Preparation of quinonediimines from phenylenediamines using hydrogen peroxide and a catalyst
US6271420A · kind A · utility
4Cited by
2References
22Claims
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Key dates
| Filing date | Apr 21, 2000 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Apr 21, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A phenylenediamine compound can be converted, with high selectivity, into its corresponding quinonediimine by reacting the phenylenediamine with hydrogen peroxide in the presence of a catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.