Chemical process

Details Chemical process Chemical process

C - Chemistry, Metallurgy

07

C

C07C 17/20 (2006.01) C07C 17/10 (2006.01) C07C 19/08 (2006.01)

Patent

CA 2062442

QM 36244 ABSTRACT CHEMICAL PROCESS A process for the preparation of an alkane containing fluorine by contacting a halogenated alkane containing at least one hydrogen atom and at least one halogen atom selected from chlorine, bromine and iodine with a transition metal fluoride selected from osmium hexafluoride, iridium hexafluoride, rhenium hexafluoride, ruthenium pentafluoride, chromium pentafluoride, vanadium pentafluoride, rhenium heptafluoride and uranium hexafluoride, whereby to replace at least one hydrogen atom or at least one chlorine, bromine or iodine atom in said halogenated alkane starting material by a fluorine atom. Use of certain of the defined transition metal fluorides, e.g. OsF6, IrF6 and ReF6 allows the selective replacement of halogen by fluorine, whilst others, e.g. UF6, VF5 and ReF7 allow selective replacement of hydrogen by fluorine.

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