Toray Industries, Inc.

Toray Fine Chemicals Co., Ltd.

Shiho Iwata

Haruyo Sato

Sakie Nakai

Takae Ohno

Keiko Funabashi

In producing optically-active amino acid benzyl esters by reacting optically-active amino acids with benzyl alcohols, hydrazines are present in the reaction system, or the compounds are reacted in the absence of oxygen, or the compounds are reacted in the absence of oxygen while hydrazines are present in the reaction system. The processes are simple and give optically-active amino acid benzyl esters of high optical purity.

Optically active amino acid derivatives and processes for the preparation of the same

Process for producing an optically active ester by reaction of a racemic alcohol with an optically active amino or tartaric acid derivative, a process for producing an optically active alcohol by hydrolysis of the optically active ester, a process for converting an alcohol into a ketone by oxidation, a method for stably storing an optically active ketone, and a new optically active amino acid ester and a new optically active tartaric acid ester.

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Ichinomiya, Japan

Shiho Iwata