Reversal Diastereoselectivity Between the Organomagnesium and Organolithium Reagents on Chiral <i>N</i>-<i>Tert</i>-Butylsulfinylaldimines for the Preparation of Chiral Amines
作者:Chinnapillai Rajendiran、Periyandi Nagarajan、A. Naidu、P. K. Dubey
DOI:10.1080/00397911.2014.909487
日期:2014.10.18
Abstract The asymmetric synthesis of both the enantiomer of chiral amines from the single chiral source of N-tert-butylsulfinylaldimines (3) by simply changing the organometallic reagents through diastereoselective addition. An efficient enantioselective synthesis of chiral amines including (S)-3-methyl-1-(2-piperidin-1-yl-phenyl)butyl amine (6a), a key intermediate to prepare antidiabetic drug repaglinide
摘要 通过非对映选择性加成简单地改变有机金属试剂,从 N-叔丁基亚磺酰基醛亚胺 (3) 的单一手性来源不对称合成两种手性胺的对映异构体。报告了一种有效的对映选择性合成手性胺,包括 (S)-3-甲基-1-(2-哌啶-1-基-苯基) 丁胺 (6a),这是制备抗糖尿病药物瑞格列奈 (1) 的关键中间体。图形概要