2,4-Dioxa-spiro(5,5)undec-8-ene perfume compositions

Details 2,4-Dioxa-spiro(5,5)undec-8-ene perfume compositions 2,4-Dioxa-spiro(5,5)undec-8-ene perfume compositions

1977-02-04

1978-09-12

O'Keefe, Veronica

Compositions

Electrically conductive or emissive compositions

Metal compound containing

2603407, C11B 900

Patent

active

041136640

ABSTRACT:
A perfumery composition consisting essentially of from 1% to 50% by weight of a 2,4-dioxa-spiro(5,5)undec-8-en of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are members selected from the group consisting of hydrogen and methyl, R.sub.4 is a member selected from the group consisting of hydrogen, alkyl having 1 to 4 carbon atoms, methoxy, ethoxy, vinyl and 1-propenyl, R.sub.5 is a member selected from the group consisting of hydrogen and alkyl having 1 to 4 carbon atoms, and R.sub.4 and R.sub.5 taken together are --(CH.sub.2).sub.n -- where n is an integer from 4 to 6, and the remainder, customary constituents of perfumery compositions. Some of the compounds are novel.

REFERENCES:
patent: 3127417 (1964-03-01), Porret et al.
William G. Daubeu et al., Tetrahedron Letters, No. 8, pp. 515-517, 1975, also Chem. Ab. 83:10447d.
Christian S. Rondestvedt, Jr., J. Org. Chem., vol. 26, pp. 2247-2253, 1961.

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