Manufacture of unsaturated ketones

Details Manufacture of unsaturated ketones Manufacture of unsaturated ketones

1973-11-13

1976-01-13

Sutto, Anton H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260586C, 260590R, 260593R, C07D31906

Patent

active

039324621

ABSTRACT:
Manufacture of high molecular weight unsaturated ketones by reacting allyl alcohols with 1-substituted butadiene-1-alkyl ethers or with 1-substituted butadiene-1-alkyl esters or with substances capable of forming said compounds under the conditions of the reaction, in the presence of acid catalysts at elevated temperatures and in the liquid phase. The resulting unsaturated ketones are precursors or intermediates in the manufacture of a variety of natural dyes such as zeaxanthin, rhodoxanthin and xanthophyll or of odorants such as damascones and damascenones.

REFERENCES:
patent: 3655768 (1972-04-01), Pommer et al.

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