作者:Sunil V. Pansare、Rajendra P. Jain
DOI:10.1016/s0040-4039(99)00233-6
日期:1999.3
Cyclopropanation of chiral alpha-alkoxy acrylamides derived from 1R,2S-ephedrine and alpha-keto acids provides cyclopropyl morpholinones with good diastereoselectivity. Removal of the ephedrine portion generates alpha-hydroxycyclopropane carboxamides which are readily converted to enantiomerically enriched alpha-hydroxycyclopropanecarboxylic acids. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.