Process for making 3-hydroxypropanal and 1,3-propanediol
US5256827A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1993 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Feb 5, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/58
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a process for making 3-hydroxypropanal and 1,3-propanediol which by intimately contacting PA0 (a) ethylene oxide, PA0 (b) tertiary phosphine-complexed cobalt carbonyl catalyst, wherein said phosphine, prior to being complexed with said cobalt carbonyl catalyst, is partially oxidized to provide an oxygen to phosphorus ratio no greater than about 0.5, PA0 (c) carbon monoxide, and PA0 (d) hydrogen, the molar ratio of carbon monoxide to hydrogen being from about 4:1 to about 1:6, in liquid-phase solution in an inert reaction solvent, at a temperature of from about 30.degree. C. to about 150.degree. C. and a pressure of from about 50 psi to about 10,000 psi. The use of the partially oxidized tertiary phosphine ligand enhances the activity of the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.