Production of high molecular weight unsaturated ketones

Details Production of high molecular weight unsaturated ketones Production of high molecular weight unsaturated ketones

1973-03-28

1976-05-04

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260338, 2603409, 260468R, 260486R, 260488R, 260488H, 260586C, 260590C, 260593R, 260594, C07C 4100, C07C 4500

Patent

active

039548040

ABSTRACT:
A process for the production of high molecular weight unsaturated ketones by alkylation of low molecular weight .alpha.,.beta.-unsaturated ketones with an allyl alcohol at elevated temperature in the presence of an acid catalyst. The products are intermediates for the production of various natural substances and perfumes such as the damascenones, damascones or natural dyes such as zeaxanthin, rhodoxanthin or xanthophyll.

REFERENCES:
patent: 2064254 (1936-12-01), Fuchs
patent: 2697730 (1954-12-01), Mecorney et al.
patent: 3047630 (1962-07-01), Addy
patent: 3479403 (1969-11-01), MacLean
patent: 3781307 (1973-12-01), Chabardes et al.
Pines et al., "J. Am. Chem. Soc.", Vol. 82, pp. 2471-2494, (1960).
Ipatieff et al., "J. Org. Chem.", Vol. 7, pp. 189-198, (1942).

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