Preparation of saturated ketone morphinan compounds by catalytic isomerization
US8293907B2 · kind B2 · utility
1Cited by
13References
19Claims
0Family size
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Key dates
| Filing date | Apr 9, 2010 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Dec 10, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D489/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides processes for the preparation of saturated ketone morphinan compounds by catalytic isomerization. In particular, the invention provides processes for the conversion of a morphinan comprising an allyl alcohol ring moiety into a morphinan comprising a saturated ketone ring moiety by an isomerization reaction catalyzed by an allyl-transition metal catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.