Aziridination of Activated Imines with Monocarbonyl Iodonium Ylides Generated from (<i>Z</i>)-(2-Acetoxyvinyl)iodonium Salts via Ester Exchange: Stereoselective Synthesis of 2-Acylaziridines
作者:Masahito Ochiai、Yutaka Kitagawa
DOI:10.1021/jo982346m
日期:1999.4.1
Monocarbonyl iodonium ylides, generated in situ from (Z)-(2-acetoxyvinyl)iodonium salts via an ester exchange reaction with EtOLi, undergo alkylidene transfer reactions to activated imines yielding 2-acylaziridines in good yields. The stereochemical outcome of this aziridination was shown to be dependent on both the activating groups of the imines and the reaction solvents: that is, the aziridination
由(Z)-(2-乙酰氧基乙烯基)碘鎓盐通过与EtOLi的酯交换反应原位生成的单羰基碘鎓烷基化物经过亚烷基转移到活化的亚胺上,生成高产率的2-酰基氮丙啶。已显示出这种叠氮化的立体化学结果取决于亚胺的活化基团和反应溶剂:也就是说,N-(2,4,6-三甲基苯磺酰基)亚胺在THF中的叠氮化提供了顺式叠氮基而在THF-DMSO或THF中,N-苯并嘧啶的主要产物可立体选择性地产生反式异构体。