Used as a chiral ligand in asymmetric catalysis, particularly in enantioselective transformations such as hydrogenation and transfer hydrogenation reactions. Its rigid naphthyl groups and defined stereochemistry enhance stereoselectivity, making it valuable in the synthesis of chiral amines and pharmaceuticals. Also employed in coordination chemistry to form complexes with transition metals like ruthenium and rhodium, which serve as efficient catalysts in fine chemical production.