Process for preparing bromodifluoroacetylfluoride

Details Process for preparing bromodifluoroacetylfluoride Process for preparing bromodifluoroacetylfluoride

1990-06-27

1991-06-18

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic halides

C07C 5158

Patent

active

050251058

ABSTRACT:
A process for preparing bromodifluoroacetylfluoride characterized in that a gaseous stream of oxygen-diluted ozone is reacted, at temperatures ranging from -100.degree. C. to +80.degree. C., with 1,4-dibromohexafluorobutene-2 optionally dissolved in a solvent which is inert under the reaction conditions, with consequent obtainment of the corresponding ozonide and, subsequently, the ozonide is subjected to a heat treatment at temperatures ranging from 100.degree. to 300.degree. C., with consequent obtainment of bromodifluoroacetylfluoride.

REFERENCES:
Schaers, Carl et al., Inorg. Chem. 12(4) 897-900 1973.
Vogl, O. et al. ACS Symp. Ser. 59(Ring Opening Polym. 111-26, 1977.
Campbell, R. et al., Macro Mol. Chem. 180(3) 633-45, 1979.
Samejima, S. et al., Asahi Garash Kenkyo Hakoko 35(2) 165-73 1985.
Fukin, A. V., Tzv Akad. Nank SSSR Ser. Khim (7) 1572-6, 1984.
Chemical Abstracts, vol. 92, 41361 m, 1989.
Derwent Abstract of Japanese Patent Application 51/059818.

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