CH340295A - Process for the preparation of a polyazo dye - Google Patents

Process for the preparation of a polyazo dye

Info

Publication number
CH340295A
CH340295A CH340295DA CH340295A CH 340295 A CH340295 A CH 340295A CH 340295D A CH340295D A CH 340295DA CH 340295 A CH340295 A CH 340295A
Authority
CH
Switzerland
Prior art keywords
polyazo dye
parts
copper
mol
hand
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 CH340295A publication Critical patent/CH340295A/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)
  • 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    der     Kupferkomplexverbindung    aus dem       Monoazokörper    der Zusammensetzung  
EMI0001.0011     
    und anderseits mit 1     Mol        1-Phenyl-3-methyl-5-          pyrazolon    kuppelt und den erhaltenen     Polyazofarb-          stoff    unter Aufspaltung der     Methoxygruppen    mit  einem kupferabgebenden Mittel behandelt.  



  Der neue, kupferhaltige     Polyazofarbstoff    ist eine    dunkle, wasserlösliche Substanz, die Fasern aus  Baumwolle und aus regenerierter     Cellulose    in sehr  echten,     rotstichig    grauen 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 in 350 Teilen Wasser und 56 Teilen       301/oiger        Salzsäure    bei 0  mit 13,8 Teilen Natrium-         nitrit        tetrazotiert.    Die     Tetrazoverbindung    wird bei  5  mit einer Lösung von 84 Teilen der kupferhalti  gen     Monoazoverbindung    der Zusammensetzung  
EMI0001.0029     
    und 22 Teilen     3011/oiger    Natronlauge in 600 Teilen  Wasser versetzt.

   Nach Zugabe einer konzentrierten  wässerigen Lösung von 50 Teilen     kalzinierter    Soda  zur Reaktionslösung fällt daraus die Zwischenverbin  dung aus. Ohne diese zu isolieren, wird hierauf der    Reaktionslösung bei einer Temperatur von 5  eine  Lösung von 20 Teilen     1-Phenyl-3-methyl-5-pyr-          azolon    in 16 Teilen 30     o/oiger    Natronlauge und 250  Teilen Wasser zugegeben.

   Sobald die Kupplung zum       Polyazofarbstoff    beendet ist, wird die Reaktions-      Lösung mit 80 Teilen     Diäthanolamin,    50 Teilen  Kupfervitriol und 100 Teilen einer 25     o/oigen        Ammo-          niaklösung    versetzt und der     Polyazofarbstoff    wäh  rend einiger Stunden bei 95  behandelt. Durch Aus  sahen wird der kupferhaltige     Polyazofarbstoff    iso  liert. Er stellt eine dunkle, wasserlösliche Substanz  dar, die Fasern aus Baumwolle und regenerierter       Cellulose    in sehr echten,     rotstichig    grauen Tönen  färbt.



  Additional patent to main patent No. 292412 Process for the production of a polyazo dye The present patent relates to a process for the production of a polyazo dye, which consists in adding 1 mol of tetrazotized 3,3'-dimethoxy-4,4'-diamino-1

  1'-diphenyl on the one hand with 1 mol of the copper complex compound from the monoazo body of the composition
EMI0001.0011
    and on the other hand coupling it with 1 mole of 1-phenyl-3-methyl-5-pyrazolone and treating the resulting polyazo dye with a copper-releasing agent with splitting of the methoxy groups.



  The new, copper-containing polyazo dye is a dark, water-soluble substance that dyes fibers made of cotton and regenerated cellulose in very genuine, reddish 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 in 350 parts of water and 56 parts of 301% hydrochloric acid at 0 with 13 , 8 parts of sodium nitrite tetrazotized. The tetrazo compound is at 5 with a solution of 84 parts of the copper-containing monoazo compound of the composition
EMI0001.0029
    and 22 parts of 3011% sodium hydroxide solution in 600 parts of water.

   After adding a concentrated aqueous solution of 50 parts of calcined soda to the reaction solution, the intermediate compound precipitates therefrom. Without isolating this, a solution of 20 parts of 1-phenyl-3-methyl-5-pyrazolone in 16 parts of 30% sodium hydroxide solution and 250 parts of water is then added to the reaction solution at a temperature of 5.

   As soon as the coupling to the polyazo dye is complete, 80 parts of diethanolamine, 50 parts of vitriol and 100 parts of a 25% ammonia solution are added to the reaction solution, and the polyazo dye is treated at 95 for a few hours. By looking, the copper-containing polyazo dye is isolated. It is a dark, water-soluble substance that dyes fibers made of cotton and regenerated cellulose in very genuine, reddish 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, 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'-di- phenyl einerseits mit 1 Mol der Kupferkomplex verbindung aus dem Monoazokörper der Zusammen setzung EMI0002.0017 und anderseits mit 1 Mol 1-Phenyl-3-methyl-5-pyr- azolon kuppelt und den erhaltenen Polyazofarbstoff unter Aufspaltung der Methoxygruppen mit einem kupferabgebenden Mittel behandelt. 1'-diphenyl on the one hand with 1 mol of the copper complex compound from the monoazo body of the composition EMI0002.0017 and on the other hand with 1 mole of 1-phenyl-3-methyl-5-pyr-azolone and the resulting polyazo dye is treated with a copper donor with splitting of the methoxy groups. Der neue, kupferhaltige Polyazofarbstoff ist eine dunkle, wasserlösliche Substanz, die Fasern aus Baumwolle und aus regenerierter Cellulose in sehr echten, rotstichig grauen Tönen färbt. The new, copper-containing polyazo dye is a dark, water-soluble substance that dyes fibers made of cotton and regenerated cellulose in very genuine, reddish gray tones.
CH340295D 1951-01-19 1956-02-15 Process for the preparation of a polyazo dye CH340295A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH292412T 1951-01-19
CH340295T 1956-02-15

Publications (1)

Publication Number Publication Date
CH340295A true CH340295A (en) 1959-08-15

Family

ID=25733242

Family Applications (1)

Application Number Title Priority Date Filing Date
CH340295D CH340295A (en) 1951-01-19 1956-02-15 Process for the preparation of a polyazo dye

Country Status (1)

Country Link
CH (1) CH340295A (en)

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