Process for the preparation of anthraquinone
US4152340A · kind A · utility
1Cited by
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5Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 19, 1977 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Aug 19, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C46/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process which comprises reacting 1,4,4a,5,8,8a,9a,10a-octahydro-anthraquinone with nitrobenzene in the presence of a catalytic amount of a basic compound soluble in the reaction medium and of an inhibitor of free radical reactions to produce anthraquinone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.