Process for producing fluorobenzophenone derivatives

Details Process for producing fluorobenzophenone derivatives Process for producing fluorobenzophenone derivatives

1982-10-08

1984-06-05

Lone, Werren B.

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

Organic compounds

Oxygen containing

568323, C07C 4980

Patent

active

044530099

ABSTRACT:
4-Fluorobenzophenone derivatives of 4,4'-difluorobenzophenone are produced by effecting a halogen-fluorine exchanging reaction between the corresponding 4-halogenobenzophenone derivatives or 4,4'-dihalogenobenzophenone and an alkali fluoride.
The reaction is carried out by heating in an organic solvent. After distilling off the solvent from the reaction product mixture, the end product is isolated by extracting with a solvent. Alternatively the end product is isolated by distillation.

REFERENCES:
patent: 2533132 (1950-12-01), McBee et al.
Pews et al., "J. Amer. Chem. Society", vol. 89, #10 (1967), p. 1162.
Dunlop et al., "J. Amer. Chem. Society", vol. 55, (1933), pp. 1665-1666.
Bradlow et al., "J. Amer. Chem. Society", vol. 69, (1947), pp. 662-663.
Colorado et al., "Chem. Abstracts", vol. 42 (1948), p. 1920i.
Eckstein et al., "Chem. Abstracts", vol. 54 (1960), p. 21005b.
Picard et al., "Chem. Abstracts", vol. 44 (1950), p. 4442.

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