Process for the preparation of unsaturated amino compounds
US5856578A · kind A · utility
5Cited by
10References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1996 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Nov 25, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C253/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the preparation of aromatic amino compounds which are substituted by a least one group comprising at least one unsaturated carbon-carbon bond, by catalytic hydrogenation of corresponding aromatic nitro compounds in the presence of a modified noble metal catalyst, wherein the noble metal catalyst used is platinum modified with a metal selected from the group consisting of lead, mercury, bismuth, germanium, cadmium, arsenic, antimony, silver and gold, and to novel noble metal catalysts for use in this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.