  Koichi Kodama; Hideyuki Nanashima; Takeshi Ueki; Hisashi Kokubo; Masayoshi Watanabe
  LANGMUIR, Volume：25, Number：6, First page：3820, Last page：3824, Mar. 2009
  English, Scientific journal
  DOI：https://doi.org/10.1021/la803945n
  DOI ID：10.1021/la803945n, ISSN：0743-7463, CiNii Articles ID：80020170570, Web of Science ID：WOS:000264145000072
• Enantioselective inclusion of chiral alkyl aryl sulfoxides in a supramolecular helical channel consisting of an enantiopure 1,2-amino alcohol and an achiral carboxylic acid　　　　　　　　　　　　　　　
  Yuka Kobayashi; Soetrisno; Koichi Kodama; Kazuhiko Saigo
  TETRAHEDRON-ASYMMETRY, Volume：19, Number：3, First page：295, Last page：301, Feb. 2008
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.tetasy.2007.11.041
  DOI ID：10.1016/j.tetasy.2007.11.041, ISSN：0957-4166, CiNii Articles ID：80019367950, Web of Science ID：WOS:000254160800006
• LCST-type liquid-liquid phase separation behaviour of poly(ethylene oxide) derivatives in an ionic liquid　　　　　　　　　　　　　　　
  Ryohei Tsuda; Koichi Kodama; Takeshi Ueki; Hisashi Kokubo; Shin-ichiro Imabayashi; Masayoshi Watanabe
  CHEMICAL COMMUNICATIONS, Number：40, First page：4939, Last page：4941, 2008
  English, Scientific journal
  DOI：https://doi.org/10.1039/b810127b
  DOI ID：10.1039/b810127b, ISSN：1359-7345, CiNii Articles ID：80019936631, PubMed ID：18931745, Web of Science ID：WOS:000260411000021
• Role of the relative molecular length of the components in ternary inclusion crystals in the chiral recognition and assembly of supramolecular helical architectures　　　　　　　　　　　　　　　
  Koichi Kodama; Yuka Kobayashi; Kazuhiko Saigo
  Crystal Growth and Design, Volume：7, Number：5, First page：935, Last page：939, May 2007
  English, Scientific journal
  DOI：https://doi.org/10.1021/cg060849c
  DOI ID：10.1021/cg060849c, ISSN：1528-7483, CiNii Articles ID：80018502206, SCOPUS ID：34249045766
• Two-component supramolecular helical architectures: Creation of tunable dissymmetric cavities for the inclusion and chiral recognition of the third components　　　　　　　　　　　　　　　
  Koichi Kodama; Yuka Kobayashi; Kazuhiko Saigo
  CHEMISTRY-A EUROPEAN JOURNAL, Volume：13, Number：7, First page：2144, Last page：2152, 2007
  English, Scientific journal
  DOI：https://doi.org/10.1002/chem.200601295
  DOI ID：10.1002/chem.200601295, ISSN：0947-6539, CiNii Articles ID：80018629392, PubMed ID：17154322, Web of Science ID：WOS:000244914700025
• Supramolecular architecture consisting of an enantiopure amine and an achiral carboxylic acid: Application to the enantioseparation of racemic alcohols　　　　　　　　　　　　　　　
  Y Kobayashi; K Kodama; K Saigo
  ORGANIC LETTERS, Volume：6, Number：17, First page：2941, Last page：2944, Aug. 2004
  English, Scientific journal
  DOI：https://doi.org/10.1021/ol048948b
  DOI ID：10.1021/ol048948b, ISSN：1523-7060, CiNii Articles ID：80016845065, PubMed ID：15330653, Web of Science ID：WOS:000223296800027

• 多成分有機結晶を利用した光学分割法の開発　　　　　　　　　　　　　　　
  小玉 康一
  Volume：69, Number：4, First page：1, Last page：6, 2018, [Corresponding]
• 温度応答性高分子－イオン液体混合系の相挙動　　　　　　　　　　　　　　　
  小玉 康一; 北沢 侑造; 上木 岳士; 渡邉 正義
  2013
  Japanese, Introduction scientific journal
• Chemistry between Polyethers and Ionic Liquids: LCST Liquid-Liquid Phase Separation　　　　　　　　　　　　　　　
  Koichi Kodama; RyoheiTsuda; Kazuyuki Niitsuma; TakashiTamura, TakeshiUeki; Hisashi Kokubo; Masayoshi Watanabe
  高分子(Hot Topics), Volume：61, First page：683, Sep. 2012
  ポリエーテルとイオン液体からなる二成分系のLCST型相分離を支配する化学を論じた。
  English, Introduction research institution
• Chirality control in the enantioselective arylation of aromatic aldehydes catalyzed by cis-(1R,2S)-2-benzamidocyclohexanecarboxylic acid derived 1,3-aminoalcohols
  廣瀬 卓司; 王 祥波; 小玉 康一; 御前 仁美; 小松 拓磨
  Volume：3, First page：15, Last page：21, 2011
  A series of chiral 1,3-aminoalcohols derived from cis-(1R,2S)-2-benzamidocyclohexanecarboxylic acid were synthesized and applied in the enantioselective arylation of aromatic aldehydes. The reactions exhibited good yields (up to 90%) and moderate to high enantioselectivities (up to 99%). Not only the enantioselectivity but also the stereochemistry of the product was controlled by the substituent effect of the chiral ligands.
  English
  CiNii Articles ID：120003111441

