CH340294A - Process for the preparation of a polyazo dye - Google Patents

Process for the preparation of a polyazo dye

Info

Publication number
CH340294A
CH340294A CH340294DA CH340294A CH 340294 A CH340294 A CH 340294A CH 340294D A CH340294D A CH 340294DA CH 340294 A CH340294 A CH 340294A
Authority
CH
Switzerland
Prior art keywords
polyazo dye
parts
mol
copper
water
Prior art date
Application number
Other languages
German (de)
Inventor
Albert Dr Demagistri
Hans Dr Ruckstuhl
Walter Dr Wehrli
Original Assignee
Sandoz 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 Sandoz Ag filed Critical Sandoz Ag
Publication of CH340294A publication Critical patent/CH340294A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00Complex metal compounds of azo dyes
    • C09B45/48Preparation from other complex metal compounds of azo dyes

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent Nr. 292412    Verfahren zur     Herstellung    eines     Polyazofarbstoffes       Gegenstand des vorliegenden Patentes ist ein  Verfahren zur Herstellung eines     Polyazofarbstoffes,     welches darin besteht, dass man 1     Mol        tetrazotiertes          3,3'-Dimethoxy-4,4'-diamino-1,1'-diphenyl    einerseits  mit 1     Mol        2-Oxynaphthalin-3,

  6-disulfonsäure    und  anderseits mit 1     Mol    der     Kupferkomplexverbindung     aus dem     Monoazokörper    der Zusammensetzung  
EMI0001.0012     
    kuppelt und den erhaltenen     Polyazofarbstoff    unter  Aufspaltung der     Methoxygruppen    mit kupferabge  benden Mitteln behandelt.  



  Der neue, kupferhaltige     Polyazofarbstoff    ist eine  dunkle, wasserlösliche Substanz, welche Baumwolle  und Fasern aus regenerierter     Cellulose    in echten  blaugrauen Tönen färbt.  



  Im nachfolgenden Beispiel bedeuten die Teile  Gewichtsteile und die Prozente Gewichtsprozente.  <I>Beispiel</I>  24,4 Teile     3,3'-Dimethoxy-4,4'-diamino-1,1'-di-          phenyl    werden bei     0     in 350 Teilen Wasser und 56  Teilen konzentrierter     Salzsäure    mit einer konzen  trierten Lösung von 13,8 Teilen     Natriumnitrit        tetra-          zotiert.    Die     Tetrazoverbindung    wird bei 5  mit einer  Lösung von 31,9 Teilen     2-Oxynaphthalin-3,6-disul-          fonsäure    in 200 Teilen Wasser versetzt.

       Hierauf    gibt  man zur Reaktionslösung noch 42 Teile     kalzinierte     Soda als konzentrierte Lösung zu, wodurch die         Zwischenverbindung    ausfällt. Ohne diese zu isolie  ren, werden der     Reaktionslösung    74 Teile der  kupferhaltigen     Monoazoverbindung    der Zusammen  setzung  HO  
EMI0001.0032     
         in        _        600        Teilen        Wasser        und        24        Teilen        30        %iger     <RTI  

   ID="0001.0043">   Na-          tronlauge    zugegeben und anschliessend 150 Teile  eines technischen     Pyridinbasengemisches.    Wenn die  Kupplung beendet ist, wird der     Polyazofarbstoff     durch Aussahen isoliert.  



  Zur     entmethylierenden        Kupferung    wird der     Poly-          azofarbstoff    in 3000 Teilen Wasser und 100 Teilen       Diäthanolamin    bei einer Temperatur von 95  so  lange mit einer     ammoniakalischen    Lösung von 50  Teilen Kupfersulfat behandelt, bis die     Entmethylie-          rung    und die     Kupferung    beendet sind.

   Hierauf     wird     der kupferhaltige     Polyazofarbstoff    durch     Aussalzen          isoliert.    Er stellt eine dunkle, wasserlösliche Sub  stanz dar, welche Baumwolle und regenerierte     Cellu-          lose    in echten, blaugrauen Tönen färbt.



  Additional patent to the main patent No. 292412 Process for the production of a polyazo dye The subject of the present patent is a process for the production of a polyazo dye, which consists in that 1 mol of tetrazotized 3,3'-dimethoxy-4,4'-diamino-1,1 ' -diphenyl on the one hand with 1 mol of 2-oxynaphthalene-3,

  6-disulfonic acid and on the other hand with 1 mole of the copper complex compound from the monoazo body of the composition
EMI0001.0012
    couples and treated the polyazo dye obtained with splitting of the methoxy groups with kupferabge bende agents.



