Fragrance composition

Patent metadata

Field	Value
Publication number	US-9643908-B2
Application number	US-201414914026-A
Country	US
Kind code	B2
Filing date	Sep 8, 2014
Priority date	Sep 6, 2013
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

The present invention provides a compound represented by the following general formula (A)

wherein 1′-position is optically active; and one of R1 and R2 represents a methyl group and the other represents an ethyl group, or both R1 and R2 represent a methyl group.

First claim

The invention claimed is:

1. A compound of the following formula (A):

wherein 1′-position is optically active; and one of R 1 and R 2 is a methyl group and the other represents an ethyl group, or both R 1 and R 2 are a methyl group;
wherein the optical purity regarding a configuration at 1′-position is in a range from 20% e.e. to 99% e.e; and
wherein an R-isomer is in excess regarding the optical activity at 1′-position in the formula (A).

2. The compound according to claim 1 , wherein
R 1 and R 2 are methyl groups.

3. A fragrance composition, comprising the compound of formula (A) according to claim 2 .

4. A method for augmenting or modifying an odor of a fragrance composition, the method comprising adding the compound according to claim 2 .

5. The compound according to claim 1 , wherein
one of R 1 and R 2 is a methyl group, and the other is an ethyl group.

6. A fragrance composition, comprising the compound of formula (A) according to claim 5 .

7. A method for augmenting or modifying an odor of a fragrance composition, the method comprising adding the compound according to claim 5 .

8. An optically active (1′R)-3-methyl-5-(2,2,3-trimethylcyclopentan-1-yl)-2-pentanone,
wherein the optical purity regarding a configuration at 1′-position is in a range from 60% e.e. to 99% e.e.

9. A fragrance composition, comprising the compound of formula (A) according to claim 8 .

10. A method for augmenting or modifying an odor of a fragrance composition, the method comprising adding the compound according to claim 8 .

11. (1′R)-3-Methyl-5-(2,2,3-trimethylcyclopentan-1-yl)-2-pentanone.

12. A fragrance composition, comprising the compound of formula (A) according to claim 1 .

13. A product scented with the fragrance composition according to claim 12 .

14. The scented product according to claim 13 , which is one selected from fragrance products, cosmetics, basic skin care cosmetics, make-up cosmetics, hair cosmetics, sunscreen cosmetics, medicated cosmetics, hair-care products, soaps, body cleaning agents, bath agents, laundry detergents, finishing softeners for clothes, cleaning agents, kitchen detergents, bleaching agents, aerosols, air fresheners, repellents, and groceries.

15. The fragrance composition according to claim 12 , wherein
the content of the compound of formula (A) is 0.01 to 60% by weight.

16. The fragrance composition according to claim 12 , wherein
the chemical purity of the compound is 80% or higher.

17. A method for augmenting or modifying an odor of a fragrance composition, the method comprising adding the compound according to claim 1 .

Assignees

• Takasago Perfumery Co Ltd

Inventors

• Hojo Kazuma

Classifications

• A61Q13/00

  Formulations or additives for perfume preparations (essential oils or perfumes per se C11B9/00) · CPC title

• A61Q19/10

  Washing or bathing preparations · CPC title

• C07C49/11 Primary

  monocyclic · CPC title

• C11B9/003

  the ring containing less than six carbon atoms · CPC title

• C11D3/2072

  Aldehydes-ketones · CPC title