Synthesis of Chiral α-Substituted ß-Aminophosphine Derivatives through Asymmetric Hydrophosphinylation Utilizing Secondary Phosphine Sulfides.

The organocatalytic enantioselective hydrophosphinylation of various secondary phosphine sulfides with aromatic and aliphatic nitroalkenes is presented in this study. The reaction produced chiral ß-nitrophosphine sulfides with excellent yields and enantioselectivities (up to 99% yield and 99% ee). Furthermore, the chiral ß-nitrophosphine sulfides can be easily converted into α-substituted ß-aminophosphine, which is a family of useful P, N-ligands and phosphine catalysts.