A Homogeneous Method for the Conveniently Scalable Palladium- and Nickel-Catalyzed Cyanation of Aryl Halides
作者:Finn Burg、Julian Egger、Johannes Deutsch、Nicolas Guimond
DOI:10.1021/acs.oprd.6b00229
日期:2016.8.19
Homogeneous conditions for the palladium-catalyzed cyanation of aryl halides were developed. This new system features a broad scope of aryl chlorides and bromides, uses 2-propanol or 1-butanol as solvent, and is readily scalable. The same conditions can also provide simple benzonitriles using the recently developed (TMEDA)NiCl(o-tolyl) precatalyst in conjunction with 1,1′-bis(diphenylphosphino)ferrocene
提出了钯催化芳基卤化物氰化的均相条件。该新系统具有范围广泛的芳基氯和溴化物,使用2-丙醇或1-丁醇作为溶剂,并且易于扩展。使用最新开发的(TMEDA)NiCl(邻甲苯基)预催化剂结合1,1'-双(二苯基膦基)二茂铁(dppf)作为配体,相同的条件也可以提供简单的苄腈。