Fragrance compositions from tertiary terpene alcohols
US7560598B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Apr 7, 2006 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Dec 26, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cyclic ethers or chloroketones useful as fragrance components or intermediates are made by reacting a saturated, tertiary terpene alcohol with hypochloric acid under conditions effective to promote oxidation. trans-Pinanol gives predominantly 6,9-dimethyl-7-oxatricyclo[4.3.0.03,9]-nonane, while cis-pinanol yields almost exclusively 1-acetyl-3-(2-chloroethyl)-2,2-dimethylcyclobutane, a new and versatile intermediate for making cyclobutane derivatives having interesting and diverse aromas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.