CH217964A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

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Publication number
CH217964A
CH217964A CH217964DA CH217964A CH 217964 A CH217964 A CH 217964A CH 217964D A CH217964D A CH 217964DA CH 217964 A CH217964 A CH 217964A
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CH
Switzerland
Prior art keywords
amino
weight
parts
carboxylic acid
product
Prior art date
Application number
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German (de)
Inventor
Gesellschaft Fuer Chemis Basel
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Chem Ind Basel
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Application filed by Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH217964A publication Critical patent/CH217964A/en

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    • 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

  

  Verfahren zur Herstellung eines     Polyazofarbstoffes.       Es wurde gefunden, 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-          chlorid    auf das Kupplungsprodukt aus     diazo-          tierter        2-Aminobenzol-l-carbonsäüre    und 1       (4'-Amino)@-phenyl-5-pyrazolon-3-carbon-          säure,    1     Mol    Anilin und 1     Mol    4'-(4"-Amino       benzoylamino)-5'-methoxy-2'-methyl-4-oxy-3-          carboxy-1,1'-azobenzol-5-sulfonsäure,    einwir  ken lässt.

   Der neue     Polyazofarbstoff    färbt  Baumwolle in schwach alkalischem Bade bei  Gegenwart von Kupfersulfat und weinsaurem  Natrium in waschechten gelben Tönen.  



  <I>Beispiel:</I>  <B>36,7</B> Gewichtsteile des     Monoazofarbstoffes     aus     diazotierter        2-Aminobenzol-l-carbonsäure     und 4'-     Aminophenylpyrazolon-3-carbonsäure     werden als     Natriumsalz    in 300 Gewichts-    teilen- Wasser unter Zusatz von 13,5 Ge  wichtsteilen     Natriumacetat    gelöst. Diese Lö  sung wird bei 60       mit    18,5 Gewichtsteilen       4-Nitrobenzoylchlorid,    die mit 5 Gewichts  teilen Aceton versetzt wurden, behandelt.

    Man reduziert das     Nitrobenzoylprodukt    mit  42 Gewichtsteilen kristallisiertem Natrium  sulfid, .die in 70 Gewichtsteilen Wasser ge  löst     wurden.bei   <B>65-70'</B> zum     Aminobenzoyl-          produkt,    48,6 Gewichtsteile des abgeschie  denen Reduktionsproduktes werden als neu  trale Lösung in 500 Gewichtsteilen Wasser  zu einer     Anschlämmung    von 18,4 Gewichts  teilen     Cyanurchlorid    in 500 Gewichtsteilen  kaltem Wasser gegeben. Die bei der     Konden.     sation entstehende Salzsäure wird durch die  entsprechende Menge     Natriumcarbonat    neu  tralisiert.

   Hernach werden 50 Gewichtsteile  des     Monoazofarbstoffes        4'-(4"-Aminobenzoyl-          amino)    -     5'-methoxy-2'-methyl-4-oxy-3-carb-          oxy-1,1'-azobenzol-5-sulfonsäure,    die als Na  triumsalz     in    500     Gewichtsteilen        Wasser    ge  löst wurden, zum     Monokondensationsprodukt         gegeben. Die Temperatur wird dabei auf 40'  erhöht. Die bei ,der Kondensation entstehende  Salzsäure wird mit     Natriumcarbonat    neutra  lisiert. Nach 2 Stunden gibt man 9,8 Ge  wichtsteile Anilin zu und hält die Tempera  tur während der gleichen Zeit auf 80  .

   Das  tertiäre Kondensationsprodukt ist nach dieser  Zeit gebildet. Es wird mit     Natriumchlorid     abgeschieden und getrocknet.



  Process for the preparation of a polyazo dye. It has been found that a new polyazo dye can be obtained if 1 mole 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.

   which itself is obtained by allowing 4-nitrobenzoyl chloride to act on the coupling product of diazotized 2-aminobenzene-1-carboxylic acid and 1 (4'-amino) @ - phenyl-5-pyrazolone-3-carboxylic acid, 1 mol Aniline and 1 mole of 4 '- (4 "-amino benzoylamino) -5'-methoxy-2'-methyl-4-oxy-3-carboxy-1,1'-azobenzene-5-sulfonic acid.

   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> <B> 36.7 </B> parts by weight of the monoazo dye from diazotized 2-aminobenzene-1-carboxylic acid and 4'-aminophenylpyrazolone-3-carboxylic acid are used as the sodium salt in 300 parts by weight of water dissolved with the addition of 13.5 parts by weight of sodium acetate. This solution is treated at 60 with 18.5 parts by weight of 4-nitrobenzoyl chloride to which 5 parts by weight of acetone have been treated.

    The nitrobenzoyl product is reduced with 42 parts by weight of crystallized sodium sulfide, which were dissolved in 70 parts by weight of water, to give the aminobenzoyl product at 65-70, 48.6 parts by weight of the reduction product separated out as neutral Solution in 500 parts by weight of water to a slurry of 18.4 parts by weight of cyanuric chloride in 500 parts by weight of cold water. The one at the Konden. The hydrochloric acid formed is neutralized with the appropriate amount of sodium carbonate.

   Thereafter, 50 parts by weight of the monoazo dye 4 '- (4 "-Aminobenzoyl-amino) - 5'-methoxy-2'-methyl-4-oxy-3-carbo-oxy-1,1'-azobenzene-5-sulfonic acid, the 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 the condensation is neutralized with sodium carbonate. After 2 hours, 9.8 parts by weight of aniline are added and keeps the temperature at 80 during 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, da.ss man auf 1 Mol Cyanurchlorid 1 Mol des Monoazofarbstoffes, der erhalten wird durch Reduzieren der Nitrogruppe zur Aminogruppe in dem Produkt, PATENT CLAIM Process for the preparation of a new polyazo dye, characterized in that 1 mol of the monoazo dye 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 Einwirkenlassen von 4-Nitrobenzoyl- chlorid auf das Kupplungsprodukt aus diazo- tierter 2-Aminobenzol-l-carbonsäure und 1- W- Amino) - phenyl - 5 -pyrazolon - 3 -carbon- säure, 1 Mol Anilin und 1 Mol 4'-(4"-Amino- henzoylamino) which itself is obtained by allowing 4-nitrobenzoyl chloride to act on the coupling product of diazo-tated 2-aminobenzene-1-carboxylic acid and 1- (w-amino) phenyl-5-pyrazolone-3-carboxylic acid, 1 mol of aniline and 1 mole of 4 '- (4 "-amino-henzoylamino) -5'-methoxy-2'-methy 1-4-oxy-3- carboxy-1,1'-azobenzol-5-sulfonsäure, einwir ken lässt. Der neue Polyazofarbstoff färbt Baumwolle in schwach alkalischem Bade bei Gegenwart von Kupfersulfat und weinsaurem Natrium in waschechten gelben Tönen. -5'-methoxy-2'-methy 1-4-oxy-3-carboxy-1,1'-azobenzene-5-sulfonic acid, allowed to 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.
CH217964D 1939-07-12 1940-06-14 Process for the preparation of a polyazo dye. CH217964A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH215147T 1939-07-12
CH217964T 1940-06-14

Publications (1)

Publication Number Publication Date
CH217964A true CH217964A (en) 1941-11-15

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ID=25725687

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217964D CH217964A (en) 1939-07-12 1940-06-14 Process for the preparation of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH217964A (en)

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