Preparation of angelic acid or esters thereof
US4613680A · kind A · utility
4Cited by
0References
11Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 24, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Feb 24, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11B9/0076
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Angelic acid or esters thereof which are useful as perfume materials are prepared by isomerizing tiglic acid or an ester thereof with an organic sulfinic acid as the catalyst, and novel esters of angelic acid represented by the formula ##STR1## wherein R represents 3-hexenyl, 3-methyl-2-butenyl, 3-methyl-3-butenyl, 3-methyl-2-pentenyl, 3-methyl-4-pentenyl, CH.sub.3 (CH.sub.2).sub.l - (in which l is an integer from 5 to 9), cyclopentyl, cyclohexyl, 2-methylpentyl, .alpha.-methylbenzyl, neryl or furfuryl are provided as part of said esters of angelic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.