Palladium-Catalyzed, <i>ortho</i>-Selective C–H Halogenation of Benzyl Nitriles, Aryl Weinreb Amides, and Anilides
作者:Riki Das、Manmohan Kapur
DOI:10.1021/acs.joc.6b02731
日期:2017.1.20
ortho-selective C–H halogenation methodology is reported herein. The highlight of the work is the highly selective C(sp2)–H functionalization of benzyl nitriles in the presence of activated C(sp3)–H bond, which results in good yields of the halogenated products with excellent regioselectivity. Along with benzyl nitriles, aryl Weinreb amides and anilides have been evaluated for the transformation using aprotic
本文报道了钯催化的邻位选择性C–H卤化方法。这项工作的重点是在存在活化的C(sp 3)-H键的情况下对苄腈进行高选择性的C(sp 2)-H官能化,这将导致卤代产物的良好收率和极好的区域选择性。与苄基腈一起,已经评估了使用非质子条件转化的芳基Weinreb酰胺和苯胺化物的转化率。机理研究在反应途径和指导小组能力方面产生了有趣的方面。