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Novartis AG
Original Assignee
Ciba Geigy AG
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Publication date
Priority claimed from CH110569Aexternal-prioritypatent/CH508694A/en
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Publication of ES375815A1publicationCriticalpatent/ES375815A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Procedure for the preparation of azo dyes of the formula ** (see formula) ** In which A is an aryl radical; X is a sulfur atom or an oxygen atom R is a hydrogen atom or an organic radical (in particular, a methyl group) N is equal to 1 or 2 R'is an alkyl group Y- it's an anion; y B is the radical of a coupling component, characterized by diazoating an amine of the formula ** (see formula) ** Copulate it with an h-b coupling component and, if necessary, quaternize it by treatment with alkylating agents. (Machine-translation by Google Translate, not legally binding)
ES375815A1969-01-241970-01-23Procedure for the preparation of azoic colors (Machine-translation by Google Translate, not legally binding)
ExpiredES375815A1
(en)