Process for the preparation of alkyl fluorobenzoates in high pur

Details Process for the preparation of alkyl fluorobenzoates in high pur Process for the preparation of alkyl fluorobenzoates in high pur

1994-11-15

1995-08-29

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

C07C 6976

Patent

active

054461901

ABSTRACT:
Process for the preparation of alcohol fluorobenzoates of the formula (I) ##STR1## in which R is an alkyl radical and F.sub.n is 1 to 4 fluorine atoms which, independently of one another, are bonded to the aromatic ring, by reacting a fluorobenzyl chloride of the formula (II) ##STR2## in which F.sub.n is as defined above, with an at least stoichiometric amount of an alkali metal alcoholate ROM in which R is as defined above and M is an alkali metal from the group consisting of Li, Na and K, in the corresponding alcohol ROH at temperatures from -10.degree. C. to 150.degree. C., the solvent is distilled off, if appropriate, and the alkali metal chloride formed is separated off by treating the mixture with water or by filtration.

REFERENCES:
patent: 3223725 (1965-12-01), Hill
patent: 3317569 (1967-05-01), Larsen et al.
patent: 3579577 (1971-05-01), Hoch
patent: 3703546 (1972-11-01), Leaper et al.
patent: 4985588 (1991-01-01), Kumai et al.
patent: 5292928 (1994-03-01), Miltenberger

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