Process for preparing optically active amines and optically active carboxylic acids, and intermediates for preparation
申请人:Yamakawa Chemical Industry Co., Ltd.
公开号:US06342636B1
公开(公告)日:2002-01-29
Disclosed is a process for preparing an optically active 1-aryl- or 2-aryl-alkylamines of formulas Ia, Ib and Ic with high optical purity and high yield. The process uses an optically active 1- or 2-naphthylglycolic acid of the general formula II as a resolving agent. Also disclosed is a process for praparing an optically active 1- or 2-naphthylglycolic acid of formula II using an optically active 1-aryl- or 2-aryl-alkylamines of formulas Ia, Ib and Ic as the resolving agents