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  • 1
    Electronic Resource
    Electronic Resource
    Reaktivität von Dichlor- und Trichlorpyrimidyl-Farbstoffen und Hydrolysierbarkeit der Färbungen (1962)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 74 (1962), S. 712-716 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: An einigen Beispielen wird gezeigt, daß die Reaktivität von Dichlor- und Trichlorpyrimidyl-Farbstoffen und die Hydrolysierbarkeit der Färbungen durch das Brückenglied zwischen farbgebendem Körper und Reaktivsystem bestimmt wird. Mit steigender Reaktivität der Farbstoffe nimmt die Tendenz der Färbungen zur sauren und vor allem zur alkalischen Hydrolyse zu. In alkalischem Medium werden die Färbungen von Farbstoffen mit Sauerstoffbrücken vorwiegend zwischen dem Reaktivsystem und dem farbgebenden Körper gespalten, während bei Färbungen von Farbstoffen mit Imino- oder Methyliminobrücken die Bindung Reaktivsystem-Cellulose hydrolysiert wird.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19620741803
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    3-Hydroxy-1,2,4-benzotriazin-1-oxid-7-carbonsäure und verwandte Verbindungen (1966)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 49 (1966), S. 651-660 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The chloride of 3-chloro-1,2,4-benzotriazine-1-oxide-7-carboxylic acid has been prepared, and from this a number of derivatives of 3-hydroxy-1,2,4-benzotriazine-1-oxide-7-carboxylic acid were synthesized by stepwise substitution of the two halogen atoms. This acid chloride has further been used for linking dye components containing amino groups, and for the synthesis of reactive dyes whose suitability for dyeing cellulose and wool has been examined.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19660490104
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Reactivity of Dichloro- and Trichloropyrimidyl Dyes and the Sensitivity of their Dyeings to Hydrolysis (1962)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 1 (1962), S. 568-572 
    Details
    ISSN: 0570-0833
    Keywords: Trichloropyrimidyl dyes ; Dyes/Pigments ; Dichloropyrimidyl dyes ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Several examples are used to show that the reactivity of dichloro- and trichloropyrimidyl dyes and the sensitivity of their dyeings to hydrolysis are determined by the nature of the bridge unit between the chromophore and the reactive system. The tendency of the dyeings to hydrolyze in acid and, more particularly, in alkaline media increases with increasing reactivity of the dyes. In alkaline media, dyeings made with dyes containing oxygen bridges are cleaved mainly between the reactive system and the chromophore, while in dyeings made with dyes containing imino or methylimino bridges, the linkage between the reactive system and the cellulose is hydrolyzed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196205681
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    Paper (German National Licenses)
    Fulltext
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