Electrochemical halogenation/semi-pinacol rearrangement of allylic alcohols using inorganic halide salt: an eco-friendly route to the synthesis of β-halocarbonyls
作者:Chao Chen、Jun-Chen Kang、Chen Mao、Jia-Wei Dong、Yu-Yang Xie、Tong-Mei Ding、Yong-Qiang Tu、Zhi-Min Chen、Shu-Yu Zhang
DOI:10.1039/c9gc01152h
日期:——
An efficient and eco-friendly electrochemical method involving halogenation/semi-pinacol rearrangement of allylic alcohols using inorganic halide salt as the halogen source to synthesize various β-halocarbonyls bearing an all-carbon α-quaternary center under mild reaction conditions has been developed (X = Br, Cl). Stoichiometric oxidants, metal catalysts, and even external electrolytes were avoided
已开发出一种高效,环保的电化学方法,该方法涉及使用无机卤化物盐作为卤素源,对烯丙醇进行卤化/半频哪醇重排,以在温和的反应条件下合成带有全碳α-季中心的各种β-卤代羰基化合物(X = Br,Cl)。该方法避免了化学计量的氧化剂,金属催化剂,甚至外部电解质。发现整个反应体系与水中各种常见的干扰离子相容,并且对溴离子显示出良好的选择性。此外,可以从模拟废水中高效提取卤素资源,以构建用于合成天然产物(±)-加兰他敏和(±)-Crinamine的关键中间体。此外,