Reaction of (R)-pantolactone esters of alpha-bromoacids with amines a remarkable synthesis of optically active alpha-amino esters
作者:Kevin Koh、Robert N. Ben、Tony Durst
DOI:10.1016/0040-4039(93)88062-n
日期:1993.7
(R)-Pantolactoneesters of racemic α-bromo acids react with amines to give α-amino esters having the (S)-configuration at the α-carbon in yields which are considerably greater than the 50% expected on the basis of a simple SN2 displacement reaction.
外消旋α-溴酸的(R)-内酯酯与胺反应生成α-碳上具有(S)-构型的α-氨基酯,其收率大大高于简单估算的50%预期S N 2置换反应。