Preparation of bromoacetamides
US4663481A · kind A · utility
3Cited by
0References
5Claims
0Family size
Inventor
Key dates
| Filing date | Nov 19, 1984 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Nov 19, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C233/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Bromoacetamides of the formula ArCONHCH(Br)CONH.sub.2 are obtained by addition to bromine of a solution of ArCONHCH.sub.2 CN in a saturated aliphatic carboxylic acid preferably glacial acetic or propionic acid. This is an improvement in a process described in European Patent Specification No. 0059536 in which the bromine is added to a solution of the cyanomethylbenzamide, enabling consistently high yields (e.g. 75 to 90%) to be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.