CH189800A - Process for the preparation of an insoluble azo dye. - Google Patents

Process for the preparation of an insoluble azo dye.

Info

Publication number
CH189800A
CH189800A CH189800DA CH189800A CH 189800 A CH189800 A CH 189800A CH 189800D A CH189800D A CH 189800DA CH 189800 A CH189800 A CH 189800A
Authority
CH
Switzerland
Prior art keywords
azo dye
insoluble azo
preparation
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 CH189800A publication Critical patent/CH189800A/en

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

Description

  

  Verfahren zur Herstellung eines unlöslichen     Azofarbstoffes.       Gemäss dem im Hauptpatent beschriebe  nen Verfahren erhält man einen     Acetatseide     in blaustichig roten Tönen anfärbenden un  löslichen     Azofarbstoff,    wenn man     4-Nitro-l-          aminobenzol        diazotiert    und die     Diazoverbin-          dung    mit     1-Butyl-3-ogy-7-chlortetrahydrochi-          nolin    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen Farbstoff von ähnlichen Eigen  schaften, wenn man     4-Nitro-l-aminobenzol          diazotiert    und die     Diazoverbindung    mit       1-sec.        Butyl-'3-oxy-7-methyltetrahydrochino-          lin    kuppelt.  



  <I>Beispiel:</I>  Eine     Diazolösung,    welche bereitet wurde  aus     13,S    Teilen     4-Nitro-l-aminobenzol,    lässt  man einfliessen in eine kalte Lösung von 21,9  Teilen 1-sec.Butyl-3-oxy-7-methyltetrahydro-         chinolin    in 20 Teilen Salzsäure 23'     B6    und  800 Teilen Wasser und stumpft zur Beendi  gung der Kupplung     mit        Natriumacetat    ab.  Der erhaltene Farbstoff färbt     Acetats,eide    in  klaren     blauen;        Bordotönen    an.



  Process for the preparation of an insoluble azo dye. According to the process described in the main patent, an insoluble azo dye which stains acetate silk in bluish red shades is obtained if 4-nitro-l-aminobenzene is diazotized and the diazo compound is coupled with 1-butyl-3-ogy-7-chlorotetrahydroquinoline .



  As has now been found further, a dye of similar properties is obtained if 4-nitro-l-aminobenzene is diazotized and the diazo compound with 1 sec. Butyl-3-oxy-7-methyltetrahydroquinoline couples.



  <I> Example: </I> A diazo solution, which was prepared from 13.5 parts of 4-nitro-l-aminobenzene, is allowed to flow into a cold solution of 21.9 parts of 1-sec-butyl-3-oxy- 7-methyltetrahydroquinoline in 20 parts of hydrochloric acid 23 'B6 and 800 parts of water and is blunted to complete the coupling with sodium acetate. The dye obtained stains acetate, both in clear blue; Bordo tones on.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines. unlös lichen Azofarbstoffes, dadurch - gekennzeich net, dass man 4-Nitro-l-aminobenzol diazotiert un.d die Diazoverbindung mit 1-sec. Butyl-3- oxy-7-methyltetrahydrochinolin kuppelt. Der erhaltene Farbstoff färbt Acetatseide in klaren blauen Bordotönen an. PATENT CLAIM: Process for producing a. insoluble azo dye, characterized in that 4-nitro-1-aminobenzene is diazotized and the diazo compound is 1-sec. Butyl-3-oxy-7-methyltetrahydroquinoline couples. The dye obtained stains acetate silk in clear blue Bordeaux tones.
CH189800D 1934-08-11 1935-05-07 Process for the preparation of an insoluble azo dye. CH189800A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE189800X 1934-08-11
CH185944T 1935-05-07

Publications (1)

Publication Number Publication Date
CH189800A true CH189800A (en) 1937-03-15

Family

ID=25721297

Family Applications (1)

Application Number Title Priority Date Filing Date
CH189800D CH189800A (en) 1934-08-11 1935-05-07 Process for the preparation of an insoluble azo dye.

Country Status (1)

Country Link
CH (1) CH189800A (en)

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