Copper iodide-catalyzed aziridination of alkenes with sulfonamides and sulfamate esters
作者:Joyce Wei Wei Chang、Thi My Uyen Ton、Zhengyang Zhang、Yanjun Xu、Philip Wai Hong Chan
DOI:10.1016/j.tetlet.2008.10.105
日期:2009.1
An efficient copper iodide-catalyzed aziridination of a variety of alkenes with sulfonamides and sulfamate esters as the nitrogen source and iodosylbenzene (PhIO) as the oxidant is reported herein. The reaction is operationally straightforward, applicable to a variety of alkenes containing electron-withdrawing, electron-donating, and sterically encumbered substrate combinations, and proceeds under
A process for the asymmetric aziridination of an alkene comprising treating the alkene with a sulfonyl azide, preferably trichloroethoxysulfonyl azide, in the presence of a cobalt(II) porphyrin.
[EN] ALKENE AZIRIDINATION<br/>[FR] AZIRIDINATION D'UN ALCÈNE
申请人:UNIV SOUTH FLORIDA
公开号:WO2010099206A2
公开(公告)日:2010-09-02
A process for the asymmetric aziridination of an alkene comprising treating the alkene with a sulfonyl azide, preferably trichloroethoxysulfonyl azide, in the presence of a cobalt(II) porphyrin.
Rh-catalyzed alkene oxidation: a highly efficient and selective process for preparing N-alkoxysulfonyl aziridines
作者:Kiran Guthikonda、Paul M. Wehn、Brian J. Caliando、J. Du Bois
DOI:10.1016/j.tet.2006.07.099
日期:2006.12
Unique alkoxysulfonyl aziridine heterocycles were prepared through selective intra- and intermolecular alkeneoxidation reactions. These methods are general and perform efficiently at low Rh-catalyst loadings (1–2 mol %) with only a slight excess of an inexpensive commercial oxidant, PhI(OAc)2. For intermolecular processes, trichloroethylsulfamate was identified as a novel and markedly effective N-atom