Removal of tetrahydroazepine (tha) from 6-aminocapronitrile by reaction with reactive methylene compounds
US5153351A · kind A · utility
7Cited by
6References
3Claims
0Family size
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Key dates
| Filing date | Jan 6, 1992 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Jan 6, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C253/34
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A mixture containing 6-aminocapronitrile is purified by reacting the tetrahydroazepine contained therein with a methylene compound, and then distilling the 6-aminocapronitrile from the resulting mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.