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 Palladium-Catalyzed Intramolecular Oxidative Alkylation of Unactivated Olefins, published in 2003-01-22, which mentions a compound: 18362-64-6, Name is 2,6-Dimethyl-3,5-heptanedione, Molecular C9H16O2, Recommanded Product: 2,6-Dimethyl-3,5-heptanedione.
Reaction of 5,5-dimethyl-8-nonene-2,4-dione catalyzed by PdCl2(CH3CN)2 (5 mol %) in the presence of CuCl2 (2.5 equiv) at room temperature for 3 h formed 2-acetyl-3,6,6-trimethyl-2-cyclohexenone in 96% isolated yield. Palladium-catalyzed intramol. oxidative alkylation tolerated a range of substitution and was applicable to the synthesis of spirobicyclic compounds, e.g., I, and to the cyclization of ζ-alkenyl β-keto esters.
Although many compounds look similar to this compound(18362-64-6)Recommanded Product: 2,6-Dimethyl-3,5-heptanedione, numerous studies have shown that this compound(SMILES:CC(C)C(CC(C(C)C)=O)=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica