Process for preparing perfluoro-alkoxypropionic acid fluorides

Details Process for preparing perfluoro-alkoxypropionic acid fluorides Process for preparing perfluoro-alkoxypropionic acid fluorides

C - Chemistry, Metallurgy

07

C

260/354.1, 260/5

C07C 53/122 (2006.01) C07C 51/58 (2006.01) C07C 51/62 (2006.01) C07D 319/12 (2006.01)

Patent

CA 1062268

Abstract of the disclosure: Perfluoro carbonyl compounds react with hexafluoro propene epoxide in the presence of dimethylamino-difluoro-phosphorane producing perfluorinated carboxylic acid fluorides with ether linkages. Among the carbonyl compounds which can be used are perfluorinated ketones, acid fluorides of the formula RF - COF and RF - OCF(CF3) - COF (RF being a perfluoro-alkyl radical having from 1 to 4 carbon atoms) and perfluoro-2-oxo-3,6-dimethyl-1,4-dioxsne.

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