  The new, copper-containing polyazo dye is a dark, water-soluble substance that dyes cotton and fibers made from regenerated cellulose in real blue-gray tones.



  In the following example, the parts are parts by weight and the percentages are percentages by weight. <I> Example </I> 24.4 parts of 3,3'-dimethoxy-4,4'-diamino-1,1'-diphenyl are concentrated at 0 in 350 parts of water and 56 parts of concentrated hydrochloric acid with a concentrated Solution of 13.8 parts of sodium nitrite tetrasotized. The tetrazo compound is mixed with a solution of 31.9 parts of 2-oxynaphthalene-3,6-disulphonic acid in 200 parts of water at 5.

       42 parts of calcined soda are then added as a concentrated solution to the reaction solution, whereby the intermediate compound precipitates. Without isolating these, 74 parts of the copper-containing monoazo compound with the composition HO are added to the reaction solution
EMI0001.0032
         in 600 parts of water and 24 parts of 30% strength <RTI

   ID = "0001.0043"> Sodium hydroxide solution was added and then 150 parts of a technical pyridine base mixture. When the coupling is complete the polyazo dye is isolated by appearance.



  For demethylating coppering, the polyazo dye is treated in 3000 parts of water and 100 parts of diethanolamine at a temperature of 95 with an ammoniacal solution of 50 parts of copper sulfate until demethylation and coppering have ended.

   The copper-containing polyazo dye is then isolated by salting out. It is a dark, water-soluble substance that dyes cotton and regenerated cellulose in real, blue-gray tones.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines Polyazofarb- stoffes, dadurch gekennzeichnet, dass man 1 Mol tetrazotiertes 3,3'-Dimethoxy-4,4'-diamino-1,1'-di- phenyl einerseits mit 1 Mol 2-Oxynaphthalin-3, PATENT CLAIM Process for the production of a polyazo dye, characterized in that 1 mol of tetrazotized 3,3'-dimethoxy-4,4'-diamino-1,1'-diphenyl is mixed with 1 mol of 2-oxynaphthalene-3, 6-di- sulfonsäure und anderseits mit 1 Mol der Kupfer komplexverbindung aus dem Monoazokörper der Zusammensetzung EMI0002.0001 kuppelt und den erhaltenen Polyazofarbstoff unter Aufspaltung der Methoxygrüppen mit kupferabge benden Mitteln behandelt. Der neue, kupferhaltige Polyazofarbstoff ist eine dunkle, wasserlösliche Substanz, welche Baumwolle und Fasern aus regenerierter Cellulose in echten blaugrauen Tönen färbt. UNTERANSPRÜCHE 1. Verfahren nach Patentanspruch, dadurch ge kennzeichnet, dass die zweite Kupplung in Gegen wart einer organischen tertiären Base ausgeführt wird. 2. 6-disulfonic acid and on the other hand with 1 mol of the copper complex compound from the monoazo body of the composition EMI0002.0001 couples and treated the polyazo dye obtained with splitting of the methoxy groups with kupferabge benden agents. The new, copper-containing polyazo dye is a dark, water-soluble substance that dyes cotton and fibers made from regenerated cellulose in real blue-gray tones. SUBClaims 1. The method according to claim, characterized in that the second coupling is carried out in the presence of an organic tertiary base. 2. Verfahren nach Patentanspruch und Unter anspruch 1, dadurch gekennzeichnet, dass man als organische tertiäre Base Pyridin wählt. Process according to patent claim and sub-claim 1, characterized in that pyridine is chosen as the organic tertiary base.
CH340294D 1951-01-19 1956-02-15 Process for the preparation of a polyazo dye CH340294A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH292412T 1951-01-19
CH340294T 1956-02-15

Publications (1)

Publication Number Publication Date
CH340294A true CH340294A (en) 1959-08-15

Family

ID=25733241

Family Applications (1)

Application Number Title Priority Date Filing Date
CH340294D CH340294A (en) 1951-01-19 1956-02-15 Process for the preparation of a polyazo dye

Country Status (1)

Country Link
CH (1) CH340294A (en)

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