Used as a chiral ligand in asymmetric catalysis, particularly in enantioselective synthesis of pharmaceuticals and fine chemicals. Its rigid naphthyl groups enhance stereocontrol in transition metal-catalyzed reactions such as asymmetric hydrogenation and carbon-carbon bond-forming reactions. Commonly employed with rhodium or ruthenium complexes to achieve high enantiomeric excess in the production of chiral amines and alcohols. Also utilized in the development of chiral sensors and resolution of racemic mixtures due to its strong stereoselective interactions.