Process for the manufacture of anthraquinone compounds
US4086252A · kind A · utility
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2References
8Claims
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Assignee
Inventor
Key dates
| Filing date | Nov 8, 1976 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Nov 8, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B5/2472
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process for the production of .alpha.-(carboxyethylamino)anthraquinones by reacting an .alpha.-aminoanthraquinone with an alkenyl carboxylic acid in sulphuric acid medium containing boric acid, metaboric acid or boric oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.