Process for preparation of urethanes
US4629804A · kind A · utility
3Cited by
2References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1985 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Mar 4, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C271/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a process for preparing urethanes by reacting a solution of a nitrogen-containing organic compound and a hydroxyl-containing organic compound with carbon monoxide in the presence of a ruthenium catalyst. The selectivity of this process is increased by the use of methanol instead of various other alkanols, e.g. ethanol. Preferably the catalyst is a halide-free ruthenium catalyst, e.g. a ruthenium carbonyl complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.