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Safranic acid ester perfume compositions
| Details |
Inventors: Wille, Hans J.; Konst, Wilhelmus M. B.; Kos, Jan;
Assignee: Naarden International, N.V. (Naarden, NL)
Primary Examiner: O'Keefe; Veronica
Assistant Examiner:
Attorney, Agent or Firm: Stevens , Davis, Miller & Mosher
Safranic acid esters having the general formula ##STR1## wherein the dotted lines represent two conjugated double bonds in the positions 2 endocyclic and 4 (.alpha.-isomer), 1 and 3 (.beta.-isomer) or 2 exocyclic and 3 (.gamma.-isomer), R.sub.1 represents an alkyl group containing at least 2 carbon atoms, or, in the .gamma.isomers an alkylidene group with 2 or 3 carbon atoms and R.sub.2 represents an alkyl or alkenyl group with 3 or 4 carbon atoms in the form of a perfumed product or flavoring composition. A process for the preparation of a perfumed product or flavoring composition wherein the safranic acid esters are incorporated with other suitable constituents. |
|
DETAILED DESCRIPTION We claim: 1.
A process for the preparation of a perfume composition which comprises the incorporation of one or more esters having the formula ##STR7## wherein the dotted lines represent two conjugated double bonds in the position 2 endocyclic and 4(.
alpha.
-isomer), 1 and 3 (.
beta.
-isomer) or 2-exocyclic and 3(.
gamma.
-isomer) and wherein R.
sub.
1 represents an alkyl group or, in the .
gamma.
-isomers and alkylidene group, with 1-3 carbon atoms and R.
sub.
2 represents an alkyl or alkenyl group with 1-4 carbon atoms as a perfuming agent in a quantity of at least 0.
5 ppm based on the final perfume composition to impart a herbal, spicy or fruity note with other constituents suitable for inclusion in such products.
2.
A perfume composition which comprises one or more esters having the formula ##STR8## wherein the dotted lines represent two conjugated double bonds in the position 2 endocyclic and 4(.
alpha.
-isomer), 1 and 3 (.
beta.
-isomer) or 2-exocylic and 3(.
gamma.
-isomer) and wherein R.
sub.
1 represents an alkyl group or, in the .
gamma.
-isomers an alkylidene group, with 1-3 carbon atoms and R.
sub.
2 represents an alkyl or alkenyl group with 1-4 carbon atoms as a perfuming agent in a quantity of at least 0.
5 ppm based on the final perfume composition to impart a herbal, spicy or fruity note and other constituents suitable for inclusion in such products.
3.
A process for the preparation of a perfume composition which comprises the incorporation of one or more esters having the formula ##STR9## wherein the dotted lines represent two conjugated double bonds in the position 2 endocyclic and 4(.
alpha.
-isomer), 1 and 3 (.
beta.
-isomer) or 2-exocyclic and 3(.
gamma.
-isomer) and wherein R.
sub.
1 represents an alkyl group or, in the .
gamma.
-isomers an alkylidene group, with 1-3 carbon atoms and R.
sub.
2 represents an alkyl or alkenyl group with 1-4 carbon atoms in a quantity of at least 0.
1 ppm and a cycloaliphatic unsaturated ketone in an ester to ketone ratio of 1:20 to 20:1 based on the final perfume composition to impart a herbal, spicy or fruity note with other constituents suitable for inclusion in such products
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