Production of compounds comprising the group cf3

Details Production of compounds comprising the group cf3 Production of compounds comprising the group cf3

C - Chemistry, Metallurgy

07

C

C07C 17/358 (2006.01) C07C 17/395 (2006.01) C07C 19/12 (2006.01)

Patent

CA 2462410

It has been discovered that highly fluorinated antimony, especially as a hydrogen fluoride addition compound, can be used as an isomerisation catalyst for the isomerisation of certain halogen(hydro)carbon compounds. For example, 1,1,1-trifluoro-2,2-dichloroethane can be produced from 1,1,2-trifluoro-1,2- dichloroethane. The method is also suitable for the purification of certain (hydro)carbon compounds which are contaminated by isomerisable compounds.

Il a été découvert que de l'antimoine fortement fluoré, notamment en tant que produit d'addition d'acide fluorhydrique, peut s'utiliser comme catalyseur d'isomérisation pour isomériser des composés hydrocarbures halogénés déterminés. Du 1,1,1-trifluoro-2,2-dichloréthane peut par exemple être produit à partir de 1,1,2-trifluoro-1,2-dichloréthane. Le procédé selon l'invention s'utilise également pour purifier des composés hydrocarbures déterminés contaminés par des composés isomérisables.

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