Ester synthesis using heterogeneous Au/TiO2 catalyst
US11827595B2 · kind B2 · utility
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Key dates
| Filing date | Nov 12, 2019 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jan 5, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for direct esterification of an alkyl aldehyde with an alkyl alcohol to produce an alkyl ester is disclosed. The process comprises reacting an alkyl aldehyde with an alkyl alcohol in the presence of an Au/TiOa catalyst, a base and an enal or oxygen to form an ester and an aldehyde. The process avoids liberation of water and avoids the step of oxidation of the alkyl aldehyde to an alkyl acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.