Rare Metal-Free Photo-Aerobic Intramolecular Dehydrogenative Cyclization Reaction towards Polycyclic Heteroarenes
作者:Eiji Yamaguchi、Yusuke Sudo、Norihiro Tada、Akichika Itoh
DOI:10.1002/adsc.201600291
日期:2016.10.20
We have achieved a rare‐metal‐free photo‐aerobic intramolecular dehydrogenative coupling reaction from two C—H bonds of indole with malonate. This catalytic system proceeded at room temperature under visible light irradiation with oxygen in the air as a terminal oxidant, and the cyclization products were obtained in good to excellent yields.
我们通过吲哚与丙二酸的两个CH键实现了无金属的无氧好氧分子内脱氢偶联反应。该催化体系在室温下在可见光照射下以空气中的氧作为末端氧化剂进行,并以良好至极好的收率获得环化产物。