Process for the preparation of fluoroanilines from fluorinated nitrated benzene compounds
US5856577A · kind A · utility
2Cited by
2References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1997 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | May 28, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The instant invention relates to a process for the preparation of fluoroanilines of formula (I) wherein a fluorinated nitrated benzene compound of formula (II) is subjected to a catalytic hydrogenation in a liquid medium containing a catalyst, under hydrogen pressure, carrying out a catalytic reduction reaction and, optionally, a hydrogenolysis reaction, wherein the compound of formula (II) is introduced gradually into the said medium so that the content of compound of formula (II) in the liquid remains less than or equal to 1000 ppm by mass, in order selectively to form the compound of formula (I).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.