Preparation of ortho-phenylenediamine
US5072044A · kind A · utility
2Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1990 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Nov 30, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/68
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A vapor phase process for the dehydrogenation of 1,2-diaminocyclohexane to form o-phenylenediamine using a catalyst containing a palladium metal and an alkali metal hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.