Process for producing 2-(2'-methyl-1'-propenyl)-4-methyltetrahydropyran
US4340544A · kind A · utility
5Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1981 |
| Grant date | Jul 20, 1982 |
| Priority date | — |
| Expiry date | Jul 31, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C43/178
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Rose oxide, which is an important olfactive compound valuable in the art of perfumery, is advantageously produced from citronellol through a novel synthetic route comprising PA0 (1) anodic alkoxylation of citronellol using as a supporting electrolyte an alkali metal aromatic sulfonate, PA0 (2) dealkoxylation of the resulting 2,6-dimethyl-3-alkoxyoct-1-en-8-ol in the presence of a palladium or nickel complex, and then PA0 (3) cyclization of the resulting dehydrocitronellol in the presence of an acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.