Used as a chiral ligand in asymmetric catalysis, particularly in transition metal-catalyzed reactions such as hydrogenation and cross-coupling. Its phosphorus-containing heterocyclic structure with a stereogenic center enables high enantioselectivity in the synthesis of chiral molecules. Widely applied in pharmaceutical and fine chemical industries for producing enantiomerically pure compounds. Effective in palladium and rhodium complexes where its steric bulk and electronic properties enhance catalytic activity and selectivity. Also employed in the development of new asymmetric transformations due to its stability under various reaction conditions.