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
Monocarbonyliodoniumylides, 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
Reaction of monocarbonyl iodonium ylides with activated imines: Stereoselective synthesis of trans- and cis-α,β-aziridino ketones
作者:Masahito Ochiai、Yutaka Kitagawa
DOI:10.1016/s0040-4039(98)01122-8
日期:1998.7
Monocarbonyliodoniumylides, generated in situ from Z-(2-acetoxyvinyl)iodonium salts via ester exchange reaction with EtOLi, undergo alkylidene-transfer reactions to activated imines yielding α,β-aziridino ketones. The aziridination of N-(2,4,6-trimethylbenzenesulfonyl)imines in THF affords cis-aziridines as a major product, while that of N-benzoylimines in THF-DMSO gives the trans-isomer stereoselectively