Used as a chiral ligand in asymmetric catalysis, particularly in palladium-catalyzed cross-coupling reactions and enantioselective transformations. Its sterically hindered structure and electron-rich phosphine groups enhance catalytic activity and stereocontrol. Commonly applied in the synthesis of chiral biaryl compounds and natural products where high enantioselectivity is required. Effective in Suzuki-Miyaura and Buchwald-Hartwig reactions when precise chirality transfer is needed.