Process for the preparation of trifluoroethanol

Details Process for the preparation of trifluoroethanol Process for the preparation of trifluoroethanol

1982-08-30

1984-02-28

Mars, Howard T.

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

Organic compounds

Carboxylic acid esters

568842, C07C 6700, C07C 1710, C07C 2909

Patent

active

044342977

ABSTRACT:
A process for the preparation of 2,2,2-trifluoroethanol which comprises reacting 2-chloro-1,1,1-trifluoroethane with an alkali metal salt of a carboxylic acid in a substantially anhydrous aprotic solvent thereby to form the carboxylic acid ester of 2,2,2-trifluoroethanol and an alkali metal chloride, reacting the ester with the hydroxide or a basic salt of the alkali metal in water thereby to form 2,2,2-trifluoroethanol and the alkali metal salt of the carboxylic acid, separating the 2,2,2-trifluoroethanol, and recycling the alkali metal salt of the carboxylic acid for further reaction. Advantageously the alkali metal salt is potassium acetate, the aprotic solvent is N-methyl-2-pyrrolidone and the reaction in the N-methyl-2-pyrrolidone is effected at about 150.degree. to 180.degree. C.

REFERENCES:
patent: 3239557 (1966-03-01), Fasick
patent: 3418360 (1968-12-01), Schulz et al.
patent: 3461156 (1969-08-01), Fierce
patent: 3968177 (1976-07-01), Kayhold
Fieser et al., Reagents for Organic Synthesis, John Wiley & Sons, New York, (1967), pp. 1-10.

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