Catalytic Enantioselective Carbon Insertion into the β-Vinyl C–H Bond of Cyclic Enones
作者:Sung Il Lee、Geum-Sook Hwang、Do Hyun Ryu
DOI:10.1021/ja402873b
日期:2013.5.15
Chiral oxazaborolidinium ion-catalyzed C-sp(2)-H functionalization of enones using diazoacetate has been developed. Various beta-substituted cyclic enones were synthesized in high yield (up to 99%) with high to excellent enantioselectivity (up to 99% ee). The synthetic utility of this reaction was demonstrated by the formal synthesis of (+)-epijuvabione.