Bromomethyl Silicate: A Robust Methylene Transfer Reagent for Radical-Polar Crossover Cyclopropanation of Alkenes
作者:Wenping Luo、Yewen Fang、Li Zhang、Tianhang Xu、Yongjun Liu、Yan Li、Xiaoping Jin、Jiakan Bao、Xiaodong Wu、Zongyong Zhang
DOI:10.1002/ejoc.202000134
日期:2020.3.22
new bifunctional C1 synthon: With bromomethyl silicate as a CH2 source, visible‐light‐induced cyclopropanation has been demonstrated to be amenable to the alkenes including Michael acceptors, styrene derivatives, and unactivated 1,1‐dialkyl ethylenes. In addition to the broad substrate scope, this radical‐polar crossover process is also characterized by its redox‐neutral process, mild conditions, and
一种新的双功能C1合成子:以溴代甲基硅酸盐为CH 2来源,可见光诱导的环丙烷化反应适用于烯烃,包括Michael受体,苯乙烯衍生物和未活化的1,1-二烷基乙烯。除了广泛的底物范围外,这种自由基-极性交叉过程还具有氧化还原中性过程,温和条件和良好的官能团相容性的特点。