3-Chlorocyclohexene is primarily used as an intermediate in organic synthesis. It plays a significant role in the production of various pharmaceuticals and agrochemicals due to its reactive chlorine atom and cyclohexene structure. The compound is often utilized in cyclization reactions, where it helps form complex cyclic structures essential in drug development. Additionally, it serves as a building block in the synthesis of specialty chemicals, including polymers and resins, where its reactivity allows for the creation of tailored materials with specific properties. In research, it is employed in studies involving electrophilic addition reactions, providing insights into reaction mechanisms and pathways. Its versatility makes it valuable in both industrial and academic settings.