Photo‐Induced Halogen‐Atom Transfer: Generation of Halide Radicals for Selective Hydrohalogenation Reactions
作者:Lilian Geniller、Marc Taillefer、Florian Jaroschik、Alexis Prieto
DOI:10.1002/chem.202201495
日期:2022.8
The first photo-mediated process enabling the generation of halide radicals by halogen-atom transfer (XAT) is described. This novel reactivity pattern relies on the use of 1,2-dihaloethanes for the generation of unstable carbon radicals by XAT, which after β-scission, release halide radicals that have been used in selective hydrohalogenations of unsaturated hydrocarbons.
描述了第一个能够通过卤素原子转移 (XAT) 产生卤化物自由基的光介导过程。这种新颖的反应模式依赖于使用 1,2-二卤乙烷通过 XAT 生成不稳定的碳自由基,XAT 在 β 断裂后释放卤化物自由基,这些卤化物自由基已用于不饱和烃的选择性卤化氢。