Rhodium(III)-Catalyzed Cyclopropanation of Unactivated Olefins Initiated by C–H Activation
作者:Erik J. T. Phipps、Tiffany Piou、Tomislav Rovis
DOI:10.1055/s-0039-1690130
日期:2019.9
We have developed a Rh(III)-catalyzed cyclopropanation of unactivated olefins initiated by an alkenyl C-H activation. A variety of 1,1-disubstituted olefins undergo efficient cyclopropanation with a slight excess of alkene stoichiometry. A series of mechanistic interrogations implicate a metal-carbene as an intermediate.
我们开发了一种由烯基 CH 活化引发的 Rh(III) 催化未活化烯烃的环丙烷化反应。多种 1,1-二取代烯烃在烯烃化学计量稍微过量的情况下进行有效的环丙烷化。一系列的机械询问表明金属卡宾是一种中间体。