Method for producing 3-methylcycloalkenone compound
US11377411B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 25, 2019 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Sep 25, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method for producing a 3-methylcycloalkenone compound and a method for producing muscone. In the presence of a zirconium oxide catalyst, a diketone represented by the following general formula (1): wherein in formula (1), n represents 8, 9, 10, 11 or 12, is subjected to a vapor-phase intramolecular condensation reaction, whereby a 3-methylcycloalkenone compound can be produced with high reaction efficiency. When a 3-methylcyclopentadecenone compound produced by this method is hydrogenated in a known manner, muscone can be produced efficiently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.