CH183890A - Process for the preparation of a dye. - Google Patents

Process for the preparation of a dye.

Info

Publication number
CH183890A
CH183890A CH183890DA CH183890A CH 183890 A CH183890 A CH 183890A CH 183890D A CH183890D A CH 183890DA CH 183890 A CH183890 A CH 183890A
Authority
CH
Switzerland
Prior art keywords
dye
carboxylic acid
amino
preparation
tauride
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 CH183890A publication Critical patent/CH183890A/en

Links

Description

  

      Verfahren    zur Herstellung eines Farbstoffes.    Das Hauptpatent     betrifft    ein Verfahren  zur Herstellung eines Farbstoffes, bei dem  1-     Amino    - 4 -     halogenanthrachinon    - 2 -     carbon        -          säuretaurid    mit Anilin kondensiert wird.  



  Es wurde nun gefunden,     dass    man     einen     ähnlichen, ebenfalls sehr     wertvollen    Farb  stoff erhält, wenn man     1-Amino-4-halogen-          anthraehinon-2-carbonsäuretaurid    mit     p-          Aminoacetanilid    kondensiert. Die Konden  sation wird zweckmässig in Gegenwart von       Wasser    unter Zusatz von säurebindenden  Mitteln und Katalysatoren ausgeführt.  



  Der erhaltene Farbstoff, das     1-Amino-4-          (p        -aminoaceta.nilino)    -     anthrachinon-    2     -carbon-          säuretaurid,    färbt Wolle     aus    saurem Bade in  grünblauen Tönen, die eine sehr schöne  Abendfarbe besitzen.  



       Beispiel:     12 Teile     1-Amino-4-bromanthrachinon-2-          carbonsäuretaurid    (erhältlich zum     Beispiel     durch     Kondensation    von     1-Aminoanthra-          ohinon-2-carbonsäurechlorid    mit     Taurin    in    alkalischer Lösung und     Bromieren)    werden  in 100 Teilen Wasser mit 12 Teilen     Natrium-          bicarbonat,    1     Teil    Kupfersulfat und 20 Tei  len     p-Aminoacetanilid    so     lange    auf 90   C er  hitzt,

       bis        die        Farbstoffbildung    beendet ist.  Nach dem Erkalten scheidet man den Farb  stoff in der üblichen Weise ab.



      Process for the preparation of a dye. The main patent relates to a process for the production of a dye in which 1-amino-4-haloanthraquinone-2-carboxylic acid tauride is condensed with aniline.



  It has now been found that a similar, also very valuable dye is obtained if 1-amino-4-halogenanthraehinone-2-carboxylic acid tauride is condensed with p-aminoacetanilide. The condensation is expediently carried out in the presence of water with the addition of acid-binding agents and catalysts.



  The dye obtained, the 1-amino-4- (p -aminoaceta.nilino) -anthraquinone-2-carboxylic acid tauride, dyes wool from an acid bath in green-blue tones, which have a very beautiful evening color.



       Example: 12 parts of 1-amino-4-bromoanthraquinone-2-carboxylic acid tauride (obtainable for example by condensation of 1-aminoanthraquinone-2-carboxylic acid chloride with taurine in an alkaline solution and bromination) are added to 100 parts of water with 12 parts of sodium bicarbonate , 1 part copper sulphate and 20 parts p-aminoacetanilide is heated to 90 C for

       until dye formation is complete. 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 p-Aminoacetanilid konden siert. Der erhaltene Farbstoff, das 1-Amino-4 (p-aminoa.cetanilino)-anthrachinon-2-carbon- säuretaurid, färbt Wolle aus saurem Bade in grünblauen Tönen, die eine sehr schöne Abendfarbe besitzen. PATENT CLAIM: Process for the production of a dye, characterized in that 1-amino-4-halogenanthraquinone-2-carboxylic acid tauride is condensed with p-aminoacetanilide. The dye obtained, the 1-amino-4 (p-aminoa.cetanilino) -anthraquinone-2-carboxylic acid tauride, dyes wool from an acid bath in green-blue tones, which have a very beautiful evening color.
CH183890D 1933-01-21 1933-12-20 Process for the preparation of a dye. CH183890A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE183890X 1933-01-21
CH178226T 1933-12-20

Publications (1)

Publication Number Publication Date
CH183890A true CH183890A (en) 1936-04-30

Family

ID=25720097

Family Applications (1)

Application Number Title Priority Date Filing Date
CH183890D CH183890A (en) 1933-01-21 1933-12-20 Process for the preparation of a dye.

Country Status (1)

Country Link
CH (1) CH183890A (en)

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