Production of ethylenediamine and N-aminoethylpiperazine from piperazine
US4602091A · kind A · utility
15Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1984 |
| Grant date | Jul 22, 1986 |
| Priority date | — |
| Expiry date | Jan 25, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D295/13
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Piperazine is substantially selectively converted to ethylenediamine and N-aminoethylpiperazine by catalytically reductively aminating piperazine in the presence of added hydrogen, ammonia and (optionally) water under reductive amination conditions selected to provide a piperazine conversion of not more than about 30%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.