Process for coupling telomers of chlorotrifluoroethylene

Details Process for coupling telomers of chlorotrifluoroethylene Process for coupling telomers of chlorotrifluoroethylene

C - Chemistry, Metallurgy

07

C

260/656.2

C07C 17/26 (2006.01) C07C 19/08 (2006.01)

Patent

CA 1231727

PROCESS FOR COUPLING TELOMERS OF CHLOROTRIFLUOROETHYLENE ABSTRACT OF THE DISCLOSURE A process for coupling two low molecular weight telomers of chlorotrifluoroethylene comprises reacting the telomers in a solvent with an amount of iron sufficient to form a coupled olefin. The olefin can then be fluorinated using a suitable fluorinating agent, such as chlorine trifluoride, to form a saturated product. Preferably, the solvent for the coupling reaction is acetonitrile, and the reaction is conducted under reflux conditions. A small amount of FeCl2 can optionally be added to the reaction mixture as an initiator for the reaction.

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