Alpha, alpha-disubstituted carboxylic acid esters for use as aroma chemicals

A technology for uses and compounds, applied in the field of α,α-disubstituted carboxylic acid esters used as aroma chemicals, which can solve the problems of difficulty and labor, not knowing whether the substance of taste is actually found, and research difficulties.

Pending Publication Date: 2021-03-09
BASF AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since even small changes in chemical structure lead to significant changes in sensory properties such as odor and taste, research on targets with specific sensory properties such as specific odors is extremely difficult.
Therefore, research for new fragrances and flavorings is in most cases difficult and laborious, and it is not even known whether a substance with the desired smell and / or taste has actually been found

Method used

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  • Alpha, alpha-disubstituted carboxylic acid esters for use as aroma chemicals
  • Alpha, alpha-disubstituted carboxylic acid esters for use as aroma chemicals
  • Alpha, alpha-disubstituted carboxylic acid esters for use as aroma chemicals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0487] 1. Preparation Example

[0488] abbreviation:

[0489] GC: gas chromatography

[0490] RT: retention time

[0491] Mixture A: a mixture of at least 5 isomers of the general formula (I.6), wherein:

[0492] R 1 from C 1 -C 3 alkyl, and

[0493] R 2 selected from branched C 3 -C 5 alkyl,

[0494] where R 1 and R 2 The total number of carbon atoms in is 6,

[0495] The mixture contains the following amounts of compounds (I.1a) to (I.5a):

[0496]

[0497] I.1a: 11-16% by weight,

[0498] I.2a+I.3a+I.4a: 65-70% by weight,

[0499] I.5a: 11-16% by weight,

[0500] Based on the total weight of the mixture.

[0501] This mixture is commercially available from the company Hexion under the trade name VeoVa9, which has the CAS number 54423-67-5.

[0502] Mixture F: a mixture of at least 10 isomers of the general formula (I.6), wherein:

[0503] R 1 from C 1 -C 4 alkyl, and

[0504] R 2 selected from branched C 3 -C 6 alkyl,

[0505] where R 1 and R...

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Abstract

The present invention relates to the use of an alpha,alpha-disubstituted carboxylic acid ester of the general formula (I) wherein the variables are as defined in the claims and the description, or ofmixtures of two or more of these alpha,alpha-disubstituted carboxylic acid esters or of a stereoisomer thereof or of a mixture of two or more stereoisomers thereof as aroma chemicals;to the use thereof for modifying the scent character of a fragranced composition;to an aroma chemical composition containing an alpha,alpha-disubstituted carboxylic acid ester of the general formula (I) or a mixture of two or more of said alpha,alpha-disubstituted carboxylic acid esters or of a stereoisomer thereof or of a mixture of two or more stereoisomers thereof; and to a method of preparing a fragranced composition or for modifying the scent character of a fragranced composition. The invention further relates to specific mixtures of alpha,alpha-disubstituted carboxylic acid esters of the general formula(I).

Description

[0001] The present invention relates to α,α-disubstituted carboxylic acid esters, or mixtures of two or more α,α-disubstituted carboxylic acid esters, or stereoisomers thereof, or two or more stereoisomers thereof The use of mixtures of body as fragrance chemicals; to the use thereof for improving the odor profile of fragrance compositions; to fragrance chemical compositions comprising α,α-disubstituted carboxylic acid esters, or two or more A mixture of said α,α-disubstituted carboxylic acid ester, or a stereoisomer thereof, or a mixture of two or more stereoisomers thereof; and a method for preparing said fragrance composition or for use in Method for improving the odor profile of a fragrance composition. [0002] The invention also relates to specific α,α-disubstituted carboxylic acid esters. Background technique [0003] Fragrance chemicals, especially fragrances, are of particular interest especially in the field of cosmetics and cleaning and laundry compositions. Fragr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/24A61K8/37A61Q13/00
CPCC07C69/24A61K8/37A61Q13/00
Inventor M·丹兹R·派尔泽M·布鲁罗伊格F·加尔利希斯
Owner BASF AG
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