Used as a chiral organocatalyst in asymmetric synthesis, particularly in enantioselective transformations where high stereocontrol is required. Its sterically bulky structure and stable phosphine oxide framework make it effective in promoting reactions such as asymmetric allylic alkylation and other carbon–carbon bond-forming processes. The compound’s design allows for strong substrate activation through hydrogen bonding and electrostatic interactions, while its rigidity enhances enantioselectivity. It is especially valued in pharmaceutical synthesis for constructing chiral centers with high optical purity.