CH188773A - Process for the preparation of an insoluble azo dye. - Google Patents

Process for the preparation of an insoluble azo dye.

Info

Publication number
CH188773A
CH188773A CH188773DA CH188773A CH 188773 A CH188773 A CH 188773A CH 188773D A CH188773D A CH 188773DA CH 188773 A CH188773 A CH 188773A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
insoluble azo
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 CH188773A publication Critical patent/CH188773A/en

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

Description

  

  Verfahren zur Herstellung eines unlöslichen     .A        zofarbstoifes.       Gemäss dem im Hauptpatent beschriebe  neu 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-2-chlor-l-amino-          benzol        diazotiert    und die     Diazoverbindung     mit     1-Benzyl-3-oxy-tetrahydrochinolin    kup  pelt.  



  <I>Beispiel:</I>  17,3 Teile     4-Nitro-2-chlor-l-aminobenzol     werden in der üblichen Weise     diazotiert.    Die       Diazoverbindung    lässt man in eine eisgekühlte    Lösung von 23,9 Teilen     1-Benzyl-3-oxy-tetra-          hydrochinolin    in der entsprechenden Menge  verdünnter Salzsäure     einlaufen    und stumpft  zur     Beendigung    der Kupplung mit Natrium  acetat ab. Der erhaltene Farbstoff -färbt       Acetatseide    im     Seifensuspensionsbad        bordo.  



  Process for the preparation of an insoluble .A zofarbstoifes. According to the new 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 with similar properties is obtained if 4-nitro-2-chloro-1-aminobenzene is diazotized and the diazo compound is coupled with 1-benzyl-3-oxy-tetrahydroquinoline.



  <I> Example: </I> 17.3 parts of 4-nitro-2-chloro-1-aminobenzene are diazotized in the usual way. The diazo compound is allowed to run into an ice-cold solution of 23.9 parts of 1-benzyl-3-oxy-tetrahydroquinoline in the appropriate amount of dilute hydrochloric acid and blunted with sodium acetate to complete the coupling. The dye obtained dyes acetate silk in a bordo soap suspension bath.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines unlös lichen Azofarbstoffes, dadurch gekennzeich net, dass man 4-Nitro-2-chlor-l-aminobenzol diazotiert und die Diazoverbindung mit 1- Benzyl-3-oxy-tetrahydrochinolin kuppelt. Der erhaltene Farbstoff färbt Acetatseide bordo. PATENT CLAIM: Process for the production of an insoluble azo dye, characterized in that 4-nitro-2-chloro-1-aminobenzene is diazotized and the diazo compound is coupled with 1-benzyl-3-oxy-tetrahydroquinoline. The dye obtained dyes acetate silk bordo.
CH188773D 1934-08-11 1935-05-07 Process for the preparation of an insoluble azo dye. CH188773A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE188773X 1934-08-11
CH185944T 1935-05-07

Publications (1)

Publication Number Publication Date
CH188773A true CH188773A (en) 1937-01-15

Family

ID=25721288

Family Applications (1)

Application Number Title Priority Date Filing Date
CH188773D CH188773A (en) 1934-08-11 1935-05-07 Process for the preparation of an insoluble azo dye.

Country Status (1)

Country Link
CH (1) CH188773A (en)

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