Selective Mono-Alkylation and Arylation of Dichlorobenzenes by Palladium-Catalyzed Grignard Cross-Coupling

Abstract

Abstract Palladium(II)–phosphine complexes, especially PdCl2(dppf) where dppf stands for 1,1′-bis(diphenylphosphino)ferrocene, are effective catalysts for the cross-coupling of Grignard reagents with dichlorobenzenes to produce selectively mono-alkylated and arylated benzenes. The addition of ligands is also effective for the cross-coupling of Grignard reagents containing a β-hydrogen(s).