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CH178226A - Process for the preparation of a dye. - Google Patents

Process for the preparation of a dye.

Info

Publication number
CH178226A
CH178226A CH178226DA CH178226A CH 178226 A CH178226 A CH 178226A CH 178226D A CH178226D A CH 178226DA CH 178226 A CH178226 A CH 178226A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
amino
carboxylic acid
aniline
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 CH178226A publication Critical patent/CH178226A/en

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

Description

  

  Verfahren zur Herstellung eines     Farbstoffes.       Es wurde gefunden, dass man einen wert  vollen     Farbstoff    erhält, wenn man     1-Amino-          4-        halogenarrtlrrachirron-2-carbonsäuretaurid     mit Anilin kondensiert. Die Kondensation  wird zweckmässig in Gegenwart von Wasser  unter Zusatz von     säur-ebindenderr        Alitteln     und Katalysatoren ausgeführt.  



  Der erhaltene Farbstoff, das     1-Amino-4-          arrilirroanthrachinon-2-car-borrsäuretaur-id,färbt     Wolle aus     saurein    Bade in blauen Tönen.  <I>Beispiel:</I>  12 Teile     1-Anrirro-4-br-ornanthrachirrorr-2-          carbonsäuretaurid    (erhältlich zum Beispiel       durch    Kondensation von     1-Aminoanthrachinon-          2-carbonsäurechlorid    mit     Taurin    in alkalischer  Lösung und Biomieren) werden in 100 Teilen    Wasser mit 12 Teilen     Natriumbicarbonat,     1 Teil Kupfersulfat und 15 Teilen Anilin  solange auf 90   C erhitzt, bis die Farbstoff  bildung beendet ist.

   Nach dem Erkalten  scheidet man den Farbstoff in der üblichen  Weise ab.



  Process for the preparation of a dye. It has been found that a valuable dye is obtained if 1-amino-4-halogenarrtlrrachirron-2-carboxylic acid tauride is condensed with aniline. The condensation is expediently carried out in the presence of water with the addition of acid-binding agents and catalysts.



  The dye obtained, 1-amino-4-arrilirroanthraquinone-2-car-borric acid tauride, dyes wool from acidic baths in blue tones. <I> Example: </I> 12 parts of 1-anrirro-4-br-ornanthrachirrorr-2-carboxylic acid tauride (obtainable for example by condensation of 1-aminoanthraquinone-2-carboxylic acid chloride with taurine in an alkaline solution and biomier) are in 100 parts Water with 12 parts of sodium bicarbonate, 1 part of copper sulfate and 15 parts of aniline is heated to 90 ° C. until the dye has formed.

   After cooling, the dye is separated off in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Farb stoffes, dadurch gekennzeichnet, dass man 1-Amino-4- halogenanthrachinon -2 -carbon- säuretaurid mit Anilin kondensiert. Der erhaltene Farbstoff, das 1-Amino-4- anilinoanthrachinon-2.carbonsäur@etaurid, färbt Wolle aus saurem Bade in blauen Tönen. PATENT CLAIM: Process for the production of a dye, characterized in that 1-amino-4-halogenanthraquinone -2-carboxylic acid tauride is condensed with aniline. The dye obtained, 1-amino-4-anilinoanthraquinone-2.carbonsäur@etaurid, dyes wool from an acid bath in blue tones.
CH178226D 1933-01-21 1933-12-20 Process for the preparation of a dye. CH178226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE178226X 1933-01-21

Publications (1)

Publication Number Publication Date
CH178226A true CH178226A (en) 1935-07-15

Family

ID=5704945

Family Applications (1)

Application Number Title Priority Date Filing Date
CH178226D CH178226A (en) 1933-01-21 1933-12-20 Process for the preparation of a dye.

Country Status (1)

Country Link
CH (1) CH178226A (en)

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