Process for the production of 5-hydroxymethylfurfural in the presence of organic catalysts from the thiourea family
US10239852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2016 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Jul 19, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the transformation of a feed of at least one sugar into 5-hydroxymethylfurfural, contacting the feed with one or more organic catalysts in the presence of at least one solvent, said solvent being water or an organic solvent, alone or as a mixture, at a temperature in the range 30° C. to 200° C., and at a pressure in the range 0.1 MPa to 10 MPa, in which said organic catalysts are selected from compounds from the thiourea family with general formula R1NH—C(═S)—NHR2, in which the groups R1 and R2 are aromatic groups optionally having a heteroatom, linear or branched alkyl groups, which may or may not be cyclic, and alkyl groups with at least one heteroatom, which may be linear or branched, which may or may not be cyclic, said groups R1 and R2 possibly being substituted or unsubstituted and which may be identical or different.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.