Used primarily as an intermediate in organic synthesis, especially in the development of pharmaceuticals and agrochemicals. Its structure allows for selective functionalization, making it valuable in constructing complex quinoline-based molecules. Commonly employed in cross-coupling reactions such as Suzuki and Heck reactions to form carbon-carbon bonds. Also utilized in the preparation of bioactive compounds, including potential antimalarial and anticancer agents, due to the quinoline core's pharmacological relevance. Serves as a building block in medicinal chemistry for modifying electronic and steric properties of drug candidates.