Heck Reaction with Heteroaryl Halides in the Presence of a Palladium-Tetraphosphine Catalyst.

Abstract cis , cis , cis -1,2,3,4-Tetrakis(diphenylphosphinomethyl)cyclopentane/ 1 2 [PdCl(C3H5)]2 system catalyses efficiently the Heck reaction of heteroaryl halides with n -butyl acrylate, styrene, vinylpyridine and vinyl ether derivatives. High turnover numbers can be obtained for the reactions with halo pyridines, quinolines, furans or thiophenes.