Quinolines are aromatic heterocyclic compounds that have a benzene ring and a pyridine ring connected in their structure. These compounds are of great importance due to their unique chemical and biological properties and are used in various industries. In medicinal chemistry, quinolines play an important role in the development of antimalarial drugs (such as chloroquine), anticancer, antibacterial and anti-inflammatory drugs. These compounds are also used as precursors in the synthesis of many other chemicals. In industry, quinolines are used as solvents, catalysts and intermediates in the production of dyes, resins and polymers. Their importance has led to their involvement in many research areas.