• 低分子ゲル・超分子ゲルの設計開発と応用　　　　　　　　　　　　　　　
  鈴木, 正浩 (超分子化学), [Joint work]
  Jul. 2023
  Japanese, Total pages：iv, 234p
  CiNii Books：http://ci.nii.ac.jp/ncid/BD05166006
  ISBN：9784781317496, CiNii Books ID：BD05166006
• Comprehensive organic synthesis　　　　　　　　　　　　　　　
  Knochel, Paul; Molander, Gary A., [Joint work]
  Elsevier, Jun. 2014
  English, Total pages：9806
  CiNii Books：http://ci.nii.ac.jp/ncid/BB15765432
  ISBN：0080977421, ASIN：0080977421, EAN：9780080977423, CiNii Books ID：BB15765432

• アンビデキストラスな低分子量ゲル化剤における水素結合部位の影響　　　　　　　　　　　　　　　
  Oct. 2024
  Poster presentation
• ヘキサヘリセン類に対するNMRキラルシフト試薬の開発　　　　　　　　　　　　　　　
  Oct. 2024
• 桂皮酸構造を含む液晶性トリフェニレン誘導体の合成と熱伝導材料への応用　　　　　　　　　　　　　　　
  Oct. 2024
• キラルなフッ素化β-アミノ酸のジアステレオマー塩法による光学分割　　　　　　　　　　　　　　　
  Oct. 2024
• 環状カーボネート合成における速度論的光学分割のための不斉有機触媒の開発　　　　　　　　　　　　　　　
  Oct. 2024
• 光重合性ディスコチック液晶を利用した多孔性高分子膜によるイオン性色素の選択的吸着　　　　　　　　　　　　　　　
  Sep. 2024
• 酒石酸類縁体を用いた超分子キラルホストの開発と不斉識別への応用　　　　　　　　　　　　　　　
  2009
  Poster presentation

• Solvent-induced chirality switching by supramolecular gels　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 01 Apr. 2023 - 31 Mar. 2026
  Saitama University
  Grant amount(Total)：4680000, Direct funding：3600000, Indirect funding：1080000
  Grant number：23K04716
  論文ID：48235745
• Optical resolution of weak acids with chiral amidines　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), 01 Apr. 2020 - 31 Mar. 2023
  Saitama University
  Grant amount(Total)：4290000, Direct funding：3300000, Indirect funding：990000
  Grant number：20K05458
• Development of Solvent-induced Chirality Switching Resolution Method　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B), Grant-in-Aid for Young Scientists (B), 01 Apr. 2016 - 31 Mar. 2019
  KODAMA KOICHI, Saitama University
  Grant amount(Total)：4290000, Direct funding：3300000, Indirect funding：990000
  We have investigated the scope of chiral carboxylic acids in the solvent-induced chirality switching optical resolution. It was found that mandelic acids with a halogen substituent on the meta position could be enantioseparated and their stereochemistry was changed dependent on the used crystallization solvents. Based on the results of crystallographic analysis of the diastereomeric salts, it was suggested that the incorporation of the solvent in the salt with hydrogen bonds changed the stability of each salt, which resulted in the switching of chirality of the deposited salts.
  Grant number：16K17888
• Enantiomer separation in the asymmetric media created by chiral supramolecular gel　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research, Grant-in-Aid for Challenging Exploratory Research, 01 Apr. 2014 - 31 Mar. 2016
  KODAMA Koichi, Saitama University
  Grant amount(Total)：3900000, Direct funding：3000000, Indirect funding：900000
  Two-component low molecular weight gelators have been developed from the salts of achiral diamines and chiral dicarboxylic acids derived from a natural amino acid. Organic solvents such as toluene were well gelated by these salts. It was shown that suitable balance between hydrophobicity of the alkyl group and hydrophilicity of the hydrogen-bonding group was important for the gelation ability. It is indicated that the molecules self-assembled to form a layered structure. The supramolecular gel enabled enantioselective extraction of one enantiomer of the alcohol from its racemate despite of low efficiency.
  Grant number：26620163
• Construction of supramolecular chiral host systems and their application to enantioseparation　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B), Grant-in-Aid for Young Scientists (B), 2010 - 2011
  KODAMA Koichi, Saitama University
  Grant amount(Total)：4030000, Direct funding：3100000, Indirect funding：930000
  Supramolecular chiral host systems for efficient enantioseparation of aromatic and aliphatic alcohols have been developed. The combination of achiral diamines and chiral dicarboxylic acids derived from tartaric acid or natural amino acid served as supramolecular hosts. The chiral recognition ability was controlled by modification of the components. The recognition mechanism was clarified on the basis of X-ray crystallographic analysis of the inclusion crystals.
  Grant number：22750119