Method for producing aliphatic o-arylurethanes
US4925971A · kind A · utility
12Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1988 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Dec 2, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C269/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for producing aliphatic O-arylurethanes by the reaction of an aliphatic primary amine with an aromatic hydroxyl compound and urea. Ammonia produced as a by-product in the reaction is removed during the reaction so that the ammonia concentration of the reaction solution is maintained at 2 wt % or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.