Anhydrosugar synthesis
US10364265B1 · kind B1 · utility
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Key dates
| Filing date | Dec 15, 2016 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Dec 15, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H1/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Improved methods of making anhydrosugars by pyrolysis of a substrate sugar to remove at least one water molecule thereby producing a desired anhydrosugar and side products, the improvement being either 1) protecting one hydroxyl group of the substrate sugar before pyrolysis; or (2) pretreating the substrate sugar with a metal salt and optional acid before pyrolysis, wherein lower amounts of said side products are produced by said improved method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.