1-Phenylpiperidin-2-one is primarily utilized in the field of organic synthesis as a key intermediate for the production of various pharmaceuticals and bioactive compounds. It serves as a building block in the synthesis of complex molecules, particularly in the development of drugs targeting the central nervous system. Its structure is often modified to create derivatives that exhibit potential therapeutic effects, such as anticonvulsant, analgesic, or anti-inflammatory properties. Additionally, it is employed in research to study its interactions with biological systems, aiding in the discovery of new drug candidates.