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.