Used as a chiral organocatalyst in asymmetric synthesis, particularly in enantioselective phosphorylation reactions. Its rigid polycyclic structure with multiple phenyl groups enhances stereoselectivity, making it effective in promoting the formation of chiral phosphorus-containing compounds. Widely applied in the preparation of optically active phosphates and phosphonates, which are key intermediates in pharmaceuticals and bioactive molecules. Shows high efficiency in catalyzing transformations under mild reaction conditions with excellent enantiomeric excess.