Cobalt-catalyzed cross-coupling reactions of aryl- and alkylaluminum derivatives with (hetero)aryl and alkyl bromides

Abstract

A simple cobalt complex, such as Co(phen)Cl₂, turned out to be a highly efficient and cheap precatalyst for a host of cross-coupling reactions involving aromatic and aliphatic organoaluminum reagents with aryl, heteroaryl and alkyl bromides. New C(sp²)–C(sp²) and C(sp²)–C(sp³) bonds were formed in good to excellent yields and with high chemoselectivity, under mild reaction conditions.