Used in organic synthesis as an intermediate for pharmaceuticals, particularly in the development of antiviral and anticancer agents. Its structure allows for selective functionalization, making it valuable in the construction of nitrogen-containing heterocyclic compounds. Commonly employed in cross-coupling reactions, such as Suzuki and Heck reactions, to form biaryl systems for drug discovery research. Also utilized in the synthesis of quinoline-based fluorescent probes for biochemical imaging due to its favorable photophysical properties.