Photoredox‐Coupled F‐Nucleophilic Addition: Allylation of
<i>gem</i>
‐Difluoroalkenes
作者:Haidong Liu、Liang Ge、Ding‐Xing Wang、Nan Chen、Chao Feng
DOI:10.1002/anie.201814308
日期:2019.3.18
which otherwise are essentially reluctant towards F‐nucleoplilic addition, now readily participate in this fluoroallylation reaction. Furthermore, this strategy provides an elegant example for the generation, as well as functionalization, of α‐CF3‐substituted benzylic radical intermediates using cheap and readily available starting materials.
利用光氧化还原催化技术,开发了一种新的策略,可方便地构建嵌入CF 3的三级/四级碳中心。由于单电子氧化的关键步骤,富含电子的宝石-二氟烯烃本来就不愿进行F-核苷的加成反应,现在可以轻松地参与该氟代芳基化反应。此外,该策略提供了一个优雅例如用于发电,以及官能化,α-CF 3 -取代的使用便宜和容易获得的起始原料苄自由基中间体。