Ruthenium-Catalyzed Para-Selective Oxidative Cross-Coupling of Arenes and Cycloalkanes
作者:Xiangyu Guo、Chao-Jun Li
DOI:10.1021/ol202081c
日期:2011.10.7
A novel, direct para-selective oxidativecross-coupling of benzene derivatives with cycloalkanes catalyzed by ruthenium was developed. A wide range of arenes bearing electron-withdrawing substituents was functionalized directly with simple cycloalkanes with high para-selectivity; arenes with electron-donating groups were mainly para-functionalized. Benzoic acid can be used directly.
by coupling the electrogeneratedalkylradicals with electron deficient (hetero)arenes in an undivided cell. Simultaneous cathodic reduction of both unactivated alkylhalides and cyanobenzenes under high potential enables radical–radical cross-coupling to deliver alkylarenes in the absence of transition metals. Depending on the coupling partner, the electrogeneratedalkylradicals can also proceed