Formation of Functionalized 2<i>H</i>-Azirines through PhIO-Mediated Trifluoroethoxylation and Azirination of Enamines
作者:Xiaoqian Sun、Youran Lyu、Daisy Zhang-Negrerie、Yunfei Du、Kang Zhao
DOI:10.1021/ol4030716
日期:2013.12.20
A variety of enaminones and enamine carboxylic esters were converted to trifluoroethoxylated 2H-azirines through reactions with PhIO in trifluoroethanol (TFE). The cascade reaction is postulated to proceed via a PhIO-mediated oxidative trifluoroethoxylation and a subsequent azirination of the alpha-trifluoroethoxylated enamine intermediates.