ES273744A1 - Procedure for the preparation of colorants to the tub of the dibenzatrona series (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of colorants to the tub of the dibenzatrona series (Machine-translation by Google Translate, not legally binding)
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Novartis AG
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Ciba Geigy AG
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Priority claimed from CH46561Aexternal-prioritypatent/CH456000A/en
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Publication of ES273744A1publicationCriticalpatent/ES273744A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Process, for the preparation of dyestuffs to the tub of the dibenzantrone series, characterized in that a sulfonyl halide of the formula is amidated ** (See formula) ** in which Y means two alkoxy, or alkyl groups, preferably two lower alkyl or lower alkoxy groups or 1 to 4 halogen atoms or hydrogen atoms, one X, means a direct link and the other X means a group -CO-, with sulfatoalkylamines, which show a chain of more than five links between the ester group of sulfuric acid and the amine group which reacts with the sulfohalogenide. (Machine-translation by Google Translate, not legally binding)
ES0273744A1961-01-161962-01-15Procedure for the preparation of colorants to the tub of the dibenzatrona series (Machine-translation by Google Translate, not legally binding)
ExpiredES273744A1
(en)