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CH189799A - Process for the preparation of an insoluble azo dye. - Google Patents

Process for the preparation of an insoluble azo dye.

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Publication number
CH189799A
CH189799A CH189799DA CH189799A CH 189799 A CH189799 A CH 189799A CH 189799D A CH189799D A CH 189799DA CH 189799 A CH189799 A CH 189799A
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 CH189799A publication Critical patent/CH189799A/en

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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-oxy-7-chlortetrahydro-          chinolin    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-Iso-          butyl-3-oxy-7-methyltetrahydrochinolin    kup  pelt.  



  <I>Beispiel:</I>  Eine     Diazolösung,    welche bereitet wurde  aus 13,8 Teilen     4-Nitro-l-aminobenzol,        lä.sst     man einfliessen in eine kalte Lösung von 21,9  Teilen 1-Isobutyl-3-oxy-7-methyltetrahydro-         chinolin    in     20-    Teilen Salzsäure 213       B6    und  800 Teilen Wasser und stumpft zur Beendi  gung der Kupplung mit     Natriumacetat    ab.  Der erhaltene Farbstoff färbt     Acetatseide    im       Seifensuspensionsbad    rubinrot.



  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-oxy-7-chlorotetrahydroquinoline .



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



  <I> Example: </I> A diazo solution, which was prepared from 13.8 parts of 4-nitro-l-aminobenzene, is poured into a cold solution of 21.9 parts of 1-isobutyl-3-oxy- 7-methyltetrahydroquinoline in 20 parts of hydrochloric acid 213 B6 and 800 parts of water and is blunted to complete the coupling with sodium acetate. The dye obtained dyes acetate silk ruby red in a soap suspension bath.

Claims (1)

PATENTANSPRUCH: Verfahren; zur Herstellung eines unlös lichen Azofarbstoffes, dadurch gekennzeich net, dass man 4-Nitro-l-aminobenzol diazotiert und die Diazoverbindung mit 1-Isobutyl-3- oxy-7-methyltetrahydrochinolin kuppelt. Der erhaltene Farbstoff färbt Acetatseide im Seifensuspensionsbad rubinrot. PATENT CLAIM: Process; for the production of an insoluble azo dye, characterized in that 4-nitro-1-aminobenzene is diazotized and the diazo compound is coupled with 1-isobutyl-3-oxy-7-methyltetrahydroquinoline. The dye obtained dyes acetate silk ruby red in a soap suspension bath.
CH189799D 1934-08-11 1935-05-07 Process for the preparation of an insoluble azo dye. CH189799A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE189799X 1934-08-11
CH185944T 1935-05-07

Publications (1)

Publication Number Publication Date
CH189799A true CH189799A (en) 1937-03-15

Family

ID=25721296

Family Applications (1)

Application Number Title Priority Date Filing Date
CH189799D CH189799A (en) 1934-08-11 1935-05-07 Process for the preparation of an insoluble azo dye.

Country Status (1)

Country Link
CH (1) CH189799A (en)

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