Copper-Catalyzed Tethered Aziridination of Unsaturated <i>N-</i>Tosyloxy Carbamates
作者:Renmao Liu、Steven R. Herron、Steven A. Fleming
DOI:10.1021/jo0705014
日期:2007.7.1
nitrene addition to alkenes. The carbamate group was used as the tether between the alkene and the nitrene. Subsequent nucleophilic attack of the aziridine was accomplished using RSH, R2NH, N3-, or ROH as the nucleophile. This addition was found to be regio- and stereoselective. This methodology has been used to demonstrate its utility in the regio- and stereoselective synthesis of a 1,2-diamino-3-hydroxycyclohexane
氮丙啶是通过铜催化的分子内氮烯加成烯烃而形成的。氨基甲酸酯基团被用作烯烃和腈之间的系链。氮丙啶的后续亲核攻击是使用RSH完成,R 2 NH,N 3 - ,或ROH作为亲核试剂。发现这种添加是区域和立体选择性的。该方法已用于证明其在1,2-二氨基-3-羟基环己烷的区域和立体选择性合成中的效用。这种替代模式存在于天然产品(例如达菲)中。