Hydroformylation process
US5994591A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Jul 23, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the hydroformylation of ethylenically unsaturated compounds with carbon monoxide and hydrogen in the presence of a catalyst system comprising: PA0 a) a source of palladium, platinum, or nickel cations; PA0 b) a source of anions, other than halide anions, such as unsubstituted alkyl sulfonic acids, aryl sulfonic acids, perfluorinated alkyl sulfonic acids, perfluorinated aryl sulfonic acids, boric acid derivatives or alkylated versions thereof; PA0 c) a source of at least one bidentate ligands of the formula EQU R.sup.1 R.sup.2 M.sup.1 RM.sup.2 R.sup.3 R.sup.4 (I) PA0 wherein M.sup.1 and M.sup.2 independently represent a phosphorus, arsenic or antimony atom, R represents a bivalent bridging group containing from 1-4 atoms in the bridge, R.sup.1 and R.sup.2 together represent a bivalent cyclic group whereby the two.cndot.free valencies are linked to M.sup.1, and R.sup.3 and R.sup.4 independently represent a hydrocarbyl group, or together represent a bivalent cyclic group whereby the two free valencies are linked to M.sup.2 ; PA0 wherein said source of cations, anions, and ligands are selected to form a catalyst system having a solubility of at least 2.times.10.sup.-4 mol…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.