Used as a bidentate ligand in transition metal catalysis, particularly in palladium- and nickel-catalyzed cross-coupling reactions. Its bulky dicyclohexylphosphino groups provide strong electron donation and steric protection, enhancing catalyst stability and activity. Commonly applied in Suzuki, Heck, and Negishi couplings for forming carbon-carbon bonds in organic synthesis. Also employed in asymmetric catalysis when coordinated to chiral metal centers, enabling enantioselective transformations. The ligand’s rigidity from the ortho-phenylene backbone helps maintain defined geometry around the metal, improving selectivity in catalytic processes.