This chemical is primarily utilized as a chiral ligand in asymmetric catalysis, particularly in transition metal-catalyzed reactions. Its unique structure, featuring a spirobi[inden] backbone and a phosphine group, makes it highly effective in inducing enantioselectivity in various organic transformations. It is commonly employed in hydrogenation reactions, where it helps produce chiral molecules with high enantiomeric purity, which are crucial in the synthesis of pharmaceuticals and fine chemicals. Additionally, its sterically hindered tert-butyl groups enhance stability and selectivity, making it suitable for challenging catalytic processes. This ligand is also explored in C-C bond-forming reactions, such as cross-coupling and cycloaddition, contributing to the development of complex organic compounds with precise stereochemistry.