Widely used in cross-coupling reactions, especially in Suzuki-Miyaura coupling, to construct biaryl and heteroaryl frameworks in pharmaceutical and agrochemical synthesis. Its boronate ester group readily reacts with aryl or heteroaryl halides in the presence of palladium catalysts, enabling efficient formation of carbon-carbon bonds. Commonly employed in the preparation of complex pyridine-containing molecules for drug discovery and materials science due to its stability and reactivity profile.