In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called A β-Keto Ester as a Novel, Efficient, and Versatile Ligand for Copper(I)-Catalyzed C-N, C-O, and C-S Coupling Reactions, published in 2007-05-11, which mentions a compound: 7661-33-8, Name is 1-(4-Chlorophenyl)pyrrolidin-2-one, Molecular C10H10ClNO, Formula: C10H10ClNO.
Employing Et 2-oxocyclohexanecarboxylate as a novel, efficient, and versatile ligand, the copper-catalyzed coupling reactions of various N/O/S nucleophilic reagents with aryl halides could be successfully carried out under mild conditions. A variety of products including N-arylamides, N-arylimidazoles, aryl ethers, and aryl thioethers were synthesized in good to excellent yields.
In addition to the literature in the link below, there is a lot of literature about this compound(1-(4-Chlorophenyl)pyrrolidin-2-one)Formula: C10H10ClNO, illustrating the importance and wide applicability of this compound(7661-33-8).
Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts