Process for the manufacture of aromatic 1,3-diketones

Details Process for the manufacture of aromatic 1,3-diketones Process for the manufacture of aromatic 1,3-diketones

1975-07-30

1978-04-04

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260590FA, 260590FB, 260590D, 260590E, 2603478, 2603407, 2603323R, 260479R, 560139, 560138, 560142, 560145, 560144, C07C 4976

Patent

active

040828077

ABSTRACT:
Aromatic 1,3-diketones are produced by reacting aromatic compounds with acetoacetyl fluoride optionally substituted in the .gamma.-position by fluorine, chlorine and/or bromine, in hydrofluoric acid of at least 90% strength at a temperature of from about -40.degree. to +50.degree. C. The products obtained are important starting products and intermediates for the manufacture of dyestuffs, plastics and pharmaceuticals. Furthermore they can be used for the formation of metal complexes and as metal extracting agents, solution intermediaries and solvents.

REFERENCES:
patent: 2214117 (1940-09-01), Boese
patent: 2307891 (1943-01-01), Lieber
Olah, et al., J. Org. Chem., vol. 26, pp. 225-227, (1961).
Olah, (II), Freedel-Crafts & Related Reactions, vol. 1, pp. 317-321, (1963).
Simons, et al., J.A.C.S., vol. 61, pp. 1795-1796, (1939).

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