Regioselective Double Hydrophosphination of Terminal Arylacetylenes Catalyzed by an Iron Complex

Abstract

The first catalytic double hydrophosphination of alkynes was achieved by reaction with diarylphosphines in the presence of an iron catalyst. The double hydrophosphination proceeded regioselectively and effectively for various secondary arylphosphines and terminal alkynes to give 1,2-bisphosphinoethane derivatives.