Process for the selective preparation of meta-chloroanilines
US4532350A · kind A · utility
3Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1982 |
| Grant date | Jul 30, 1985 |
| Priority date | — |
| Expiry date | Dec 30, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/74
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the selective preparation of metachloroanilines. It is carried out by the hydrodechlorination of polychloroanilines or polychloronitrobenzenes with hydrogen, in the liquid phase and in an acid medium, under the action of heat and under pressure, in the presence of a noble metal used in association with a heavy metal. These meta-chloroanilines are intermediates especially for active plant-protection substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.