Preparation of 2-methylpentadiamine
US4987263A · kind A · utility
1Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1988 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Aug 12, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
2-Methylpentanediamine is prepared by selectively liquid-phase hydrogenating a minimum concentration 2-methylglutaronitrile, initially nonammoniacal basic reaction medium in the presence of a catalytically effective amount of a Raney nickel-based catalyst, at a temperature of from 40.degree. to 150.degree. C., at a total pressure of less than 40 bars, and said reaction medium containing not more than 10% by weight of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.