Copper-Catalyzed Oxidative Three-Component Synthesis of <i>N</i>, <i>N</i>′,<i>N</i>″-Trisubstituted Guanidines
作者:Jihui Li、Luc Neuville
DOI:10.1021/ol4029622
日期:2013.12.20
copper-catalyzed three-component synthesis of trisubstituted N-aryl guanidines involving cyanamides, arylboronic acids, and amines has been developed. This operationally simple oxidative process, which is performed in the presence of K2CO3, a catalytic amount of CuCl2·2H2O, bipyridine, and oxygen (1 atm), allows the rapid assembly of N,N′,N″-trisubstituted aryl guanidines.
已开发出一种铜催化的三取代三取代N-芳基胍的三组分合成方法,涉及氰胺,芳基硼酸和胺。这种操作简单的氧化过程,这是在K的存在下进行2 CO 3,氯化亚铜催化量2 ·2H 2 O,吡啶和氧气(1个大气压),允许快速组装-N,N ',Ñ “ -三取代的芳基胍。