Radical Cyclization of Alkene-Tethered Ketones Initiated by Hydrogen-Atom Transfer
作者:Mar Saladrigas、Caroline Bosch、Gisela V. Saborit、Josep Bonjoch、Ben Bradshaw
DOI:10.1002/anie.201709659
日期:2018.1.2
An unprecedented C−C coupling reaction between alkenes and ketones by hydrogen‐atom transfer, using Fe(acac)3 and PhSiH3 in EtOH, is described. This mild protocol features high site selectivity and allows the construction of sterically congested structures containing tertiary alcohols and quaternary centers. The overall process introduces a novel strategic bond disconnection for ring‐closing reactions
描述了在EtOH中使用Fe(acac)3和PhSiH 3通过氢原子转移实现烯烃与酮之间前所未有的C-C偶联反应。这种温和的方案具有很高的位点选择性,并允许构建含有叔醇和季中心的空间拥挤结构。整个过程为开环反应引入了一种新颖的策略性键断开。