Process for preparing allyl alpha and beta ionones and intermedi

Details Process for preparing allyl alpha and beta ionones and intermedi Process for preparing allyl alpha and beta ionones and intermedi

1982-09-30

1984-11-06

Lone, Werren B.

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

Organic compounds

Oxygen containing

568346, 568347, 568377, 568328, C07C 4921, C07C 49543

Patent

active

044813724

ABSTRACT:
Described is a novel process for preparing allyl alpha and beta ionones defined according to the structure: ##STR1## wherein one of the dashed lines represents a carbon-carbon double bond and the other of the dashed lines represents a carbon-carbon single bond; and wherein the wavy lines represent the cis or trans juxtaposition of the acyl and cyclohexenyl rings about the carbon-carbon double bond which is alpha to the acyl moiety, and intermediates used in said process defined according to the structure: ##STR2## wherein the wavy lines and dashed lines are defined supra and wherein R.sub.1 represents hydrogen or allyl and Z represents methyl or OR.sub.2 and wherein R.sub.2 represents methyl or ethyl.

REFERENCES:
patent: 3030416 (1962-04-01), Mikusch-Buchberg
patent: 3679754 (1972-07-01), Beereboom
patent: 3923896 (1975-12-01), Schulte-Elte
patent: 4157350 (1979-01-01), Wilson et al.
patent: 4157351 (1979-01-01), Mookherjee et al.
patent: 4272412 (1981-06-01), Willis et al.
patent: 4334098 (1982-06-01), Mookherjee
White, "Journal of American Chemical Society", vol. 100, #19, Sep. 19, 1978, pp. 6296-6297.

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