Stereoselective synthesis of optically active α-methyl esters
作者:Yves Petit、Caroline Sanner、Marc Larchevêque
DOI:10.1016/0040-4039(90)80095-4
日期:1990.1
Trifluoromethanesulfonic esters of α-hydroxyesters which are easily available from the corresponding esters and triflic anhydride react with lithium dimethylcuprate in ether or magnesiocuprates in THF to provide α-methyl esters in high enantiomerical purity.