Used as a chiral organocatalyst in asymmetric synthesis, particularly in enantioselective phosphorylation and C–C bond-forming reactions. Its rigid naphthyl-containing structure enhances stereocontrol, making it valuable in the preparation of optically active pharmaceuticals and fine chemicals. The compound is also employed in coordination chemistry as a ligand for transition metals in catalytic systems, supporting asymmetric hydrogenation and transfer hydrogenation processes. Its phosphorus center and stereogenic sites contribute to high enantioselectivity in various transformations.