Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions, enabling the synthesis of complex quinoline derivatives with pharmaceutical and agrochemical relevance. Its boronate ester group facilitates mild, selective bond formation with aryl halides, making it valuable in drug discovery and materials science. Commonly applied in the preparation of fluorescent probes and organic semiconductors due to the quinoline core’s electronic properties. Also utilized in medicinal chemistry for constructing libraries of bioactive molecules targeting kinases and other enzymes.