Used as a chiral organocatalyst in asymmetric synthesis, particularly in enantioselective transformations where high stereocontrol is required. Its rigid, sterically hindered structure with multiple phenyl groups enhances selectivity in reactions such as asymmetric allylations, aldol condensations, and phosphorylation of alcohols. Commonly employed in pharmaceutical synthesis to construct chiral centers with high optical purity. Also applied in coordination chemistry as a ligand for transition metals in catalytic systems, improving enantioselectivity in hydrogenation and cross-coupling reactions.