Process for the preparation of 1,4-diamino-2,3-dicyano-anthraqui

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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C07C 9712

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042947693

ABSTRACT:
2,3-Dicyano-anthraquinones of the formula ##STR1## wherein R denotes hydrogen, alkyl or cycloalkyl, are obtained in good yields and high purity by reacting compounds of the formula ##STR2## wherein X denoted hydrogen or the sulphonic acid group, with cyanides in formamide or N-methylformamide as solvents, and if appropriate oxidizing agents and heavy metal catalysts.

REFERENCES:
patent: 1938029 (1933-12-01), Kugel
patent: 4042605 (1977-08-01), Hartwig

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