Used as a chiral ligand in asymmetric catalysis, particularly in enantioselective organic transformations such as hydrogenation and carbon-carbon bond-forming reactions. Its bulky, sterically hindered structure enhances stereocontrol, making it valuable in the synthesis of optically active pharmaceuticals and fine chemicals. Commonly employed in transition metal complexes with ruthenium, rhodium, or iridium to achieve high enantioselectivity.