Process for the preparation of aromatic beta-diketones

Details Process for the preparation of aromatic beta-diketones Process for the preparation of aromatic beta-diketones

1989-11-02

1991-05-14

Reamer, James H.

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

Organic compounds

Oxygen containing

568 42, 568306, 549446, C07C 4545

Patent

active

050157779

ABSTRACT:
A process for the preparation of aromatic beta-diketones by the reaction of an acetophenone and a molar excess of an alphatic ester or an ester of benzoic acid in the presence of sodium alkoxide condensation agent in an aromatic hydrocarbon solvent. Also disclosed is a method of recycling the solvent and excess ester reactant after separation of the aromatic beta-diketone product.

REFERENCES:
patent: 3362935 (1968-01-01), Norton
patent: 3742062 (1973-06-01), Chappelon et al.
patent: 4065502 (1977-12-01), MacKay
patent: 4256657 (1981-03-01), Wheeler
patent: 4482745 (1984-11-01), Mauding
patent: 4562067 (1985-12-01), Hopp et al.
Swamer et al., J.A.C.S., vol. 72, pp. 1352-1356 (1950).

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