Used as a specialized ligand in transition metal catalysis, particularly in palladium-catalyzed cross-coupling reactions. Its sterically bulky phosphine group enhances catalyst stability and influences selectivity, making it effective in Suzuki–Miyaura and Buchwald–Hartwig aminations. The electron-rich nature of the phosphine moiety promotes oxidative addition steps, improving reaction efficiency under mild conditions. Commonly employed in pharmaceutical synthesis and materials science where high catalytic activity and functional group tolerance are required.