Novel preparation of compounds of the 4-oxodamascone series, and

Details Novel preparation of compounds of the 4-oxodamascone series, and Novel preparation of compounds of the 4-oxodamascone series, and

1985-09-09

1990-04-03

Lone, Werren B.

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

Organic compounds

Carboxylic acid esters

512 23, 568377, 568378, C07C 6900, C07C 49603

Patent

active

049142291

ABSTRACT:
Process for the preparation of the compounds of the formulae Ia and Ib ##STR1## wherein A. 2,4,4-trimethylcyclohex-2-en-1-one oxime of the formula IIb ##STR2## is treated with a strong aqueous acid at from 30.degree. to 80.degree. C., preferably from 40.degree. to 70.degree. C.,

REFERENCES:
patent: 3927107 (1975-12-01), Schulte-Elte et al.
patent: 4311860 (1982-01-01), Krasnobajew
Krasnobajew et al., Chemical Abstracts, 97:212275w, 1982.
Japan Tobacco and Salt Public Corp., Chemical Abstracts, 95:112026f, 1981.
Japan Tobacco and Salt Public Corp., Chemical Abstracts, 95:167155c.

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