Widely used as a chiral ligand in asymmetric catalysis, this compound plays a key role in enantioselective transformations, particularly in rhodium- and ruthenium-catalyzed hydrogenation reactions. It is especially effective in the asymmetric hydrogenation of prochiral olefins, imines, and ketones, enabling the synthesis of optically active compounds with high enantiomeric excess. Its bidentate phosphine structure provides strong metal coordination and excellent stereocontrol, making it valuable in the production of pharmaceutical intermediates and fine chemicals where chirality is critical. The sulfinamide group enhances stability and facilitates ligand tuning for specific reactivity and selectivity.