CH185045A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

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Publication number
CH185045A
CH185045A CH185045DA CH185045A CH 185045 A CH185045 A CH 185045A CH 185045D A CH185045D A CH 185045DA CH 185045 A CH185045 A CH 185045A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
dye
dianotized
oxy
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 CH185045A publication Critical patent/CH185045A/en

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Description

  

  Verfahren zur Darstellung eines     Azofar        hstoffes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen blauen Acetat  seidenfarbstoff,wenn man     dianotiertes        6-Brom-          2.4-diriitro-l-aininobenzol    mit     1-Amirionaph-          thalin    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen Farbstoff mit ganz ähnlichen  Eigenschaften, wenn man     6-Chlor-2.4-dinitro-          1-aininobenzol    dianotiert und mit     1-Oxyätbyl-          tetrahydro-3-oxy-a-naphthochinolin        derFormel     
EMI0001.0013     
    kuppelt.  <I>Beispiel</I>  22 Teile     6-Chlor-2.        4-diriitro-l-aminobenzol     werden in der üblichen Weise dianotiert und    die mineralsäurehaltige     Diazolösung    wird in  eine kalte Lösung von 27 Teilen     1-Oxy-          ätliyltetrahydi-o-3-oxy-a-naphthochiriolin    ein  laufen gelassen.

   Man stumpft mit soviel       Natriumacetat    ab, bis die Kupplung beendet  ist. Der erhaltene Farbstoff färbt     Acetatseide     klar grünblau.



  Process for the preparation of an azo fiber. According to the process described in the main patent, a blue acetate silk dye is obtained when dianotated 6-bromo-2,4-diriitro-1-aininobenzene is coupled with 1-amirionaphthalene.



  As has now also been found, a dye with very similar properties is obtained if 6-chloro-2,4-dinitro-1-aininobenzene is dianotized and 1-oxyethyl-tetrahydro-3-oxy-a-naphthoquinoline of the formula
EMI0001.0013
    clutch. <I> Example </I> 22 parts of 6-chloro-2. 4-diriitro-1-aminobenzene are dianotized in the usual manner and the mineral acid-containing diazo solution is run into a cold solution of 27 parts of 1-oxyethyltetrahydi-o-3-oxy-a-naphthochiriolin.

   It is blunted with enough sodium acetate until the coupling has ended. The dye obtained gives acetate silk a clear green-blue color.

Claims (1)

PATENTANSPRÜCH: Verfahren zur Darstellung eines Acetat seide in echten, klaren grünblauen Tönen anfärbenden Farbstoffes, dadurch gekenn zeichnet, dass man 6-Chlor-2.4-dinitro-l- aminobenzol dianotiert und die Diazoverbin- dung mit 1-Oxyäthyltetrahydro-3-oxy-a-naph- thochinolin kuppelt. PATENT CLAIM: Process for the preparation of a dye which stains acetate silk in real, clear green-blue shades, characterized in that 6-chloro-2,4-dinitro-1-aminobenzene is dianotized and the diazo compound is dianotated with 1-oxyethyltetrahydro-3-oxy-a -naph- thoquinoline couples.
CH185045D 1933-04-27 1934-11-21 Process for the preparation of an azo dye. CH185045A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH168144T 1933-04-27
DE185045X 1933-12-19

Publications (1)

Publication Number Publication Date
CH185045A true CH185045A (en) 1936-06-30

Family

ID=25718535

Family Applications (1)

Application Number Title Priority Date Filing Date
CH185045D CH185045A (en) 1933-04-27 1934-11-21 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH185045A (en)

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