Process for preparing dinitroanthraquinones

Details Process for preparing dinitroanthraquinones Process for preparing dinitroanthraquinones

1972-10-04

1978-02-28

Myers, Jane S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 7937

Patent

active

040767345

ABSTRACT:
A process for preparing 1,5- and 1,8-dinitroanthraquinones having high purity by reacting anthraquinone and nitric acid and sulfuric acid, sulfuric acid being used in an amount of less than that of said nitric acid, and a method of separating the resulting 1,5-and 1,8-dinitroanthraquinone mixture into each component by using nitrobenzene and/or nitrotoluene.

REFERENCES:
Dhar, as cited in Chem. Abst. 14, pp. 3404-3405, (1920).
Lubs, The Chemistry of Synthetic Dyes & Pigments, p. 12, (1955).
Bottger et al., Ann. 160, pp. 145-148, (1871).

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