Preparation of hydroxyanthraquinones

Details Preparation of hydroxyanthraquinones Preparation of hydroxyanthraquinones

1979-06-06

1981-09-29

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5018

Patent

active

042922488

ABSTRACT:
A process for preparing hydroxyanthraquinones from the corresponding nitroanthraquinones is provided. A nitroanthraquinone is reacted with a metal salt selected from sodium formate, potassium formate, sodium carbonate and potassium carbonate, in a specific reaction medium at a reaction temperature and for a time sufficient to convert the nitroanthraquinone to the corresponding hydroxyanthraquinone.

REFERENCES:
patent: 3031466 (1962-04-01), Budziarek et al.
patent: 3906013 (1975-09-01), Reubk et al.
The Merck Index, Stecher et al., Merck and Co., Inc., N.J., 1960, p. 952.

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