CH217967A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

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Publication number
CH217967A
CH217967A CH217967DA CH217967A CH 217967 A CH217967 A CH 217967A CH 217967D A CH217967D A CH 217967DA CH 217967 A CH217967 A CH 217967A
Authority
CH
Switzerland
Prior art keywords
amino
mole
dye
weight
parts
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 CH217967A publication Critical patent/CH217967A/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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 215147.    Verfahren zur Herstellung eines     Polyazofarbstoffes.       Es wurde befunden, dass man einen  neuen     Polyazofarbstoff    erhalten kann, wenn  man auf 1     Mol        Cyanurchlorid    1     Mol    des       Monoazofarbstoffes,    der erhalten wird durch  Reduzieren der Nitrogruppe zur     Aminogruppe     in dem Produkt,

   das selbst erhalten wird  durch Einwirkenlassen von     4-Nitrobenzoyl-          cshlorid    auf den     Monoazofarbstoff    aus     diazo-          tierter        5-Amino-2-oxy-l-carboxybenzol-3-sul-          fonsäure    und     1-Methyl-4-methoxy-3-amino-          benzol,    1     Mol        4-Amino-4'-oxyazo-2-methyl-          benzol-3'-carbonsäure    und 1     Mol    Anilin ein  wirken lässt.

   Der neue     Polyazofarbstoff    färbt  Baumwolle in schwach     alkalischem    Bade bei  Gegenwart von Kupfersulfat und weinsaurem  Natrium in waschechten gelben Tönen an.  <I>Beispiel:</I>  38,6 Gewichtsteile des     Monoazofarbstoffes     aus     diazotierter        5-Amino-2-oxy-l-carboxy-          benzol    - 3 -     sulfonsäure    und 1 -     Methyl    -     4-          methoxy-3-aminobenzol    werden als Natrium  salz in 500 Gewichtsteilen Wasser unter Zu-         satz    von 13,

  5     Gewichtsteilen        Natriumacetat     gelöst. Diese Lösung wird bei     etwa   <B>60'</B> mit  18,5 Gewichtsteilen     4-Nitrobenzoylchlorid,     die mit 5 Gewichtsteilen Aceton versetzt  wurden, behandelt.

   Man reduziert das     Nitro-          benzoylprodukt    mit 42 Gewichtsteilen kri  stallisiertem     Natriumsulfid,    die in 75 Ge  wichtsteilen Wasser gelöst wurden, bei 65 bis  70   zum     Aminobenzoylprodukt.    50 Gewichts  teile des abgeschiedenen     Reduktionsproduktes     werden als neutrale Lösung in 1500 Ge  wichtsteilen Wasser zu einer     Anschlämmung     von 18,4 Gewichtsteilen     Cyanurchlorid    in  500 Gewichtsteilen kaltem Wasser gegeben.  Die bei der Kondensation entstehende Salz  säure wird durch die entsprechende Menge       Natriumearbonat    neutralisiert.

   Hernach wer  den 27,8 Gewichtsteile     4-amino-4'-oxyazo-2-          methylbenzol-3'-carbonsaures    Natrium, das in  Wasser gelöst wurde, zugefügt     und    die Tem  peratur auf 40<B>'</B>erhöht. Nach 2 Stunden gibt  man 9,3 Gewichtsteile Anilin zu und hält die  Temperatur während der gleichen Zeit auf      80  . Das tertiäre Kondensationsprodukt ist  nach dieser Zeit gebildet. Es wird mit Na  triumchlorid abgeschieden und getrocknet.



      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 by adding, for 1 mole of cyanuric chloride, 1 mole of the monoazo dye obtained by reducing the nitro group to the amino group in the product,

   this itself is obtained by allowing 4-nitrobenzoyl chloride to act on the monoazo dye from diazo-tated 5-amino-2-oxy-1-carboxybenzene-3-sulphonic acid and 1-methyl-4-methoxy-3-aminobenzene , 1 mole of 4-amino-4'-oxyazo-2-methyl-benzene-3'-carboxylic acid and 1 mole of aniline can act.

   The new polyazo dye dyes cotton in a weakly alkaline bath in the presence of copper sulfate and tartrate of sodium in washfast yellow shades. <I> Example: </I> 38.6 parts by weight of the monoazo dye from diazotized 5-amino-2-oxy-1-carboxy-benzene - 3 - sulfonic acid and 1 - methyl - 4-methoxy-3-aminobenzene are salted as sodium in 500 parts by weight of water with the addition of 13,

  5 parts by weight of sodium acetate dissolved. This solution is treated at about <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 75 parts by weight of water, at 65 to 70 to the aminobenzoyl product. 50 parts by weight of the deposited reduction product are added as a neutral solution in 1500 parts by weight of water Ge to a slurry of 18.4 parts by weight of cyanuric chloride in 500 parts by weight of cold water. The hydrochloric acid formed during the condensation is neutralized by the appropriate amount of sodium carbonate.

   Thereafter, the 27.8 parts by weight of 4-amino-4'-oxyazo-2-methylbenzene-3'-carboxylic acid sodium, which was dissolved in water, was added and the temperature was increased to 40 '. After 2 hours, 9.3 parts by weight of aniline are added and the temperature is maintained at 80 for the same time. The tertiary condensation product is formed after this time. It is precipitated with sodium chloride and dried.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Polyazofarbstoffes, dadurch gekennzeichnet, dass man auf 1 Mol Cyanurchlorid 1 Mol des Monoazofarbstoffes, der erhalten wird durch Reduzieren der Nitrogruppe zur Aminogruppe in dem 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, is added to 1 mole of cyanuric chloride, das selbst erhalten wird durch Einu irkenlassen von 4-Nitrobenzoyl- Chlorid auf den Monoazofarbstoff aus diazo- tierter 5-Amino-2-oxy-l-earboxybenzol-3-sul- fonsäure und 1-Methyl-4-methoxy-3-amino- benzol, which itself is obtained by allowing 4-nitrobenzoyl chloride to penetrate the monoazo dye from diazoated 5-amino-2-oxy-1-earboxybenzene-3-sulphonic acid and 1-methyl-4-methoxy-3-amino benzene, 1 Mol 4-Amino-4'-oxyazo-2-methyl- benzol-3'-carbonsäure und 1 Mol Anilin ein wirken lässt. Der neue Polyazofarbstoff färbt Baumwolle in schwach alkalischem Bade bei Gegenwart. von Kupfersulfat und weinsaurem Natrium in waschechten gelben Tönen an. 1 mole of 4-amino-4'-oxyazo-2-methyl-benzene-3'-carboxylic acid and 1 mole of aniline can act. The new polyazo dye dyes cotton in a weakly alkaline bath when present. of copper sulfate and tartrate of sodium in washfast yellow tones.
CH217967D 1939-07-12 1939-07-12 Process for the preparation of a polyazo dye. CH217967A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH215147T 1939-07-12
CH217967T 1939-07-12

Publications (1)

Publication Number Publication Date
CH217967A true CH217967A (en) 1941-11-15

Family

ID=25725690

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217967D CH217967A (en) 1939-07-12 1939-07-12 Process for the preparation of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH217967A (en)

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