ES350575A1 - Procedure for preparing insoluble antraquinonic colorants in water. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for preparing insoluble antraquinonic colorants in water. (Machine-translation by Google Translate, not legally binding)
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.)
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Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Priority claimed from CH238567Aexternal-prioritypatent/CH495403A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES350575A1publicationCriticalpatent/ES350575A1/en
Polysaccharides And Polysaccharide Derivatives
(AREA)
Abstract
Procedure for preparing water-insoluble anthraquinone dyes, characterized by acylating the anthraquinone compounds of the formula **(See formula)** where X1 is a hydroxy group or, preferably, a radical of the formula -NHR2; X2 is a radical of the formula -NHR3 or, preferably, a hydroxy group; R1 represents a hydrogen atom or an alkyl radical; B1 and B2 signify alkyl radicals, halogen atoms or, in particular, hydrogen atoms; and R represents an aryl radical (in particular a benzene radical) containing at least one acyloxy, aryloxy, hydroxy or alkoxy group, located ortho or para to the anthraquinone radical, or a 5- or 6-membered juxtacondensed heterocyclic ring which is linked to the para position by a sulfur or oxygen atom, in the presence of an acylating derivative of an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic acid (preferably a monocarboxylic or monosulfonic acid), such as the sulfonic acid halide, or in the presence of the free acid itself, and a Friedel catalyst -Crafts. (Machine-translation by Google Translate, not legally binding)
ES350575A1967-02-171968-02-16Procedure for preparing insoluble antraquinonic colorants in water. (Machine-translation by Google Translate, not legally binding)
ExpiredES350575A1
(en)
Procedure for the preparation of substitute 2- (2º-hydroxypenyl) -benzo-triazol compounds (Machine-translation by Google Translate, not legally binding)