Process for producing 2-(2'-methyl-1'-propenyl)-4-methyltetrahydropyran
US4312717A · kind A · utility
4Cited by
1References
8Claims
0Family size
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Key dates
| Filing date | Jun 12, 1980 |
| Grant date | Jan 26, 1982 |
| Priority date | — |
| Expiry date | Jun 12, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D309/04
- 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 PA1 (1) anodic alkoxylation of citronellol using as a supporting electrolyte an alkali metal aromatic sulfonate, PA1 (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 PA1 (3) cyclization of the resulting dehydrocitronellol in the presence of an acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.