CH217962A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

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Publication number
CH217962A
CH217962A CH217962DA CH217962A CH 217962 A CH217962 A CH 217962A CH 217962D A CH217962D A CH 217962DA CH 217962 A CH217962 A CH 217962A
Authority
CH
Switzerland
Prior art keywords
dye
weight
parts
amino
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 CH217962A publication Critical patent/CH217962A/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

  

  <B>Zusatzpatent</B> 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    2     Mol    des       Monoazofarbstoffes,    der erhalten wird durch  Reduzieren der Nitrogruppe zur     Aminogruppe     in dem Produkt,

   das selbst erhalten wird  durch Einwirkenlassen von     4-Nitrobenzoyl-          ehlorid    auf .den     Monoazofarbstoff    aus     @diazo-          tierter        3-Amino-2-oxy-l-carboxybenzol-5-sul-          fonsäure    und     1-Methyl-3-aminobenzol    und  1     Mol        4-Amino-4'-oxyazobenzol-3'-carbon-          säure    einwirken lässt.

   Der neue     Polyazofarb-          stoff    färbt Baumwolle in schwach alkali  schem Bade bei Gegenwart von Kupfersulfat  und weinsaurem Natrium in waschechten,       rotstichig    gelben Tönen an.  



  <I>Beispiel:</I>  70,2 Gewichtsteile des     Monoazofarbstoffes     aus     diazotierter        3-Amino-2-oxy-l-aarboxy-          benzol-5-sulfonsäurL-    und     1-Methyl-3-amino-          benzol    werden als     Natriumsalz    in 500 Ge  wichtsteilen Wasser     unter    Zusatz von 27 Ge-         wichtsteilen        Natriumacetat    gelöst. Diese Lö  sung wird bei etwa<B>60'</B> mit 39 Gewichts  teilen     4-Nitrobenzoylchlorid,    die mit 10 Ge  wichtsteilen Aceton versetzt wurden, behan  delt.

   Man     reduziert    das     Nitrobenzoylprodukt     mit 84 Gewichtsteilen     kristallisiertem    Na  triumsulfid, die in 150     Gewichtsteilen    Was  ser gelöst wurden, bei<B>65-70'</B> zum     Amino-          benzoylprodukt.     



  94 Gewichtsteile des abgeschiedenen Re  duktionsproduktes werden als neutrale Lö  sung in 1.000 Gewichtsteilen Wasser zu einer       Anschlämmung    von 18,4 Gewichtsteilen       Cyanurchlorid    in 500 Gewichtsteilen     kaltem     Wassergegeben. Die bei der Kondensation  entstehende Salzsäure wird durch" die entspre  chende Menge     Natriumearbonat    neutralisiert.  Die Temperatur wird langsam     auf    40' ge  steigert und 2 Stunden bei 40-45   gehalten.

    Hernach werden 27,8 Gewichtsteile     4-amino-          4'-oxy-1,1'-azobenzol-3'-carbonsaures    Na  trium, :die in 500     Gewichtsteilen    Wasser ge  löst wurden, zum     Dikondensationsprodukt    ge-      geben und die Temperatur während 3 Stun  den auf 80   gehalten. Das tertiäre Konden  sationsprodukt ist nach dieser Zeit gebildet.  Es wird mittels     Natriumchlorid    abgeschieden  und getrocknet.



  <B> Additional patent </B> 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, 2 moles 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 @ diazo-tated 3-amino-2-oxy-1-carboxybenzene-5-sulphonic acid and 1-methyl-3-aminobenzene and 1 mol of 4 -Amino-4'-oxyazobenzene-3'-carboxylic acid 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, reddish yellow tones.



  <I> Example: </I> 70.2 parts by weight of the monoazo dye from diazotized 3-amino-2-oxy-1-aarboxy-benzene-5-sulfonic acid and 1-methyl-3-aminobenzene are used as the sodium salt in 500 Parts by weight of water with the addition of 27 parts by weight of sodium acetate dissolved. This solution is treated at about <B> 60 '</B> with 39 parts by weight of 4-nitrobenzoyl chloride to which 10 parts by weight of acetone have been added.

   The nitrobenzoyl product is reduced with 84 parts by weight of crystallized sodium sulfide, which were dissolved in 150 parts by weight of water, at 65-70 'to the amino benzoyl product.



  94 parts by weight of the separated reduction product are added as a neutral solution in 1,000 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 hydrochloric acid formed during the condensation is neutralized with the appropriate amount of sodium carbonate. The temperature is slowly increased to 40 ° and kept at 40-45 for 2 hours.

    Thereafter, 27.8 parts by weight of 4-amino-4'-oxy-1,1'-azobenzene-3'-carboxylic acid sodium: which were dissolved in 500 parts by weight of water, are added to the dicondensation product and the temperature is maintained for 3 hours kept at 80. The tertiary condensation product is formed after this time. It is precipitated using sodium chloride and dried.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Polyazofarbstoffes, dadurch gekennzeichnet, dass man auf 1 Mol Cyanurchlorid 2 Mol des Monoazofarbstoffes, der erhalten wird durch Reduzierender Nitrogruppe zur Aminogruppe in dem Produkt, das selbst erhalten wird durch Einwirkenlassen von 4-Nitrobenzoyl- chlorid auf den Monoazofarbstoff aus di- azotierter 3-Amino-2-oxy-l-earbogybenzol- 5-sulfonsäure, Claim: Process for the preparation of a new polyazo dye, characterized in that, for 1 mole of cyanuric chloride, 2 moles of the monoazo dye, which is obtained by reducing the nitro group to the amino group in the product, which is itself obtained by allowing 4-nitrobenzoyl chloride to act on the monoazo dye from diacotized 3-amino-2-oxy-l-earbogybenzene-5-sulfonic acid, 1-3!Lethyl-3-aminobenzol und 1 Mol 4-A,mino-4'-oxyazobenzol-3'-carbon- säure einwirken lässt. Der neue Polyazofarb- stoff färbt Baumwolle in schwach alkali schem Bade bei Gegenwart von Kupfersulfat und weinsaurem Natrium in waschechten, rotstichig gelben Tönen an. 1-3! Lethyl-3-aminobenzene and 1 mol of 4-A, mino-4'-oxyazobenzene-3'-carboxylic 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, reddish yellow tones.
CH217962D 1939-07-12 1939-07-12 Process for the preparation of a polyazo dye. CH217962A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH215147T 1939-07-12
CH217962T 1939-07-12

Publications (1)

Publication Number Publication Date
CH217962A true CH217962A (en) 1941-11-15

Family

ID=25725685

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217962D CH217962A (en) 1939-07-12 1939-07-12 Process for the preparation of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH217962A (en)

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