Asymmetric transformation of alanine via optically labile imidazolines.

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概要

• 論文の詳細を見る

• Hydrolysis of an imidazoline derived from (<I>S</I>)-alanine and (<I>S</I>)-2-(aminomethyl)pyrrolidine afforded (<I>R</I>)-alanine in the optical yield of 93.8% (e.e.). The asymmetric transformation was explained on the basis of preferential crystallization of one epimer followed by epimerization of the other epimer in a solution. It was found that the epimerization was catalyzed by amines. (2<I>S</I>)-<I>N</I>-isopropyl-2-aminopropylamine was also examined as a diamine component of imidazolines.

• 公益社団法人 日本化学会の論文

著者

• KATO Kunio

  Central Research Institute, The Japan Tobacco and Salt Public Corporation

• Noguchi Masao

  Central Research Institute The Japan Tobacco & Salt Public Corporation

• MATSUSHITA Hajime

  Central Research Institute, Japan Tobacco Inc.

• Yoshikawa Sadao

  Department Of Applied Chemistry Faculty Of Science And Technology Keio University

• SHIBATA Saizo

  Central Pharmaceutical Research Institute, Japan Tobacco Inc.

• Saburi Masahiko

  Department Of Applied Chemistry Saitama Institute Of Technology

• Kato Kunio

  Central Research Institute The Japan Tobacco & Salt Public Corporation

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