Used as a chiral ligand in asymmetric catalysis, particularly in transition metal-catalyzed reactions such as hydrogenation and cross-coupling. Its phosphine moiety coordinates effectively with metals like rhodium, ruthenium, and palladium, enabling high enantioselectivity in the synthesis of pharmaceutical intermediates. The rigid quinuclidine and quinoline frameworks enhance stereochemical control, making it valuable in the production of optically active compounds, including bioactive molecules and fine chemicals. Commonly applied in research settings for developing enantioselective synthetic routes.