CH183893A - Process for the preparation of a dye. - Google Patents

Process for the preparation of a dye.

Info

Publication number
CH183893A
CH183893A CH183893DA CH183893A CH 183893 A CH183893 A CH 183893A CH 183893D A CH183893D A CH 183893DA CH 183893 A CH183893 A CH 183893A
Authority
CH
Switzerland
Prior art keywords
dye
amino
carboxylic acid
preparation
acid methyl
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 CH183893A publication Critical patent/CH183893A/en

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

Description

  

  Verfahren zur Herstellung eines Farbstoffes.    Das Hauptpatent betrifft     ein    Verfahren  zur Herstellung eines Farbstoffes, bei .dem  1-     Amino    - 4 -     halog        enanthrachinon    - 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-          antlirachinon-2-carbonsäuremethyltaurid    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    - am     inoacetanilino)    -     anthrachinon-2-        earbon-          säuremethyltaurid,    färbt Wolle     aus    saurem  Bade in     grünstichig    blauen Tönen.  



       Beispiel:     12 Teile     1-Amino-4-bromanthrachinon- ?-          carbonsäuremethyltaurid        ('erhältlich    zum Bei  spiel durch Kondensation von     1-Aminoanthra-          chinon-2-carbonsäurechlorid    mit     11'Iethyltaurin       in     alkalischer    Lösung und     Bromieren)    werden  in 100 Teilen Wasser mit 12 Teilen Natrium  bicarbonat, 1 Teil Kupfersulfat und 20 Teilen       p-Aminoacetanilid    so lange auf 70   C er  hitzt, bis die     Farbstoffbildung    beendet ist.  Nach dem Erkalten saugt man den gebildeten  Farbstoff 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-halo-enanthraquinone-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-halo-antlirachinone-2-carboxylic acid methyl 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, 1-amino-4- (p - am inoacetanilino) - anthraquinone-2-earbonic acid methyltauride, dyes wool from an acid bath in greenish blue shades.



       Example: 12 parts of 1-amino-4-bromoanthraquinone? - carboxylic acid methyl tauride ('obtainable for example by condensation of 1-aminoanthraquinone-2-carboxylic acid chloride with 11'-ethyltaurine in an alkaline solution and bromination) are added to 100 parts of water with 12 Parts of sodium bicarbonate, 1 part of copper sulfate and 20 parts of p-aminoacetanilide are heated to 70 C until the dye has formed. After cooling, the dye formed is filtered off with suction.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Farb stoffes, dadurch .gekennzeichnet, dass man 1- Amino - 4 - halogenanthrachinon - 2 - carbon - säuremethyltaurid mit p-Aminoacetanilid kondensiert. Der erhaltene Farbstoff, das 1-Amino-4- (p - aminoacetanilino) -anthrachinon-2- carbon- säuremethyltaurid, färbt Wolle aus saurem Bade in grünstichig blauen Tönen. PATENT CLAIM: Process for the production of a dye, characterized in that 1-amino-4-halogenanthraquinone-2-carboxylic acid methyl tauride is condensed with p-aminoacetanilide. The dye obtained, 1-amino-4- (p - aminoacetanilino) anthraquinone-2-carboxylic acid methyl tauride, dyes wool from an acid bath in greenish blue shades.
CH183893D 1933-01-21 1933-12-20 Process for the preparation of a dye. CH183893A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE183893X 1933-01-21
CH178226T 1933-12-20

Publications (1)

Publication Number Publication Date
CH183893A true CH183893A (en) 1936-04-30

Family

ID=25720100

Family Applications (1)

Application Number Title Priority Date Filing Date
CH183893D CH183893A (en) 1933-01-21 1933-12-20 Process for the preparation of a dye.

Country Status (1)

Country Link
CH (1) CH183893A (en)

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