Method of synthesizing fluoromethylhexafluoroisopropyl ether

Details Method of synthesizing fluoromethylhexafluoroisopropyl ether Method of synthesizing fluoromethylhexafluoroisopropyl ether

1979-12-26

1981-02-10

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568682, C07C 4101, C07C 4142

Patent

active

042503345

ABSTRACT:
A method of synthesizing fluoromethylhexafluoroisopropyl ether comprises adding hexafluoroisopropyl alcohol to a mixture comprising a stoichiometric excess of paraformaldehyde and hydrogen fluoride, plus sufficient sulfuric acid to sequester most of the water produced by the reaction. The mixture is maintained at a temperature of at least 57.degree. C., to cause vapor formation by boiling of the fluoromethylhexafluoroisopropyl ether formed. The vapor is then collected and condensed, and may be purified by distillation.

REFERENCES:
patent: 2992276 (1961-07-01), Weynmayr
patent: 3683092 (1972-08-01), Regan et al.
patent: 3689571 (1972-09-01), Regan et al.

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