Used as a chiral ligand in asymmetric catalysis, particularly in enantioselective organic transformations such as C–C bond-forming reactions. Its sterically hindered, axially chiral structure makes it effective in inducing high enantioselectivity when coordinated to transition metals like rhodium, ruthenium, or palladium. Commonly employed in asymmetric hydrogenation, allylic alkylation, and conjugate addition reactions, especially in the synthesis of pharmaceuticals and fine chemicals where precise stereochemical control is critical. The ligand’s robust framework and tunable electronic properties allow for efficient catalyst recycling and improved reaction yields under mild conditions.