Visible-Light Photoredox-Catalyzed Iminyl Radical Formation by N–H Cleavage with Hydrogen Release and Its Application in Synthesis of Isoquinolines
作者:Wan-Fa Tian、Dang-Po Wang、Shao-Feng Wang、Ke-Han He、Xiao-Ping Cao、Yang Li
DOI:10.1021/acs.orglett.8b00193
日期:2018.3.2
An unprecedented visible-light photoredox-catalyzed iminyl radical formation by N-H cleavage with H2 release has been developed. Its application in the synthesis of various isoquinolines and related polyaromatics in high atom economy at ambient temperature by applying a photosensitizer, Acr+-Mes ClO4-, and a new cobalt catalyst, Co(dmgH)2(4-CONMe2Py)Cl is reported. Mechanistic investigations indicated
已经开发出前所未有的可见光通过氧化还原和释放H2的光氧化还原催化的亚氨基自由基的形成。报道了其在环境温度下通过应用光敏剂Acr + -Mes ClO4-和新型钴催化剂Co(dmgH)2(4-CONMe2Py)Cl在高原子经济性下合成各种异喹啉和相关聚芳烃的应用。机理研究表明,生成的亚氨基自由基引发了级联CN / CC键的形成,并且通过同时的氧化和还原猝灭途径发生了催化循环。