Catalytic asymmetric synthesis of β-hydroxy-α-amino acid esters by direct aldol reaction of glycinate Schiff bases
作者:Naoki Yoshikawa、Masakatsu Shibasaki
DOI:10.1016/s0040-4020(02)00979-1
日期:2002.10
A catalyticasymmetricsynthesis of β-hydroxy-α-amino acid esters was developed using the directaldolreaction of glycinate Schiff bases with aldehydes. The reaction was catalyzed by heterobimetallic asymmetric complexes without preformation of enol silyl ethers from glycinate Schiff bases. anti-β-Hydroxy-α-amino acid esters were obtained as the major diastereomer in most cases, and moderate enantiomeric