α,β-Divinyl Tetrahydropyrroles as Chiral Chain Diene Ligands in Rhodium(l)-Catalyzed Enantioselective Conjugated Additions

A series of alpha,beta-divinyl tetrahydropyrroles, synthesized by asymmetric allylic C-H bond activation/conjugated diene addition reaction of ene-2-dienes, were found to be very efficient chiral chain diene ligands in the rhodium-catalyzed conjugated addition of organoboronic acids to various alpha,beta-unsaturated compounds, achieving the desired chiral adducts with good to excellent yields and ee values.