Used as a chiral ligand in asymmetric catalysis, particularly in transition-metal-catalyzed reactions such as asymmetric hydrogenation and cross-coupling reactions. Its rigid oxazoline backbone and stereogenic centers enable high enantioselectivity, making it valuable in the synthesis of chiral pharmaceuticals and fine chemicals. The diphenylphosphine group facilitates strong coordination to metals like rhodium, ruthenium, and palladium, enhancing catalytic activity and stereocontrol. Commonly employed in academic and industrial research for developing enantiopure compounds.