Methylcyclohexane as allyl alcohol hydroformylation solvent
US11613510B2 · kind B2 · utility
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Key dates
| Filing date | Apr 7, 2022 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Apr 7, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/822
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of 4-hydroxybutyraldehyde is described. The process comprises reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of methylcyclohexane as a reaction solvent and a catalyst system comprising a rhodium complex and a substituted or unsubstituted diphosphine ligand. The use of the methylcyclohexane increases the reaction rate while also giving a high yield of 4-hydroxybutyraldehyde compared to 3-hydroxy-2-methylpropionaldehyde and improving the separation of the hydroxyaldehyde products from the catalyst system.
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