CH188778A - Process for the preparation of an insoluble azo dye. - Google Patents

Process for the preparation of an insoluble azo dye.

Info

Publication number
CH188778A
CH188778A CH188778DA CH188778A CH 188778 A CH188778 A CH 188778A CH 188778D A CH188778D A CH 188778DA CH 188778 A CH188778 A CH 188778A
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 CH188778A publication Critical patent/CH188778A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3617—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a six-membered heterocyclic with only one nitrogen as heteroatom
    • C09B29/3643—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a six-membered heterocyclic with only one nitrogen as heteroatom from quinolines or hydrogenated quinolines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 185944.    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     6-Brom-2.        4-dinitro-l-          aminobenzol        diazotiert    und die     Diazoverbin-          dung    mit     1-n-Butyl-3-methoxy-7-methyl-          tetrahydrochinolin    kuppelt.

      <I>Beispiel:</I>    26,2 Teile     6-Brom-2        .4-dinitro-l-amino-          benzol    werden in der üblichen     Weise        diazo-          tiert.    Die     Diazoverbindung    lässt man in eine  eisgekühlte Lösung von 24,6 Teilen 1-n-         Butyl-    3     -methoxy-    7-     methyl    -     tetrahydrochino-          lin    in der entsprechenden Menge     verdünnter     Salzsäure einlaufen und stumpft zur Been  digung der Kupplung mit     Natriumacetat    ab.

    Der erhaltene Farbstoff färbt     Acetatseide    im       Seifensuspensionsbad    rötlich blau.



      Additional patent to main patent no. 185944. Process for the production 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 6-bromo-2. 4-dinitro-l-aminobenzene is diazotized and the diazo compound is coupled with 1-n-butyl-3-methoxy-7-methyl-tetrahydroquinoline.

      <I> Example: </I> 26.2 parts of 6-bromo-2 .4-dinitro-1-aminobenzene are diazotized in the usual way. The diazo compound is allowed to run into an ice-cold solution of 24.6 parts of 1-n-butyl-3-methoxy-7-methyl-tetrahydroquinoline in the appropriate amount of dilute hydrochloric acid and blunted with sodium acetate to complete the coupling.

    The dye obtained gives the acetate silk a reddish blue color in the soap suspension bath.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines unlös lichen Azofarbstoffes, dadurch gekennzeich net, dass man 6-Brom-2. 4-dinitro-l-amino- benzol diazotiert und die Diazoverbindung mit 1-n-Butyl-3-methoxy-7-methyl-tetra- hydrochinolin kuppelt. Der erhaltene Farbstoff färbt Acetatseide rötlich blau. PATENT CLAIM: Process for the preparation of an insoluble azo dye, characterized in that 6-bromo-2. 4-dinitro-1-aminobenzene is diazotized and the diazo compound is coupled with 1-n-butyl-3-methoxy-7-methyl-tetrahydroquinoline. The dye obtained gives the acetate silk a reddish blue color.
CH188778D 1935-05-07 1936-03-26 Process for the preparation of an insoluble azo dye. CH188778A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH185944T 1935-05-07
CH188778T 1936-03-26

Publications (1)

Publication Number Publication Date
CH188778A true CH188778A (en) 1937-01-15

Family

ID=25721272

Family Applications (1)

Application Number Title Priority Date Filing Date
CH188778D CH188778A (en) 1935-05-07 1936-03-26 Process for the preparation of an insoluble azo dye.

Country Status (1)

Country Link
CH (1) CH188778A (en)

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