Production of (-)dodecahydro-3a,6,6,9a-tetramethyl-naphtho[2,1-b] furan
US5473085A · kind A · utility
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Key dates
| Filing date | Sep 28, 1994 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Sep 28, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/92
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Preparation of a methyl ketone intermediate useful in the synthesis of (-)-dodecahydro-3a,6,6, 9a-tetramethyl-naphtho(2,1-b) furan by subjecting (-)-sclareol to ozonolysis in the presence of iodine or iodine-containing compound. The intermediate can be converted to (-)-dodecahydro-3a,6,6,9a-tetramethyl-naphtho(2,1-b) furan by Baeyer-Villiger oxidation followed by reduction of the resulting product in the presence of a Lewis acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.