Used as a chiral organocatalyst in asymmetric synthesis, particularly in enantioselective phosphorylation and esterification reactions. Its rigid bis-naphthyl backbone and stereogenic phosphorus center enable high enantioselectivity in the formation of chiral phosphate esters, which are key intermediates in pharmaceuticals and bioactive molecules. Also employed in the development of stereoselective transformations in complex molecule synthesis due to its strong Lewis basicity and stability under mild reaction conditions.