Used as a chiral bidentate phosphine ligand in asymmetric catalysis, particularly in transition metal-catalyzed reactions such as hydrogenation, allylic alkylation, and cross-coupling transformations. Its stereochemistry and electron-rich dimethylamino groups enhance enantioselectivity and catalytic efficiency. Commonly coordinates with rhodium, ruthenium, or palladium to form complexes that enable high enantiomeric excess in the synthesis of pharmaceuticals and fine chemicals. Valued for its ability to induce chirality transfer in stereoselective synthesis.