Process for the dimerization of hexafluoropropene oxide

Details Process for the dimerization of hexafluoropropene oxide Process for the dimerization of hexafluoropropene oxide

C - Chemistry, Metallurgy

07

C

260/539.7

C07C 51/58 (2006.01) C07C 59/135 (2006.01)

Patent

CA 2007684

- 1 - Abstract of the Disclosure: HOE 89/F 009 A process for the dimerization of hexafluoropropene oxide A process for the preparation of the dimer of hexafluoro- propene oxide (HFPO), in which the HFPO is dimerized in an aprotic polar solvent in the presence of a catalyst mixture, is described. The catalyst mixture is composed of a metal salt of the elements of the 1st transition metal series of the periodic table and of a tertiary diamine. By bringing in a molar ratio of metal salt to tertiary diamine in the range from 2:1 to 1:2, in part- icular 1:1, the selectivity for the dimeric compound is greatest, with high yields of the dimer being obtained.

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