Regioselective Arene and Heteroarene Functionalization: <i>N</i>-Alkenoxypyridinium Salts as Electrophilic Alkylating Agents for the Synthesis of α-Aryl/α-Heteroaryl Ketones
作者:Rong L. Zhai、Yun S. Xue、Ting Liang、Jia J. Mi、Zhou Xu
DOI:10.1021/acs.joc.8b01388
日期:2018.9.7
electrophilic alkylating agents for the synthesis of α-aryl/heteroaryl ketones has been developed. The method generates alkylating agents from alkynes and N-pyridine oxide followed by site-selective electrophilic substitution with a broad range of arenes and heteroarenes including benzene derivates, phenols, ethers, indoles, pyrroles, furans, and thiophenes in one pot. Kinetic isotope effect measurements
已经开发了使用N-烯氧基吡啶鎓盐作为用于合成α-芳基/杂芳基酮的亲电烷基化剂的对芳烃和杂芳烃的直接区域选择性官能化。该方法在一锅中由炔烃和N-吡啶氧化物生成烷化剂,然后用多种芳烃和杂芳烃进行位点选择性亲电子取代,这些芳烃和杂芳烃包括苯衍生物,苯酚,醚,吲哚,吡咯,呋喃和噻吩。动力学同位素效应测量和DFT研究表明,该反应可能通过碳阳离子中间体进行。