Process for the preparation of perfluoroalkylalkenols

Details Process for the preparation of perfluoroalkylalkenols Process for the preparation of perfluoroalkylalkenols

1987-07-02

1988-06-28

Mars, Howard T.

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

Organic compounds

Oxygen containing

568677, 568842, 568844, C07C 3342

Patent

active

047540826

ABSTRACT:
In a novel process for the preparation of perfluoroalkylalkenols, perfluoroalkylhalohydrins are dehydrohalogenated using specific ionic bases, namely using an alkali metal carbonate, an alkali metal hydrogen carbonate or an alkylammonium hydrogen carbonate, in the presence of aprotic and polar solvents. Using this process, high yields of the intended perfluoroalkylalkenols are achieved and only very small amounts, if any at all, of undesired byproducts, such as partially fluorinated ether alcohols and/or partially fluorinated epoxides, are formed.

REFERENCES:
patent: 3285975 (1966-11-01), Ahlbrecht
Derwent Abstract of Japanese Published App. No. 52-144610 (=JP No. 76-060449, published Dec. 2, 1977) (Daikin Industries KK).

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