Widely used as a chiral ligand in asymmetric catalysis, this compound plays a key role in enantioselective transformations, particularly in rhodium- or palladium-catalyzed reactions. It is especially effective in asymmetric hydrogenation of olefins and carbonyl compounds, where high enantiomeric excess (ee) is required. Its steric bulk and well-defined chiral environment enhance selectivity, making it valuable in the synthesis of pharmaceutical intermediates and fine chemicals. The presence of phosphine oxide functionality also allows for potential coordination tuning and catalyst recovery in some systems.