Used as a chiral ligand in asymmetric catalysis, enabling the synthesis of enantiomerically pure compounds in pharmaceuticals and fine chemicals. Its rigid, bidentate structure enhances stereocontrol in metal-catalyzed reactions such as aldol, Michael, and Mannich reactions. Also employed in organocatalysis for promoting carbon–carbon bond-forming reactions with high enantioselectivity. Valued for its ability to induce chirality in transition-metal complexes, improving reaction efficiency and product purity.