METHOD FOR PRODUCTION OF OCTAFLUOROCYCLOPENTENE Russian patent published in 2008 - IPC C07C23/08 C07C17/20 

Abstract RU 2318793 C2

FIELD: organic chemistry.

SUBSTANCE: claimed method includes fluorination of cyclic fluorine- and/or chlorine-containing product of general formula C5FxC8-x, wherein x = 0-8, mixture obtained by chlorofluorination of hexachlorocyclopentadiene with potassium chloride in dimethylformamide as solvent at 130-150°C. Fluorination is carried out in presence of water in amount of 0.9 % or less based on mass of raw materials. Dimethylformamide is filtered from salts and fed in fluorination.

EFFECT: simplified method of increased yield.

1 cl, 3 tbl, 16 ex

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RU 2 318 793 C2

Authors

Ozol Svetlana Ivanovna

Vinogradov Dmitrij Viktorovich

Mikhajlov Il'Ja Nikolaevich

Zajtsev Sergej Aleksandrovich

Barabanov Valerij Georgievich

Dates

2008-03-10Published

2006-03-30Filed