Preparations of carboxylic acid esters containing heptafluoroisopropyl groups was written by Suyama, T.;Kato, S.;Mizutani, Y.. And the article was included in Journal of Fluorine Chemistry in 1992.Reference of 57045-82-6 This article mentions the following:
The reaction of fluoroglyoxylic acid esters and fluoroformic acid esters with perfluoropropene yielded perfluoro(3-methyl-2-oxobutyric) acid esters and perfluoroisobutyric acid esters, resp. Oxamide derivatives and 2,3-quinoxalinediol have been prepared by the reaction of perfluoro(3-methyl-2-oxobutyric) acid esters with amines and o-phenylenediamine, resp. Perfluoro(3-methyl-2-oxobutyric) acid esters give perfluoroisobutyric acid esters on heating in the presence of fluoride ion in an aprotic solvent. In the experiment, the researchers used many compounds, for example, Chloroformicacidn-nonylester (cas: 57045-82-6Reference of 57045-82-6).
Chloroformicacidn-nonylester (cas: 57045-82-6) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Reference of 57045-82-6
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics