CH185047A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH185047A
CH185047A CH185047DA CH185047A CH 185047 A CH185047 A CH 185047A CH 185047D A CH185047D A CH 185047DA CH 185047 A CH185047 A CH 185047A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
chloro
dye
aminobenzene
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 CH185047A publication Critical patent/CH185047A/en

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Description

       

      Verfahren    zur Darstellung eines     Azofar        bstoffes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen blauen Acetat  seiderrfarbstoff, wenn man dianotiertes     6-Brom-          2.4-dirritr-o-l-amirrobenzol    mit     1-Arrrinonaph-          thalin    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen Farbstoff mit ganz ähnlichen  Eigenschaften, wenn man     6-Clrlor-2.        4-dirritro-          1-aminobenzol    dianotiert und mit     Tetrahydro-          3-o%y-10-chlor--ct-naphthochinolira    der Formel  
EMI0001.0013     
    kuppelt.  <I>Beispiel:</I>  22 Teile     6-Chlor-2.4-dinitro-l-aminobenzol     werden in der üblichen Weise dianotiert und    die mineralsäurehaltige     Diazolösung    wird in  eine kalte Lösung von 25 Teilen     Tetrahydro-          3-oxy-10-chlor-a-naphthochinolin    einlaufen ge  lassen.

   Man stumpft mit soviel     Natriumacetat     ab, bis die Kupplung beendet ist. Der erhal  tene Farbstoff färbt     Acetatseide    klar grün  blau.



      Process for the preparation of an azo dye. According to the process described in the main patent, a blue acetate dye is obtained when dianotated 6-bromo-2,4-dirritr-o-1-amirrobenzene is coupled with 1-arrrinonaphthalene.



  As has now been found further, a dye with very similar properties is obtained if 6-chloro-2. 4-dirritro-1-aminobenzene dianotized and tetrahydro-3-o% y-10-chloro-ct-naphthoquinolira of the formula
EMI0001.0013
    clutch. <I> Example: </I> 22 parts of 6-chloro-2,4-dinitro-l-aminobenzene are dianotized in the usual way and the mineral acid-containing diazo solution is poured into a cold solution of 25 parts of tetrahydro-3-oxy-10-chloro- a-naphthoquinoline run in.

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

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Aoetat- seide in echten, klaren grünblauen Tönen an färbenden Farbstoffes, dadurch gekennzeich net, da1S man 6-Chlor-2.4-dinitro-l-amino- benzol dianotiert und die Diazoverbindung mit Tetrahydro-3-oxy-10-chlor-a-naphtho- chinolin kuppelt. PATENT CLAIM: Process for the production of an acetate silk in real, clear green-blue shades of coloring dye, characterized in that 6-chloro-2,4-dinitro-1-aminobenzene is dianotated and the diazo compound with tetrahydro-3-oxy-10 -chlor-a-naphtho-quinoline couples.
CH185047D 1933-04-27 1934-11-21 Process for the preparation of an azo dye. CH185047A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH168144T 1933-04-27
DE185047X 1934-08-09

Publications (1)

Publication Number Publication Date
CH185047A true CH185047A (en) 1936-06-30

Family

ID=25718537

Family Applications (1)

Application Number Title Priority Date Filing Date
CH185047D CH185047A (en) 1933-04-27 1934-11-21 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH185047A (en)

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