The Role of Water-Solvation in the Optical Resolution of DL-Leucine with (S)-(−)-1-Phenylethanesulfonic Acid. Characterization and X-Ray Crystal Structures of Their Diastereomeric Salts
Yoshioka, Ryuzo, Okamura, Kimio, Yamada, Shin-ichi, Aoe, Ken-ichi, Da-te, Tadamasa
Published in Bulletin of the Chemical Society of Japan (01.05.1998)
Published in Bulletin of the Chemical Society of Japan (01.05.1998)
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Optical Resolution, Characterization, and X-Ray Crystal Structures of Diastereomeric Salts of Chiral Amino Acids with (S)-(−)-1-Phenylethanesulfonic Acid
Yoshioka, Ryuzo, Ohtsuki, Osamu, Da-te, Tadamasa, Okamura, Kimio, Senuma, Masaru
Published in Bulletin of the Chemical Society of Japan (01.11.1994)
Published in Bulletin of the Chemical Society of Japan (01.11.1994)
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Stereospecific Amination by Dynamic Kinetic Resolution Utilizing 2-Oxoimidazolidine-4-carboxylate as a Novel Chiral Auxiliary
Kubota, Hitoshi, Kubo, Akira, Takahashi, Masami, Shimizu, Ryo, Da-te, Tadamasa, Okamura, Kimio, Nunami, Ken-ichi
Published in Journal of organic chemistry (01.10.1995)
Published in Journal of organic chemistry (01.10.1995)
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Dihydropyridinone approach to manzamines: An expedient construction of the tetracyclic core of manzamine A
Nakagawa, Masako, Torisawa, Yasuhiro, Hosaka, Toshihiro, Tanabe, Kiyoshi, Da-te, Tadamasa, Okamura, Kimio, Hino, Tohru
Published in Tetrahedron letters (09.07.1993)
Published in Tetrahedron letters (09.07.1993)
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A NOVEL TRANSFORMATION OF IMIDAZOLINES INTO 2,4,6-TRISUBSTITUTED PYRIMIDINE-DERIVATIVES
SEKI, M, KUBOTA, H, MATSUMOTO, K, KINUMAKI, A, DATE, T, OKAMURA, K
Published in Journal of organic chemistry (05.11.1993)
Published in Journal of organic chemistry (05.11.1993)
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Preparation of optically pure 3'-methylspiro[imidazolidine-4,4'(1'H)-quinazoline]-2,2',5(3'H)-trione by combination of optical resolution and racemization
Yamagishi, Masafumi, Yamada, Yoshihisa, Ozaki, Kenichi, Date, Tadamasa, Okamura, Kimio, Suzuki, Mamoru, Matsumoto, Kazuo
Published in Journal of organic chemistry (01.02.1992)
Published in Journal of organic chemistry (01.02.1992)
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A new synthesis of 2,2'-disubstituted unsymmetrical biphenyls based on the intramolecular Ullmann coupling reaction utilising salicyl alcohol as a template
TAKAHASHI, M, OGIKU, T, OKAMURA, K, DA-TE, T, OHMIZU, H, KONDO, K, IWASAKI, T
Published in J. Chem. Soc., Perkin Trans. 1 (1993)
Published in J. Chem. Soc., Perkin Trans. 1 (1993)
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