Asymmetric Catalytic Synthesis of Enantiopure <i>N</i>-Protected 1,2-Amino Alcohols
作者:Giuseppe Bartoli、Marcella Bosco、Armando Carlone、Manuela Locatelli、Paolo Melchiorre、Letizia Sambri
DOI:10.1021/ol048322l
日期:2004.10.1
resolution (AKR) of racemic terminal epoxides using carbamates as the nucleophile catalyzed by (salen)Co(III) complex provides a practical and straightforward method for the synthesis of both aliphatic and aromatic N-Boc- or N-Cbz-protected 1,2-amino alcohols in almost enantiomerically pure form (ee >/= 99%). The AKR uses an easily accessible catalyst and inexpensive starting materials, and the reactions are
[反应:见正文]以氨基甲酸酯为亲核试剂,以氨基甲酸酯为外消旋末端环氧化物的不对称氨基分解动力学拆分(AKR),为脂肪族和芳香族N-Boc的合成提供了一种实用而直接的方法-或对映体纯的形式(ee> / = 99%)的N-Cbz保护的1,2-氨基醇。AKR使用易于获得的催化剂和廉价的原料,并且反应可在室温,空气气氛下方便地进行。