Used as a chiral bidentate ligand in asymmetric catalysis, particularly in rhodium- and ruthenium-catalyzed enantioselective hydrogenation reactions. It plays a key role in the synthesis of chiral molecules, especially in pharmaceutical and fine chemical industries where high enantioselectivity is required. Its rigid backbone and stereodefined phosphorus centers enhance stereocontrol, making it effective for converting prochiral alkenes and ketones into optically active products. Commonly applied in the production of chiral alcohols and amines, which are key intermediates in drug development.