Used in advanced catalytic asymmetric synthesis, particularly in enantioselective transformations where chiral phosphine ligands are required. Its rigid diazocine backbone and embedded epoxyphosphane oxide moiety make it effective in coordinating transition metals for use in stereoselective C–C and C–heteroatom bond-forming reactions. Commonly applied in pharmaceutical intermediates synthesis, where high enantiomeric purity is critical. Also explored in materials science for designing chiral sensors and asymmetric catalysts for fine chemical production.