Production of cyclohexene fluorocarbons

摘要: The invention comprises a process for the production of perfluorocyclohexene or perfluoromethylcyclohexene having one more trifluoromethyl substituents, by pyrolysing perfluorocyclohexylcarboxylic acid perfluoromethyl cyclohexyl carboxylic at least group and beta-fluorine atom about 550 DEG C. isolating fluorocarbon produced. Elimination HF as well decarboxylation takes place according to following equation in case perfluorocyclohexyl itself: An example is given which above heated carbon-lined steel tube give c-C6F10. Other acids may be used include those two CF3 groups 2 : 6-triperfluoromethyl (perfluoronaphthenic acids), obtainable Specification 686,678.