Hydroformylation process
US6127582A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1997 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Aug 27, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/16
- 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 platinum group metal cations; PA0 b) a source of non-halide anions; PA0 c) a source of at least one bidentate ligand of the formula EQU R.sup.1 R.sup.2 M.sup.1 RM.sup.2 R.sup.3 R.sup.4 (I) 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 substituted or unsubstituted cyclic group whereby the two free valencies are linked to M.sup.1, and R.sup.3 and R.sup.4 independently represent a substituted or unsubstituted hydrocarbyl group, or together represent a bivalent substituted or unsubstituted cyclic group whereby the two free valencies are linked to M.sup.2 ; and PA0 d) a source of halide anions chosen from the group of chloride, iodide and bromide and mixtures thereof, characterized by the additional presence of water, in an amount of more than 0.6 wt % based on the total of the reaction mixture and up to its solubility limit under the reactio…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.