Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions for the synthesis of complex quinoline derivatives. Its boronate ester group enables efficient carbon-carbon bond formation, making it valuable in pharmaceutical and agrochemical research. Commonly applied in the development of bioactive molecules, fluorescent probes, and organic electronic materials due to the quinoline core’s favorable photophysical properties. Ideal for constructing conjugated systems in medicinal chemistry and materials science.