Process for preparing succinonitrile and use of succinonitrile
US7371884B2 · kind B2 · utility
1Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2002 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | May 9, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C253/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for preparing succinonitrile by contacting acrylonitrile (ACN) with hydrocyanic acid (HCN) in a reactor in the presence of a tertiary amine. The invention also relates to the use of succinonitrile prepared according to the process of the invention, for preparing diaminobutane. Succinonitrile is prepared by contacting ACN with HCN in the presence of a tertiary amine and a compound chosen from the group consisting of water, aliphatic alcohols, aromatic alcohols, carboxylic acids and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.