This chemical is primarily used as a chiral ligand in asymmetric catalysis, particularly in transition metal-catalyzed reactions. It plays a crucial role in facilitating enantioselective transformations, such as hydrogenation, carbon-carbon bond formation, and other stereospecific reactions. Its unique structure, featuring a spirobi[inden] core and a phosphine group, enhances its ability to induce high enantioselectivity and reactivity in catalytic processes. This makes it valuable in the synthesis of pharmaceuticals, fine chemicals, and other complex organic molecules where precise stereochemical control is essential. Additionally, its application extends to the development of advanced materials and agrochemicals, where asymmetric synthesis is increasingly important.