Back to results
US 5,175,143 AGranted
Perfumery materials
AssigneeUnilever Patent Holdings B.V.
InventorsChristopher P. Newman, Karen J. Rossiter, Charles S. Sell
Life of this patent
Estimating the term…
Abstract
Novel perfumery chemicals having a cyclic acetal structure and providing a variety of perfume notes, especially amber, are described. They are prepared by reacting specified diols and aldehydes/ketones.
Claims3
A perfume composition containing, as an essential odiferous component, an effective amount of at least one compound selected from the group consisting of 2-(3,5-dimethyl-3-cyclohexen-1-yl)-5-methyl-5-tert.butyl-1,3-dioxane;
- 2-(2,4-dimethyl-3-cyclohexen-1-yl)-5-methyl-5-tert.butyl-1,3-dioxane;
- 2-(3,5-dimethyl-3-cyclohexen-1-yl)-5-methyl-5-isopropyl-1,3-dioxane;
- 2-(2,4-dimethyl-3-cyclohexen-1-yl)-5-methyl-5-isopropyl-1,3-dioxane;
- 2-(3,5-dimethyl-3-cyclohexen-1-yl)-5-methyl-5-(1-methylpropyl)-1,3-dioxane ;
- 2-(2,4-dimethyl-3-cyclohexen-1-yl)-5-methyl-5-(1-methylpropyl)-1,3-dioxan e;
- 2-(3,5-dimethyl-3-cyclohexen-1-yl)-5-methyl-5-propyl-1,3-dioxane;
- 2-(2,4-dimethyl-3-cyclohexen-1-yl)5-methyl-5-propyl-1,3-dioxane;
- 2-(2,4-dimethylcyclohexyl)-5-methyl-5-(1-methylpropyl)-1,3-dioxane;
- and 2-(3,5-dimethylcyclohexyl)-5-methyl-5-(1-methylpropyl)-1,3-dioxane.
6 more elements
Dependencies are inferred from the claim text.