Process for the preparation of fluoroalkyl perfluorovinyl...

Details Process for the preparation of fluoroalkyl perfluorovinyl... Process for the preparation of fluoroalkyl perfluorovinyl...

C - Chemistry, Metallurgy

07

C

260/646.5

C07C 43/17 (2006.01) C07C 41/18 (2006.01)

Patent

CA 1304415

(Case T 3558) PROCESS FOR THE PREPARATION OF FLUOROALKYL PERFLUOROVINYL ETHERS Abstract of the Disclosure A process for the preparation of fluoroalkyl ethers of the formula: (I) Image wherein: Y is Br or F; X is F, Cl or Br or their mixtures when n is equal to or higher than 2; n is within the range of from 0 to 4; Rf represents a perfluoroalkylene radical containing from 1 to 8 carbon atoms. The process is characterized in that a fluoroalkoxy perfluoroacyl fluoride of the formula: (II) Image is slowly heated with a salifying agent and a solvent, in the presence of a catalytic amount of N,N-dimethylformamide, with an end temperature within the range of from 60° to 150°C being reached.

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