CH187920A - 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
CH187920A
CH187920A CH187920DA CH187920A CH 187920 A CH187920 A CH 187920A CH 187920D A CH187920D A CH 187920DA CH 187920 A CH187920 A CH 187920A
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 CH187920A publication Critical patent/CH187920A/en

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Description

  

  Verfahren zur Herstellung eines unlöslichen     AzofarbstofPes.       Gemäss dem im Hauptpatent beschriebe  nen Verfahren erhält man einen     Acetatseide     in blaustichig roten Tönen anfärbenden un  löslichen     Azofarbstoff,        wenn    man     4-Nitro-          1-aminobenzol        diazotiert    und die     Diazover-          bindung    mit     1-Butyl-3-oxy-7-chlortetrahydro-          chinolin    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen Farbstoff von ähnlichen Eigen  schaften, wenn man     6-Chlor-2"4-dinitro-l-          aminobenzol        diazotiert    und die     Diazover-          bindung    mit     1-Benzyl-3-oxy-7-methyl-tetra-          hydrochinolin    kuppelt.  



  <I>Beispiel:</I>  Eine aus 24 Teilen     6-Chlor-2,4-dinitro-          1-aminobenzol    hergestellte     Diazolösung    kup-         pelt    man mit einer Lösung von 27 Teilen       1-Benzyl-    3     -oxy-7-methyl-tetrahydrochinolin.     Der anfallende Farbstoff färbt     Acetatseide          blauviolett    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-1-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 6-chloro-2 "4-dinitro-l-aminobenzene is diazotized and the diazo compound with 1-benzyl-3-oxy-7-methyl-tetra - hydroquinoline couples.



  <I> Example: </I> A diazo solution prepared from 24 parts of 6-chloro-2,4-dinitro-1-aminobenzene is coupled with a solution of 27 parts of 1-benzyl-3 -oxy-7-methyl- tetrahydroquinoline. The resulting dye stains acetate silk blue-violet.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines unlös- liehen Azofarbstoffes, dadurch gekennzeich net, daB man 6-Chlor-2,4-dinitro-l-amino- benzol diazotiert und die Diäzoverbindung mit 1-Benzy 1-3-oxy-7-methyl-tetrahydrochi- nolin kuppelt. Der erhaltene Farbstoff färbt Acetatseide in blauvioletten Tönen an. PATENT CLAIM: Process for the production of an insoluble azo dye, characterized in that 6-chloro-2,4-dinitro-1-aminobenzene is diazotized and the diazo compound is treated with 1-benzy 1-3-oxy-7-methyl- tetrahydroquinoline couples. The dye obtained stains acetate silk in blue-violet shades.
CH187920D 1934-08-11 1935-05-07 Process for the preparation of an insoluble azo dye. CH187920A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE187920X 1934-08-11
CH185944T 1935-05-07

Publications (1)

Publication Number Publication Date
CH187920A true CH187920A (en) 1936-11-30

Family

ID=25721281

Family Applications (1)

Application Number Title Priority Date Filing Date
CH187920D CH187920A (en) 1934-08-11 1935-05-07 Process for the preparation of an insoluble azo dye.

Country Status (1)

Country Link
CH (1) CH187920A (en)

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