Practical Synthesis of Halogenated
<i>N</i>
‐Heterocycles via Electrochemical Anodic Oxidation of Unactivated Alkenes
作者:Yanyang He、Xiaowen Qin、Xinxu He、Xiao‐Feng Wu、Zhiping Yin
DOI:10.1002/ejoc.202101189
日期:2021.11.15
A general and efficient intramolecular halo-amination of unactivated alkenes for the synthesis of various halogenated N-heterocycles was developed via electrochemical anodic oxidation. This protocol proceeds in a simple undivided cell by employing LiI or LiBr as redox mediums and halogen sources. A wide range of halogenated N-heterocycles, including three-, five-, and six-membered N-heterocycles were
通过电化学阳极氧化开发了用于合成各种卤化N-杂环的未活化烯烃的通用且有效的分子内卤化胺化。该协议通过使用 LiI 或 LiBr 作为氧化还原介质和卤素源,在一个简单的未分隔单元中进行。在室温下以中等至良好的产率构建了范围广泛的卤化N-杂环,包括三元、五元和六元N-杂环。值得注意的是,这种电化学氧化转化避免了使用外部氧化剂和强碱,因此代表了一种环境友好的方法。