Iodosobenzene-mediated direct and efficient oxidation of β-dicarbonyls to vicinal tricarbonyls catalyzed by iron(III) salts was written by Cui, Jian;Duan, Ya-Nan;Yu, Jun;Zhang, Chi. And the article was included in Organic Chemistry Frontiers in 2016.Reference of 13669-10-8 This article mentions the following:
Iodosobenzene was found to be effective in the direct oxidation of β-dicarbonyls R1C(O)C(O)R2 [R1 = tert-Bu, 4-fluorophenyl, naphth-2-yl, thiophen-2-yl, etc.; R2 = OEt, OMe, Ot-Bu, OBn, Ph, N(Et)2, morpholino] to vicinal tricarbonyl compounds R1C(O)C(O)C(O)R2 catalyzed by Fe(NO3)·9H2O under mild and environmentally friendly conditions. Also, the present protocol was applied to the one-pot synthesis of heterocyclic compounds such as Et 3-phenylquinoxaline-2-carboxylate and Et 2-hydroxy-5-methyl-3-phenyl-2H-benzo[b][1,4]oxazine-2-carboxylate via vicinal tricarbonyls as the reactive intermediates. As for the reaction pathway, a plausible mechanism involving iodonium ylide, reactive carbene species and an α-hydroxylated intermediate R1C(O)CH(OH)C(O)R2 was proposed. In the experiment, the researchers used many compounds, for example, Ethyl 3-oxo-3-(thiophen-2-yl)propanoate (cas: 13669-10-8Reference of 13669-10-8).
Ethyl 3-oxo-3-(thiophen-2-yl)propanoate (cas: 13669-10-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Reference of 13669-10-8
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics