2004•中国化学快报：英文版Requires access

Preparation of D-Phenylalanine by Asymmetric Transformation

BenMeiWEI, LiJianJIANG, YingPingZHENG, HaiQingXU

Abstract

The method of preparing D-phenylalanine by asymmetric transformation is reported.D-phenylalanine was prepared from DL-phenylalanine by two-step reaction.D-phenylalanine(2S,3S)-tartrate was prepared by heating DL-phenylalanine,salicylaldehyde,and (2S,3S)-tartaric acid in propionic acid;the obtained D-phenylalanine(2S,3S)-tartrate was treated with triethylamine in ethanol giving D-phenylalanine with 98% optical purity in 69% yield.

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Key concepts: Phenylalanine, Yield (engineering), Chemistry, Tartrate, Aspartame, Tartaric acid, Salicylaldehyde, Amino acid