Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
Original Assignee
Ciba Geigy AG
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Filing date
Publication date
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Priority to ES0240789ApriorityCriticalpatent/ES240789A1/en
Publication of ES240789A1publicationCriticalpatent/ES240789A1/en
Process for the preparation of monoazo dyes, characterized in that diazo compounds based on amines of the formula are copied ** (See formula) ** wherein A means a beta-halogenated propionyl radical and D a benzene radical, in alkaline medium, with coupling components of formula ** (See formula) ** wherein one X means a hydrogen atom, and the other X a group N-CO-NH, to which effect R means an NH2 group, or the radical of a low molecular weight aliphatic alcohol linked by its oxygen atom. (Machine-translation by Google Translate, not legally binding)
ES0240789A1958-03-171958-03-17Procedure for the preparation of monoazocolorants (Machine-translation by Google Translate, not legally binding)
ExpiredES240789A1
(en)