Aliphatic and cyclic perfluoro-alkyl ethers and process for the

Details Aliphatic and cyclic perfluoro-alkyl ethers and process for the Aliphatic and cyclic perfluoro-alkyl ethers and process for the

1974-02-07

1976-06-08

Mars, Howard T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

204 59R, 204 81, 2603459, 2603478, 260615BF, 252 52A, 252 54, 252 73, 252 77, 424283, 424285, 424339, 424341, 424342, C07L 4312

Patent

active

039623483

ABSTRACT:
Mono- or polyhydric alcohols of the alkan-, tetrahydrofuran- or tetrahydropyran series or di- or tri-alkyleneglycols are dissolved in an aprotic polar solvent and reacted with C.sub.3 F.sub.6 in the presence of trialkylamines, or with tetrafluoroethylene to give the corresponding tetrafluoroethyl- or hexafluoropropyl ethers. The solution of the fluoroethers in anhydrous hydrofluoric acid is electrolyzed. Hydrogen-free perfluoroethers are obtained.

REFERENCES:
patent: 2500388 (1950-03-01), Simons
patent: 3435078 (1969-03-01), Nychka et al.

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