Process for the preparation of urethanes
US4709073A · kind A · utility
2Cited by
6References
45Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 17, 1985 |
| Grant date | Nov 24, 1987 |
| Priority date | — |
| Expiry date | Jun 17, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C271/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
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 catalyst comprising rhodium, as a metal or compound, and essentially free of redox-active metal halide components is disclosed. In the process of this invention, the rate of conversion and selectivity to urethane is increased by providing a primary amine in the reaction solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.