CH232499A - Process for the preparation of a metal-containing stilbene azo dye. - Google Patents

Process for the preparation of a metal-containing stilbene azo dye.

Info

Publication number
CH232499A
CH232499A CH232499DA CH232499A CH 232499 A CH232499 A CH 232499A CH 232499D A CH232499D A CH 232499DA CH 232499 A CH232499 A CH 232499A
Authority
CH
Switzerland
Prior art keywords
dye
metal
preparation
azo dye
parts
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH232499A publication Critical patent/CH232499A/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
    • C09B56/00—Azo dyes containing other chromophoric systems
    • C09B56/04—Stilbene-azo dyes

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent Nr. 217234.    Verfahren zur Herstellung eines metallhaltigen     StilbenaZOfarbstoffes.       Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur Herstellung     eines     metallhaltigen     Stilbenazofarbstoffes,    welches  dadurch gekennzeichnet     ist,    dass man den  Farbstoff     4-Chlor-2-amino-l-oxybenzol   
EMI0001.0006  
         m-Anisidin    und den Farbstoff     Sulfanilsäure     .

       p-Xylidin    mit     4,4'-Dinitrostilben-2,2'-                    disulfonsäure    kondensiert und das Konden  sationsprodukt in die     Kupferkomplexverbin-          dung    überführt.  



  <I>Beispiel:</I>  28     Teile    des Farbstoffes     4-Chlor-2-amino-          1-oxybenzol        m-Anisidin    und 32     Teile     
EMI0001.0020  
    des Farbstoffes     Sulfanilsäure   
EMI0001.0022  
       p-Xyli-          din    werden 15 bis 18 Stunden in der Siede  hitze mit 43 Teilen     4,4'-Dinitrostüben-2,2'-          disulfonsäure    in 400 Teilen Wasser und 80  Teilen Natronlauge 36      B6    kondensiert. Nach  dem Abkühlen wird bei ca. 30  mit Salz  säure neutralisiert, das Kondensationsprodukt  vollends mit Kochsalz ausgefällt und filtriert.  



  Die     Kupferverbindung    .des Farbstoffes  wird<B>zum</B> Beispiel erhalten, indem man den  obigen Farbstoff     in    2000 Teilen Wasser und  15 Teilen     Ammoniak    25%ig löst, bei 80 bis  90  eine Lösung von 25     Teilen        krist.    Kupfer-         sulfat    in 100 Teilen Wasser und 50 Teilen  25%igem Ammoniak zufliessen lässt und 12       Stunden    auf 90 bis 95  erhitzt. Die metalli  sierte Verbindung wird in üblicher Weise  durch     Aussalzen        isoliert    und     filtriert.     



  Die getrocknete     Kupferkomplexverbin-          dung    stellt ein dunkles Pulver dar, sie löst  sich in Wasser mit     brauner,    in     konz.    Schwe  felsäure mit grünblauer Farbe und färbt  Baumwolle     in    lichtechten braunen Tönen.



  Additional patent to main patent No. 217234. Process for the production of a metal-containing stilbenaZO dye. The subject of the present additional patent is a process for the preparation of a metal-containing stilbene azo dye, which is characterized in that the dye 4-chloro-2-amino-1-oxybenzene is used
EMI0001.0006
         m-anisidine and the dye sulfanilic acid.

       p-xylidine is condensed with 4,4'-dinitrostilbene-2,2'-disulfonic acid and the condensation product is converted into the copper complex compound.



  <I> Example: </I> 28 parts of the dye 4-chloro-2-amino-1-oxybenzene m-anisidine and 32 parts
EMI0001.0020
    of the dye sulfanilic acid
EMI0001.0022
       p-Xylidine is condensed for 15 to 18 hours at the boiling point with 43 parts of 4,4'-dinitrostebet-2,2'-disulfonic acid in 400 parts of water and 80 parts of sodium hydroxide solution 36 B6. After cooling, the mixture is neutralized with hydrochloric acid at about 30, the condensation product is completely precipitated with common salt and filtered.



  The copper compound of the dye is obtained for example by dissolving the above dye in 2000 parts of water and 15 parts of 25% ammonia, at 80 to 90 a solution of 25 parts of crystalline. Allow copper sulfate to flow in 100 parts of water and 50 parts of 25% ammonia and heat to 90 to 95 for 12 hours. The metallized compound is isolated in the usual manner by salting out and filtered.



  The dried copper complex compound is a dark powder, it dissolves in water with a brown, in conc. Sulfur acid with a green-blue color and dyes cotton in lightfast brown tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines metall haltigen Stilbenazofarbstoffes, dadurch ge kennzeichnet, dass man den Farbstoff 4-Chlor- 2-amino-l-oxybenzol m-Anisidin und EMI0001.0048 den Farbstoff Sulfanilsäure p-Xylidin EMI0001.0051 mit 4,4'-Dinitrostilben-2,2'-disulfonsäure kon densiert und das Kondensationsprodukt in die Kupferkomplexverbindung überführt. PATENT CLAIM: Process for the production of a metal-containing stilbene azo dye, characterized in that the dye 4-chloro-2-amino-l-oxybenzene and m-anisidine EMI0001.0048 the dye sulfanilic acid p-xylidine EMI0001.0051 condensed with 4,4'-dinitrostilbene-2,2'-disulfonic acid and converted the condensation product into the copper complex compound. Der neue Farbstoff stellt ein dunkles Pulver dar, er löst sich in Wasser mit brau ner, in konz. Schwefelsäure mit grünblauer Farbe und färbt Baumwolle in lichtechtem braunen Tönen. The new dye is a dark powder, it dissolves in water with brau ner, in conc. Sulfuric acid with green-blue color and dyes cotton in lightfast brown tones.
CH232499D 1940-11-20 1940-11-20 Process for the preparation of a metal-containing stilbene azo dye. CH232499A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH217234T 1940-11-20
CH232499T 1940-11-20

Publications (1)

Publication Number Publication Date
CH232499A true CH232499A (en) 1944-05-31

Family

ID=25725965

Family Applications (1)

Application Number Title Priority Date Filing Date
CH232499D CH232499A (en) 1940-11-20 1940-11-20 Process for the preparation of a metal-containing stilbene azo dye.

Country Status (1)

Country Link
CH (1) CH232499A (en)

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