Catalyst-free, High-yield, and Stereospecific Synthesis of 3-Phenylthio β-Lactam Derivatives
作者:Jiaxi Xu、Lei Jiao、Yong Liang、Qianfeng Zhang、Shiwei Zhang
DOI:10.1055/s-2006-926291
日期:——
ketenes in the Staudinger reaction. On the basis of the reactions of S-phenyl diazothioacetate with imines under the catalysis of Rh 2 (OAc) 4 a method for the synthesis of 3-phenylthio β-lactam derivatives has been developed previously. In this paper, a more convenient and improved procedure was achieved, which simplified the synthesis of S-phenyl diazothioacetate and made the reaction work well without
α-重氮羰基化合物是乙烯酮在施陶丁格反应中的良好前体。基于重氮硫代乙酸 S-苯基与亚胺在 Rh 2 (OAc) 4 催化下的反应,之前已经开发了一种合成 3-苯硫基 β-内酰胺衍生物的方法。在本文中,实现了一种更方便和改进的程序,简化了重氮硫代乙酸S-苯基酯的合成,使反应在不使用昂贵的Rh 2 (OAc) 4 催化剂的情况下顺利进行。S-苯基重氮硫代乙酸酯与多种亚胺的无催化剂反应以良好至优异的收率立体定向生成单环和多环 β-内酰胺。