Used as a highly selective chiral catalyst in asymmetric synthesis, particularly in enantioselective transformations such as hydrogenation and C–C bond-forming reactions. Its rigid, sterically hindered structure with multiple trifluoromethyl and sulfonyl groups enhances enantiocontrol and stability under harsh reaction conditions. Commonly applied in pharmaceutical synthesis where high optical purity is required. Also employed in advanced materials research due to its unique phosphorus-based polycyclic framework, contributing to the design of chiral ligands and organocatalysts.