Preparation of aromatic aldehydes
US4978801A · kind A · utility
1Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1987 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Apr 28, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Aromatic aldehydes are more efficiently produced by reacting carbon monoxide/hydrogen admixture with an aromatic halide in the presence of a noble metal-based catalyst, a tertiary nitrogenous based and, if necessary, a noble metal complexing agent, e.g., a phosphine or phosphite, wherein the CO/H.sub.2 ratio is less than 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.