Production of cyclopentadiene from furfural
US11377397B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Oct 22, 2020 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Feb 26, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/068
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The application relates to processes and systems that use a furfural compound for producing five-membered carbocyclic rings that are unsaturated, such as cyclopentene and cyclopentadiene. Examples methods for conversion of furfural compounds may include converting a furfural compound to at least a five-membered, saturated carbocyclic ring, and converting the five-membered, saturated carbocyclic ring in a presence of a catalyst to at least a five-membered, unsaturated carbocyclic ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.