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
Title | Year | Author | Number |
---|---|---|---|
METHOD OF SYNTHESIS OF PERHALOGENATED CYCLOPENTENE | 1998 |
|
RU2200729C2 |
METHOD FOR PRODUCTION OF 1,2-DICHLORO-3,3,4,4,5,5-HEXAFLUOROCYCLOPENTENE | 2006 |
|
RU2318792C2 |
PRODUCTION PROCESS OF 2-(FLUOROMETOXY)-1,1,1,3,3,3-HEXAFLUOROOPROPANE (SEVOFLURAN) | 2017 |
|
RU2656210C1 |
METHOD OF PRODUCING PERFLUOROCYCLOALKANES | 2011 |
|
RU2451006C1 |
METHOD OF PRODUCING PERFLUORINATED CYCLONE-CONTAINING TERTIARY AMINES | 2018 |
|
RU2686491C1 |
METHOD FOR OBTAINING OCTAFLUOROTOLUENE | 2022 |
|
RU2801058C1 |
NOVEL METHOD OF PRODUCING 2-FLUOROSULPHONYL TETRAFLUOROETHYL TRIFLUOROVINYL ESTER | 2011 |
|
RU2475477C1 |
FLUORIDATION OF ESTERS OF ACRYLIC ACID AND DERIVATIVES THEREOF | 2018 |
|
RU2697581C1 |
FLUORINATION OF ACRYLATE ESTERS AND DERIVATIVES | 2012 |
|
RU2619108C2 |
FLUORINATION OF ACRYLATE ESTERS AND DERIVATIVES | 2012 |
|
RU2662159C1 |
Authors
Dates
2008-03-10—Published
2006-03-30—Filed