Electric Literature of C9H16O2. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 2,6-Dimethyl-3,5-heptanedione, is researched, Molecular C9H16O2, CAS is 18362-64-6, about Acid-catalyzed acylation reaction via C-C bond cleavage: a facile and mechanistically defined approach to synthesize 3-acylindoles.
A facile acid-catalyzed acylation of indoles with 1,3-dione as an ecofriendly acylating agent (green chem. method) was developed. This protocol combines a carbon carbon bond (C-C-bond) cleavage and heterocyclic carbon hydrogen bond (C-H bond) functionalization to form new C-C bonds. Based on the detailed mechanistic studies, a credible mechanistic pathway was proposed. Under optimized conditions the synthesis of the target compounds was achieved by a reaction of 1H-indole derivatives with 3-methyl-2,4-pentanedione, 2,4-pentanedione, 3,5-heptanedione, 1,1,1,5,5,5-hexafluoro-2,4-pentanedione, 1,3-diphenyl-1,3-propanedione, 1-phenyl-1,3-butanedione, 3-oxobutanoic acid ester, 2-(acetyl)cyclohexanone using trifluoromethanesulfonic acid as a catalyst. The title compounds thus formed included 1-(1-methyl-1H-indol-3-yl)ethanone derivs, 1-(1-methyl-1H-indol-3-yl)-1-propanone, 2,2,2-trifluoro-1-(1-methyl-1H-indol-3-yl)ethanone.
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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica