CH217966A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

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Publication number
CH217966A
CH217966A CH217966DA CH217966A CH 217966 A CH217966 A CH 217966A CH 217966D A CH217966D A CH 217966DA CH 217966 A CH217966 A CH 217966A
Authority
CH
Switzerland
Prior art keywords
dye
weight
parts
diazotized
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH217966A publication Critical patent/CH217966A/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
    • C09B43/00Preparation of azo dyes from other azo compounds
    • C09B43/12Preparation of azo dyes from other azo compounds by acylation of amino groups
    • C09B43/136Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
    • C09B43/16Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents linking amino-azo or cyanuric acid residues

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

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr. 215147.         Verfahren    zur Herstellung eines     Polyazofarbstoffes.       Es wurde gefunden,     dass    man einen neuen       Polyazofarbstoff    erhalten kann, wenn man  auf 1     Mol        Cyanurchlorid    1     Mol    des     Mono-          azofarbstoffes,    der     erhalten    wird durch Re  duzieren der     Nitrogruppe    zur     Aminogruppe     in dem Produkt, das     ;

  selbst    erhalten wird    durch Einwirkenlassen von     4-Nitrobenzoyl-          ehlarid    auf den     Monoazofarbstoff    aus     diazo-          tierter        5-Amino-2-oxy-l-earboxybenzol-3-sul-          fonsäure    und     1-Methyl-4-methoxy-3-amino-          benzol,    1     Mol    des     Azofarbstoffes    aus     diazo-          tierter        2-Aminobenzol-l-carbonsäure    und dem       Pyrazolon    der Formel .

    
EMI0001.0031     
    und 1     Mol    Anilin     einwirken.    lässt. Der neue       Polyazofarbstoff    färbt Baumwolle     in    schwach  alkalischem Bade bei Gegenwart von Kupfer  sulfat und     weinsaurem    Natrium in wasch  echten, gelben Tönen an.

      <I>Beispiel:</I>  38,1 Gewichtsteile des     Monoazofarbstoffes     aus     diazotierter        5-Amino-2-oxy-l-carboxy-          benzol-3-sulfonsäure    und 1-Methyl-3-amino-         4-methoxybenzol    werden als     Natriumsalz        in     300 Gewichtsteilen Wasser unter Zusatz von  13,5 Gewichtsteilen     Natriumacetat    gelöst.  Diese Lösung     wird    bei<B>60'</B> mit 18,5 Ge  wichtsteilen     4-Nitrobenzoylchlorid,    die mit  5 Gewichtsteilen     Aceton    versetzt wurden,  behandelt.

   Man reduziert das     Nitrobenzoyl-          produkt    mit 42     Gewichtsteilen    kristallisier  tem     Natriumsulfid,    die in 70 Gewichtsteilen  Wasser gelöst wurden bei<B>65-70'</B> zum       Aminobenzoylprodukt.         50     Gewichtsteile    des abgeschiedenen Re  duktionsproduktes     tverden    als neutrale Lö  sung     in.    500     GewiclitsteilenWasser        zii    einer       Anschlämmung    von 1.8,

  4 Gewichtsteilen       Cyanurchlorid    in 500     Gewichtsteilen        kaltem     Wasser gegeben. Die bei der Kondensation    entstehende Salzsäure     wird    durch die ent  sprechende Menge     Natriumcarbonat    neutrali  siert.

   Hernach werden 60 Gewichtsteile des       Monoazofarbstoffes    aus     diazotierter        2-Amino-          benzol-l-carbonsäure    und dem     Pyrazolon    der  Formel  
EMI0002.0017     
    die als     Natriumsalz    in 500     Gewichtsteilen     Wasser gelöst wurden, zum     Monokondensa-          tionsprodukt    gegeben. Die Temperatur wird  dabei auf 40   erhöht. Die     bei    der Konden  sation entstehende Salzsäure wird mit     Na-          triumcarbonat    neutralisiert.

   Nach 2 Stunden  gibt man 9,3 Gewichtsteile Anilin zu und  hält die     Temperatur    während der     bleichen     Zeit auf 80  . Das tertiäre Kondensations  produkt ist nach dieser Zeit gebildet. Es     n,ird     mit     Natriumchlorid    abgeschieden und ge  trocknet. Das Produkt färbt Baumwolle in       schjvach    alkalischem Bade bei     Gegenwart     von     Kupfersulfat    und weinsaurem Natrium  in waschechten, gelben Tönen an.



      Additional patent to main patent No. 215147. Process for the production of a polyazo dye. It has been found that a new polyazo dye can be obtained if, for 1 mole of cyanuric chloride, 1 mole of the monoazo dye which is obtained by reducing the nitro group to the amino group in the product which;

  itself is obtained by allowing 4-nitrobenzoyl chloride to act on the monoazo dye from diazotized 5-amino-2-oxy-1-earboxybenzene-3-sulphonic acid and 1-methyl-4-methoxy-3-aminobenzene, 1 mol of the azo dye from diazo-tated 2-aminobenzene-1-carboxylic acid and the pyrazolone of the formula.

    
EMI0001.0031
    and act 1 mole of aniline. leaves. The new polyazo dye dyes cotton in a weakly alkaline bath in the presence of copper sulfate and tartrate of sodium in real, yellow tones.

      <I> Example: </I> 38.1 parts by weight of the monoazo dye from diazotized 5-amino-2-oxy-1-carboxy-benzene-3-sulfonic acid and 1-methyl-3-amino-4-methoxybenzene are used as the sodium salt in 300 parts by weight of water with the addition of 13.5 parts by weight of sodium acetate dissolved. This solution is treated at <B> 60 '</B> with 18.5 parts by weight of 4-nitrobenzoyl chloride to which 5 parts by weight of acetone have been added.

   The nitrobenzoyl product is reduced with 42 parts by weight of crystallized sodium sulfide, which were dissolved in 70 parts by weight of water at 65-70 'to give the aminobenzoyl product. 50 parts by weight of the separated reduction product are used as a neutral solution in 500 parts by weight of water for a slurry of 1.8,

  4 parts by weight of cyanuric chloride in 500 parts by weight of cold water. The hydrochloric acid formed during the condensation is neutralized with the appropriate amount of sodium carbonate.

   Thereafter, 60 parts by weight of the monoazo dye from diazotized 2-amino-benzene-1-carboxylic acid and the pyrazolone of the formula
EMI0002.0017
    which were dissolved as the sodium salt in 500 parts by weight of water, added to the monocondensation product. The temperature is increased to 40. The hydrochloric acid formed during condensation is neutralized with sodium carbonate.

   After 2 hours, 9.3 parts by weight of aniline are added and the temperature is maintained at 80 during the bleaching time. The tertiary condensation product is formed after this time. It is precipitated with sodium chloride and dried. The product dyes cotton in a schjvach alkaline bath in the presence of copper sulfate and tartrate of sodium in washfast, yellow tones.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Polyazofarbstoffes, dadurch gekennzeichnet, dass man auf 1 Mol Cyariurchlorid 1 Mol des Monoazofarbstoffes, der erhalten wird durch Reduzieren der Nitrogruppe zur Amino- gruppe in deni Produkt, Claim: A process for the preparation of a new polyazo dye, characterized in that 1 mol of the monoazo dye, which is obtained by reducing the nitro group to the amino group in the product, das selbst erhalten wird durch Einwirkenlassen von 4-Nitro- benzoylchlorid auf den Monoazofarbstoff aus diazotierter 5-Amino-2-oxy-l-carboxvbP-nzol- 3-sulfonsäure und 1-Methyl-4-methoxy-3- aminobenzol, which itself is obtained by allowing 4-nitrobenzoyl chloride to act on the monoazo dye from diazotized 5-amino-2-oxy-l-carboxvbP-nzene-3-sulfonic acid and 1-methyl-4-methoxy-3-aminobenzene, 1 Mol des Azofarbstoffes aus diazotierter 2 - Aminobenzol -1- carbonsäure und dem Pyrazolon der Formel EMI0002.0059 und 1 11o1 Anilin einwirken lässt. Der neue 35 Polyazofarbstoff färbt Baumwolle in schwach alkalischem Bade bei Gegenwart von Kupfer- sulfat und weinsaurem Natrium in wasch echten, gelben Tönen an. 1 mol of the azo dye from diazotized 2 - aminobenzene -1-carboxylic acid and the pyrazolone of the formula EMI0002.0059 and let 1 11o1 aniline take effect. The new 35 polyazo dye dyes cotton in a weakly alkaline bath in the presence of copper sulfate and tartrate of sodium in real, yellow shades.
CH217966D 1939-07-12 1940-06-14 Process for the preparation of a polyazo dye. CH217966A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH215147T 1939-07-12
CH217966T 1940-06-14

Publications (1)

Publication Number Publication Date
CH217966A true CH217966A (en) 1941-11-15

Family

ID=25725689

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217966D CH217966A (en) 1939-07-12 1940-06-14 Process for the preparation of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH217966A (en)

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