Method for producing 5-hydroxymethylfurfural in the presence of a Lewis acid catalyst and/or a heterogeneous base catalyst and a homogeneous organic Brønsted acid catalyst in the presence of at least one aprotic polar solvent
US10526302B2 · kind B2 · utility
1Cited by
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20Claims
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Key dates
| Filing date | Oct 17, 2016 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Oct 17, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for the production of 5-hydroxymethylfurfural from a feedstock comprising at least one sugar using a combination of at least one catalyst selected from the homogeneous Lewis acids, the heterogeneous Lewis acids and the heterogeneous bases and at least one homogeneous Brønsted acid catalyst selected from the families of the thioureas, the sulphonic acids and the phosphorus-containing organic compounds, alone or in a mixture, in the presence of at least one aprotic polar solvent, at a temperature comprised between 30° C. and 300° C., and at a pressure comprised between 0.1 MPa and 10 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.