Method for preparing 1,6:2,3-dianhydro-β-D-mannopyranose
US8742077B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Sep 15, 2009 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Oct 23, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D493/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a method for preparing 1,6:2,3-dianhydro-â-D-mannopyranose and is characterized in that it includes a step of cyclizing the compound C, where R is an alykyl group and R′ is an activating agent, in an alcohol/alcoholate mixture under anhydrous conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.