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Sandoz AG
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Sandoz AG
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Priority claimed from CH1656169Aexternal-prioritypatent/CH519008A/en
Application filed by Sandoz AGfiledCriticalSandoz AG
Publication of ES385232A2publicationCriticalpatent/ES385232A2/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Paper
(AREA)
Abstract
Improvements introduced in the object of the main patent number 367,157, filed on May 13, 1969, by: Procedure for the preparation of basic azo dyes, free of acid-sulfonic groups of formula: **(See formula)** wherein D represents an aromatic-carbocyclic or aromatic-heterocyclic moiety, optionally substituted, R means a hydrogen atom or an organic moiety, R1 means hydrogen or a hydrocarbon moiety, optionally substituted, or a heterocyclic moiety, in optionally substituted, or an amino group, optionally substituted, A ⊖ an anion equivalent to the dye cation and Z means a component of a ring of aromatic character, characterized in that the diazo compound of an amine of formula: D - NH2 (XIV) is coupled with a coupling component of the formula: (see formula) (Machine-translation by Google Translate, not legally binding)
ES385232A1969-11-071970-11-05Procedure for the preparation of basic azoic colorents. (Machine-translation by Google Translate, not legally binding)
ExpiredES385232A2
(en)