Asymmetric synthesis of a P-chiral heteroditopic ligand via chiral metal template promoted cycloaddition between 3,4-dimethyl-1-phenylphosphole and its sulfonated analog

A novel chiral heteroditopic ligand has been synthesized via asymmetric [4+2] Diels-Alder reaction involving 3,4-dimethyl-1-phenylphosphole, and its P-sulfonated analogue utilizing the palladium(II) template complex containing ortho-metalated (R)-(1-(dimethylamino)ethyl)naphthalene as the chiral auxiliary.