Preparation of methylpentamethylenediamine and methylpiperidine
US8247561B2 · kind B2 · utility
2Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2009 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Mar 13, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/133
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Methyl-2-pentamethylenediamine and methyl-3-piperidine are prepared by hydrogenation of methylglutaronitrile in the presence of a catalyst including cobalt, chromium, and nickel, especially a catalyst based on Raney cobalt doped with nickel and chromium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.