Used as a ligand precursor in transition metal catalysis, particularly in the development of phosphine-based catalysts for cross-coupling reactions. Its pyridine backbone enhances metal coordination stability, while the tert-butyl group provides steric bulk, improving selectivity in catalytic processes. Commonly employed in palladium-catalyzed transformations such as Suzuki and Heck reactions. Also utilized in the synthesis of functionalized organophosphorus compounds for materials science and pharmaceutical applications.