Computed Properties of C9H16O2. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 2,6-Dimethyl-3,5-heptanedione, is researched, Molecular C9H16O2, CAS is 18362-64-6, about Convenient Synthesis of Benzothiazoles and Benzimidazoles through Bronsted Acid Catalyzed Cyclization of 2-Amino Thiophenols/Anilines with β-Diketones. Author is Mayo, Muhammad Shareef; Yu, Xiaoqiang; Zhou, Xiaoyu; Feng, Xiujuan; Yamamoto, Yoshinori; Bao, Ming.
In the presence of p-toluenesulfonic acid, diketones RCOCH2COR1 (R = R1 = Me, Et, i-Pr, Ph; R = Me; R1 = Ph) underwent cyclocondensation reactions with 2-aminobenzenethiols 4-R2-2-H2NC6H3SH (R2 = H, Cl) or 1,2-benzenediamines 4-R2-1,2-C6H3(NH2)2 (R2 = H, Cl, Me, MeO, O2N) to give benzothiazoles and benzimidazoles I (R = R1 = Me, Et, i-Pr, Ph; R2 = H, Cl, Me, MeO, O2N; X = S, NH) under either solvent-free conditions at ambient temperature or in acetonitrile at 80° without an oxidant, metal catalyst, or microwave irradiation in 51-95% yields.
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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica