Action of acetic anhydride in the presence of perchloric acid on ethyl 2-cyclopentanoneglyoxalate was written by Traverso, G.;Pirillo, D.. And the article was included in Farmaco, Edizione Scientifica in 1972.Quality Control of Ethyl 2-oxo-2-(2-oxocyclopentyl)acetate This article mentions the following:
The bis(enol acetate) I is obtained by the title reaction, and the cyclopentaneglycoxylate esters II and III are prepared from I. I is hydrogenated, saponified, and esterified to give IV and V. II and III are obtained by the Jones oxidation of IV and V. In the experiment, the researchers used many compounds, for example, Ethyl 2-oxo-2-(2-oxocyclopentyl)acetate (cas: 39163-39-8Quality Control of Ethyl 2-oxo-2-(2-oxocyclopentyl)acetate).
Ethyl 2-oxo-2-(2-oxocyclopentyl)acetate (cas: 39163-39-8) 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. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Quality Control of Ethyl 2-oxo-2-(2-oxocyclopentyl)acetate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics