Spirodienones and spirocyclic ketones

Details Spirodienones and spirocyclic ketones Spirodienones and spirocyclic ketones

1979-11-02

1981-04-14

Reamer, James H.

Compositions

Electrically conductive or emissive compositions

Metal compound containing

568367, C07C 746, A61K 49317

Patent

active

042618665

ABSTRACT:
This invention concerns processes for preparing compounds having the structure ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is the same or different and represents hydrogen or a lower alkyl group and wherein each dashed line represents a carbon-carbon single bond or a carbon-carbon double bond. Those compounds in which all three dashed lines represent carbon-carbon double bonds are prepared by reacting phenols and 2-alkylidene-1,4-disubstituted butanes. Selective reduction of these compounds yields those in which at least one dashed line represents a carbon-carbon single bond. Most of the compounds so prepared are new compounds. All are useful as fragrance materials either directly and/or in compositions and/or have useful fixative properties in fragrance compositions.

REFERENCES:
patent: 3894088 (1975-07-01), Naegeli
Marshall et al., J.A.C.S., vol. 89, #11, pp. 2750-2751, (1967).
Caine et al., Chem. Abst., vol. 81, #37663, (1974).
Bachmann et al., Chem. Abst., vol. 84, #90326x, (1976).
Coxon et al., Chem. Abst., vol. 82, #73206z, (1975).

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