Geranonitrile substitute
A fragrance preparation containing 3,7-dimethyloct-6-enenitrile and other compounds described herein is a geranonitrile substitute which has the advantages inherent to geranonitrile, such as fragrance freshness and composition stability but is less objectionable from a toxicological standpoint.
1. A fragrance preparation consisting of 3,7-dimethyloct-6-enenitrile and at least one component selected from the group consisting of:
a) undecanal isomer mixture,
b) 2-butyl-4,6-dimethyldihydropyran,
c) 2-benzyl-2-methyl-3-butenenitrile,
d) 2,4-dimethyl-4-phenyltetrahydrofuran,
e) ethylmethoxynorbornane isomer mixture,
f) cis-, trans-3-methyl-5-phenyl-2-pentenenitrile, and/or
g) 9-decen-1-ol,
wherein the fragrance preparation is an equivalent replacement for geranonitrile with respect to odor profile, yet does not have the toxicological effect of geranonitrile.
2. The fragrance preparation of claim 1 , wherein
i) the weight ratio of 3,7-dimethyloct-6-enenitrile to undecanal isomer mixture is from 300:1 to 1:5, and/or
ii) the weight ratio of 3,7-dimethyloct-6-enenitrile to 2-butyl-4,6-dimethyldihydropyran is from 200:1 to 1:9, and/or
iii) the weight ratio of 3,7-dimethyloct-6-enenitrile to 2-benzyl-2-methyl-3-butenenitrile is from 200:1 to 1:13, and/or
iv) the weight ratio of 3,7-dimethyloct-6-enenitrile to 2,4-dimethyl-4-phenyltetrahydrofuran is from 300:1 to 1:13, and/or
v) the weight ratio of 3,7-dimethyloct-6-enenitrile to ethyl methoxynorbornane isomer mixture is from 400:1 to 1:2, and/or
vi) the weight ratio of 3,7-dimethyloct-6-enenitrile to cis-, trans-3-methyl-5-phenyl-2-pentenenitrile is from 200:1 to 1:5, and/or
vii) the weight ratio of 3,7-dimethyloct-6-enenitrile to 9-decen-1-ol is from 400:1 to 1:5.
3. A composition comprising the fragrance preparation of claim 1 .
4. A composition comprising the fragrance preparation of claim 2 .
5. The composition of claim 3 , wherein the weight fraction of the fragrance preparation is between ≧10 −6 % by weight and ≦50% by weight based on the total weight of the composition.
6. The composition of claim 3 further comprising at least one additional fragrance.
7. The composition of claim 3 , wherein the composition comprises a supported fragrance.
8. The composition of claim 3 , wherein the composition comprises at least one active laundering, care and/or cleaning component.
9. A method of producing a citrus odor in a composition comprising adding to said composition a citrus odor-producing effective amount of a fragrance preparation of claim 1 .
10. The composition of claim 5 , wherein the weight fraction of the fragrance preparation is between ≧0.03% by weight and ≦5% by weight, based on the total weight of the composition.