Widely used as a chiral ligand in asymmetric catalysis, this compound plays a key role in enantioselective transformations such as palladium-catalyzed cross-coupling reactions and rhodium-catalyzed hydrogenations. Its sterically hindered, electron-rich phosphine group enhances metal coordination and stabilizes catalytic intermediates, leading to high enantioselectivity. It is particularly effective in the synthesis of chiral biaryl compounds and pharmaceutical intermediates where precise stereochemical control is required. The sulfinamide moiety allows for easy recovery and reuse in some cases, making it valuable in both academic research and industrial processes focused on asymmetric synthesis.