CH173279A - Process for the preparation of a dye of the gallocyanin series. - Google Patents

Process for the preparation of a dye of the gallocyanin series.

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Publication number
CH173279A
CH173279A CH173279DA CH173279A CH 173279 A CH173279 A CH 173279A CH 173279D A CH173279D A CH 173279DA CH 173279 A CH173279 A CH 173279A
Authority
CH
Switzerland
Prior art keywords
series
dye
preparation
gallocyanin
dyes
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH173279A publication Critical patent/CH173279A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines     Farbstoffes    der     Gallocyaninreihe.       Es wurde gefunden, dass man zu wert  vollen Farbstoffen der     Gallocyaninreihe    ge  langt, wenn man     Gallussäure    oder deren De  rivate, wie     Gallamid,        Gallanilid,        Gallussäure-          ester    oder auch     Pyrogallol    und Abkömmlinge  dieser Körper, mit     Nitrosoverbindungen    se  kundärer oder tertiärer aromatischer Amine  der allgemeinen Formel:

    
EMI0001.0011     
    kondensiert, worin R Wasserstoff,     Alkyl,          nxalkyl,        Sulfalkyl    oder     Aralkyl    bedeutet.  



  Die so erhaltenen Farbstoffe können ge  gebenenfalls nach den bei der Herstellung  von Farbstoffen der     Gallocyaninreihe    übli  chen Methoden in weitere Derivate über  geführt werden, zum Beispiel durch Ab  spaltung der     Carboxylgruppe,    Reduktion zu       Leukofarbstoffen,    Kondensation mit Mono  oder Diaminen oder deren     Sulfonsäuren,     mit Aldehyden,     Phenolen,        Naphtholen    oder         Naphtholsulfonsäuren.    Die nach diesen Ar  beitsweisen gewonnenen Produkte können  nötigenfalls noch einer nachträglichen     Sul-          fonierung    unterworfen werden.  



  Die so erhältlichen     Farbstoffe    zeichnen sieh  durch eine besonders für Druckfarbstoffe  erwünschte vorzügliche Löslichkeit, durch  Klarheit des Farbtones und durch gute Echt  heitseigenschaften aus.  



  Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines neuen  Farbstoffes der     Gallocyaninreihe    durch Kon  densation von     Gallussäure    mit     Nitrosophenyl-          butylamino-ss-oxypropan-y-sulfosäure.     



  <I>Beispiel:</I>  17 Gewichtsteile     Gallussäure    werden in  250 Gewichtsteilen 95%igem Alkohol heiss  gelöst, und in die Lösung werden 45 Ge  wichtsteile     Nitrosophenylbutylamino-ss-oxy-          propan-y-sulfosäure    eingetragen in dem Masse,  wie die Gelbfärbung verschwindet. Der Farb  stoff der Formel;    
EMI0002.0001     
    fällt aus. Als Alkali- oder     Ammoniumsalz     ist er vorzüglich löslich     und    gibt auf Baum  wolle     mittelst    Chrombeize gedruckt sehr  gleichmässige, blaue Töne von guter Licht  Chlor- und Seifenechtheit.



  Process for the preparation of a dye of the gallocyanin series. It has been found that valuable dyes of the gallocyanin series are obtained if gallic acid or its derivatives, such as gallamide, gallanilide, gallic acid ester or even pyrogallol and derivatives of these bodies, with nitroso compounds of secondary or tertiary aromatic amines of the general formula :

    
EMI0001.0011
    condensed, wherein R is hydrogen, alkyl, nxalkyl, sulfalkyl or aralkyl.



  The dyes obtained in this way can optionally be converted into further derivatives by the methods customary in the production of dyes of the gallocyanin series, for example by splitting off the carboxyl group, reduction to leuco dyes, condensation with mono or diamines or their sulfonic acids, with aldehydes, Phenols, naphthols or naphtholsulfonic acids. The products obtained by this method of operation can, if necessary, also be subjected to a subsequent sulphonation.



  The dyes obtainable in this way are distinguished by their excellent solubility, which is particularly desirable for printing dyes, by the clarity of the hue and by good fastness properties.



  The subject of the present patent is a process for the preparation of a new dye of the gallocyanin series by condensation of gallic acid with nitrosophenylbutylamino-ss-oxypropane-y-sulfonic acid.



  <I> Example: </I> 17 parts by weight of gallic acid are dissolved in 250 parts by weight of 95% alcohol, and 45 parts by weight of nitrosophenylbutylamino-ß-oxy-propane-γ-sulfonic acid are added to the solution in the same proportion as the yellow color disappears. The dye of the formula;
EMI0002.0001
    was cancelled. As an alkali or ammonium salt, it is extremely soluble and, when printed on cotton by means of chrome stain, gives very even, blue tones of good light, chlorine and soap fastness.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neueil Farbstoffes der Galloeyaninreihe, dadurch gekennzeichnet, dass man Gallussäure mit Nitrosophenylbutylamino -ss- ogypropan-y-sul- fosäure kondensiert. Der entstandene Farb stoff enthält eine Sulfogruppe in der Seiten kette. Er besitzt als Alkali- oder Ammonium salze eine vorzügliche Löslichkeit und gibt mittelst Chrombeize auf Baumwolle gedruckt sehr gleichmässige, blaue Drucke von guter Licht-, Chlor- und Seifenechtheit. PATENT CLAIM: Process for the preparation of a new dye of the galloeyanin series, characterized in that gallic acid is condensed with nitrosophenylbutylamino -ss- ogypropan-y-sulfonic acid. The resulting dye contains a sulfo group in the side chain. As alkali or ammonium salts, it has excellent solubility and, by means of a chrome stain, gives very even, blue prints of good fastness to light, chlorine and soap when printed on cotton.
CH173279D 1932-04-14 1933-04-05 Process for the preparation of a dye of the gallocyanin series. CH173279A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE173279X 1932-04-14
CH169050T 1933-04-05

Publications (1)

Publication Number Publication Date
CH173279A true CH173279A (en) 1934-11-15

Family

ID=25718669

Family Applications (1)

Application Number Title Priority Date Filing Date
CH173279D CH173279A (en) 1932-04-14 1933-04-05 Process for the preparation of a dye of the gallocyanin series.

Country Status (1)

Country Link
CH (1) CH173279A (en)

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