Selective hydrogenation of dinitrile to omega-aminonitrile catalyzed by rhodium organonitrogen complex catalyst
US4362671A · kind A · utility
12Cited by
4References
11Claims
0Family size
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Key dates
| Filing date | Oct 26, 1981 |
| Grant date | Dec 7, 1982 |
| Priority date | — |
| Expiry date | Oct 26, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A dinitrile is reacted with hydrogen in the presence of a solvent and a catalyst to form an omega-aminonitrile such as epsilon-aminocapronitrile at high selectivity. The catalyst is a rhodium complex of the formula (RR'Rh)A reacted with a strong base such as sodium hydroxide. R is derived from a diene such as 1,5-hexadiene. R' is a heterocyclic containing an aromatic ring nitrogen. A is a complex monovalent anion such as hexafluorophosphate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.