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US 7,550,417 B2Granted
Oxygen-containing tri- or tetra-cyclic terpenoid compounds
AssigneeGivandan SA
InventorsJerzy A. Bajgrowicz, Iris Frank
Life of this patent
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Abstract
The use as fragrance ingredient of a compound of formula (I) wherein R1 and Y have the same meaning as given in the description, and fragrance applications comprising them.
Claims8
A fragrance composition comprising a compound of formula (I)
- wherein
- R1 is hydrogen or C1-C3 alkyl;
- Y is a monovalent residue selected from the group consisting of —CR2O and —CHR2OR3,
- wherein R2 is hydrogen or C1-C3 alkyl;
- and
- R3 is hydrogen or C1-C3 alkyl;
- or
- Y is a divalent residue of the formula —CHR2OCHR2— forming together with the carbon atoms C-2, C-5′ and C-4′ a six-membered ring system,
- wherein R2 is hydrogen or methyl;
- and
- the bonds between C-5′ and C-6′, C-4′ and C-5′, and C-2 and C-5′ are single bonds;
- or one of the bonds between C-5′ and C-6′, C-4′ and C-5′, and C-2 and C-5′ together with the dotted line represents a double bond;
- with the proviso that the total number of carbon atoms of the compound of formula (I) is 20 or less.
10 more elements
A fragrance composition comprising a mixture of
- wherein
- R1 is hydrogen or C1-C3 alkyl, e.g. ethyl or isopropyl;
- R2 is hydrogen or C1-C3 alkyl, e.g. ethyl or isopropyl;
- and
- wherein in formula 5 the bond between C-5′ and C-6′ is a single bond and the bond between C-4′ and C-5′ together with the dotted line represents a double bond;
- or the bond between C-4′ and C-5′ is a single bond and the bond between C-5′ and C-6′ together with the dotted line represents a double bond wherein the mixture comprises
- a) about 4 to 90 weight % of a compound of formula 3
- b) about 4 to 90 weight % of a compound of formula 4;
- and
- c) up to about 90 weight % of a compound of formula 5.
7 more elements
A compound of formula (I)
- wherein
- R1 is hydrogen or C1-C3 alkyl;
- Y is a monovalent residue selected from the group consisting of —CR20 and —CHR2OR3,
- wherein R2 is hydrogen or C1-C3 alkyl;
- and
- R3 is hydrogen or C1-C3 alkyl;
- or
- Y is a divalent residue of the formula —CHR2OCHR2— forming together with the carbon atoms C-2, C-5′ and C-4′ a six-membered ring system,
- wherein R2 is hydrogen or methyl;
- and
- the bonds between C-5′ and C-6′, C-4′ and C-5′, and C-2 and C-5′ are single bonds;
- or one of the bonds between C-5′ and C-6′, C-4′ and C-5′, and C-2 and C-5′ together with the dotted line represents a double bond;
- with the proviso that
- I) the total number of carbon atoms of the compound of formula (I) is 20 or less;
- II) if R1 is hydrogen and the bond between C-5′ and C-6′ is a double bond, Y is not —C(CH3)O.
12 more elements
Dependencies are inferred from the claim text.