Hydroformylation process
US7271295B1 · kind B1 · utility
10Cited by
10References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 13, 2006 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Jan 9, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/49
- 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 a solvent and a catalyst system comprising a rhodium complex and a 2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis[bis(3,5-di-n-alkylphenyl)phosphino]butane. The process gives high yield of 4-hydroxybutyraldehyde compared to 3-hydroxy-2-methylpropionaldehyde.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.