Process for preparing 1-aminoanthraquinone

Details Process for preparing 1-aminoanthraquinone Process for preparing 1-aminoanthraquinone

1975-03-10

1976-08-17

Demers, Arthur P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260369, C07C 9724

Patent

active

039754111

ABSTRACT:
5-Nitro-1,4,4a,9a-tetrahydroanthraquinone is suspended in water in the form of a powder and then catalytically hydrogenated in the presence both of a hydrogenation catalyst containing a metal such as palladium, platinum or the like as its effective component and of a base such as sodium hydroxide, pyridine or the like thereby to form a hydroquinone type compound of 1-aminoanthraquinone. By contacting the resultant reaction solution with air or by adding an oxidizing agent such as hydrogen peroxide to the reaction solution, the hydroquinone type compound is readily oxidized into 1-aminoanthraquinone in the suspended state.

REFERENCES:
patent: 2948739 (1960-08-01), Harris et al.
Vorozhtsou et al. Chemical Abstracts, 55 (1961) Column 1547 e-g.

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