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Application filed by Сивашський Аніліно-Барвниковий Завод, Сивашский анилинокрасочный заводfiledCriticalСивашський Аніліно-Барвниковий Завод
Publication of UA7148C2publicationCriticalpatent/UA7148C2/en
Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General
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Abstract
The invention relates to fine organic synthesis, in particular, to a method for tetrakisazodyes preparation, and can be used in chemical industry. A method is performed by combination of preliminary dianitrated 4,4'-diaminodiphenylamino-2- sulfonic acid with two moles of 2-amino-8-oxynaphthalene-6- sulfonic acid followed by the dinitration of resulted diazocompound, combination with a mixture of 1,3-diaminobenzebe with its N-carboxymethylsubstitued, and isolation of end product.
UA94010013A1992-02-191993-04-14Process for tetrakisazodyes preparation
UA7148C2
(en)