Short synthetic pathway for 1,6:2,3-dianhydro-β-D-mannopyranose
US8461359B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Sep 15, 2009 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Apr 5, 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-β-D-mannopyranose and is characterized in that it includes a step of cyclizing the compound B, where R is an activating agent, in the presence of a base selected from among ammonium hydroxides and mineral bases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.