Photolabile pro-fragrances

Patent metadata

Field	Value
Publication number	US-10053412-B2
Application number	US-201615247694-A
Country	US
Kind code	B2
Filing date	Aug 25, 2016
Priority date	Mar 24, 2014
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

The invention relates to specific ketones of formula (I) which act as photolabile pro-fragrances. The invention also relates to detergents or cleaning agents, cosmetic agents and air fresheners including such ketones. The invention further relates to a method for creating a long-lasting fragrance on surfaces and also to a method for creating a long-lasting fragrance in a room using the aforementioned ketones.

First claim

What is claimed is:

1. A compound of the general formula (III)

where
R11 and R14 independently of one another stand for a linear or branched alkyl having 1 to 20 C atoms, and R5 and R6 independently of one another stand for hydrogen, a linear or branched, substituted or unsubstituted alkyl, aryl, alkylaryl, arylalkyl, or alkenyl group, all of which can contain optionally heteroatoms;
R12 and R15 independently of one another stand for hydrogen, a halogen atom, an aryl group, —NO 2 , a linear or branched, substituted or unsubstituted alkoxy group having 1 to 15 C atoms or a linear or branched, substituted or unsubstituted alkenyl group having 1 to 15 C atoms or a linear or branched, substituted or unsubstituted alkyl group having 1 to 15 C atoms or a substituted or unsubstituted aryl group,
R13 and R16 independently of one another stand for a substituted alkyl group having 2 to 20 C atoms, which has at least one C═O group or an ester group.

2. The compound according to claim 1 , wherein the compound is selected from the group consisting of formulas (IV) to (VIII):

3. A detergent or cleaning agent, comprising at least one compound according to claim 1 , wherein the compound is present in amounts of 0.0001 to 5% by weight, based on the total agent.

4. The detergent or cleaning agent of claim 3 , wherein the compound comprises 0.01 to 3% by weight, based in each case on the total agent.

5. The detergent or cleaning agent according to claim 3 , wherein the agent further comprises (1) at least one surfactant, selected from the group comprising anionic, cationic, nonionic, zwitterionic, amphoteric surfactants, or mixtures thereof; and/or
(2) it is present in solid or liquid form.

6. An air freshener, comprising at compound of claim 1 , wherein the cited compound is present in amounts of 0.0001 and 50% by weight based on the total agent.

7. The air freshener of claim 6 , wherein the compound comprises 0.01 to 3% by weight, based on the total weight of the air freshener.

8. A cosmetic agent, comprising at least one compound according to claim 1 , wherein the compound is present in amounts between 0.0001 and 5% by weight based on the total weight of the cosmetic agent.

9. A cosmetic agent according to claim 8 , wherein the compound comprises 0.01 to 3% by weight based on the total weight of the cosmetic agent.

10. A method for the long-lasting scenting of surfaces, comprising applying to a surface to be scented at least one compound according to claim 1 , and exposing the compound to electromagnetic radiation comprising the wavelengths of 200 to 600 nm.

Assignees

• Henkel Ag & Co Kgaa
• Henkel Ag & Co Kgaa

Inventors

• Gerke Thomas
• Kropf Christian
• Huchel Ursula
• Griesbeck Axel
• Landes Agnieszka

Classifications

• A61K8/35

  Ketones, e.g. benzophenone · CPC title

• A61Q13/00

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

• A61K2800/57

  Compounds covalently linked to a(n inert) carrier molecule, e.g. conjugates, pro-fragrances · CPC title

• C11B9/0061

  compounds containing a six-membered aromatic ring not condensed with another ring · CPC title

• C11D3/50

  Perfumes · CPC title