Regioselective Vinylation of Remote Unactivated C(sp<sup>3</sup>)−H Bonds: Access to Complex Fluoroalkylated Alkenes
作者:Shuo Wu、Xinxin Wu、Dongping Wang、Chen Zhu
DOI:10.1002/anie.201812927
日期:2019.1.28
particular functional group into aliphatic sites by direct activation of unreactive C−H bonds is of great synthetic value. Despite advances in radical‐mediated functionalization of C(sp3)−H bonds by a hydrogen‐atom transfer process, the site‐selective vinylation of remote C(sp3)−H bonds still remains underexplored. Reported herein is a new protocol for the regioselective vinylation of unactivated C(sp3)−H
通过直接活化未反应的CH键将特定的官能团区域选择性地引入脂族位置具有很大的合成价值。尽管通过氢原子转移过程在自由基介导的C(sp 3)-H键的官能化方面取得了进展,但远端C(sp 3)-H键的位点选择性乙烯基化仍处于探索中。本文报道的是一种新的协议,用于未激活的C(sp 3)-H键的区域选择性乙烯基化。远程C(sp 3)-H活化是由以C为中心的自由基而不是常用的N和O自由基促进的。该反应具有很高的产物多样性和合成效率,提供了大量合成有价值的E 带有三/二/单氟甲基和全氟烷基的烯烃