CH228936A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

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Publication number
CH228936A
CH228936A CH228936DA CH228936A CH 228936 A CH228936 A CH 228936A CH 228936D A CH228936D A CH 228936DA CH 228936 A CH228936 A CH 228936A
Authority
CH
Switzerland
Prior art keywords
amino
mol
carboxylic acid
phosgene
production
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 CH228936A publication Critical patent/CH228936A/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
    • C09B43/14Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with phosgene or thiophosgene

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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man     einen    neuen       Azofarbstoff    erhält,     wenn    man 1     Mol    diano  tierte     1-Aminobenzol-2-carbonsäure,    1     Mol     2-(4'-     Amino)-benzoylamino-5-oxynaphthalin-          7-sulfonsäure,    1     Mol        Phosgen    und 1     Mol          4-Amino-4'-        oxy-1,1'-        azobenzol-3'-carbonsäure     derart aufeinander einwirken lässt,

   dass die       Diazoverbindung    in     6-Stellung    des Naphtha  linkernes eingreift und das     Phosgen    die       Aminogruppen    der     2-(4'-Amino)-benzoyl-          amino    - 5 -     oxynaphthalin-    7     -sulfonsäure    und  die     4-Amino-4'-oxy-1,1'-azobenzol-3'-carbon-          säure    unter Bildung     eines    gemischten Harn  stoffderivates vereinigt.  



  Der neue Farbstoff stellt ein braunrotes  Pulver dar und färbt Baumwolle in schwach  alkalischem Bade, das mit einer Kupfersalz  lösung aus Kupfersulfat und weinsaurem Na  trium versetzt wurde, in wasch- und licht  echten     orangebraunen    Tönen an.         Beispiel:     13,7 Gewichtsteile     1-Aminobenzol-2-car-          bonsäure    werden in 200 Gewichtsteilen Was-         ser    mit Natronlauge neutral gelöst und mit  6,9 Gewichtsteilen     Natriumnitrit        und    25 Ge  wichtsteilen     konz.    Salzsäure bei 5  dianotiert.

    Nach 30 Minuten wird das entstandene     Di-          azoniumsalz    mit<B>35,8</B> Gewichtsteilen 2-(4'       Amino)-benzoylamino-5-ogynaphthalin-7-sul-          fonsäure,    die als     Natriumsalz    in 200 Ge  wichtsteilen Wasser gelöst wurden, unter Zu  satz von 30 Gewichtsteilen     Natriumcarbonat     und gegebenenfalls unter Zusatz von Fis bei  5  vereinigt. Nach 6 Stunden wird der ge  bildete     Monoazofarbstoff    mit Kochsalz als       Natriumsalz    in der Wärme abgeschieden.

    55 Gewichtsteile     Dinatriumsalz    des so erhal  tenen Produktes werden mit 27,9 Gewichts  teilen     Natriumsalz    der     4-Amino-4'-ogy-1;1'-          azobenzol-3'-carbonsäure    in 6000 Gewichts  teilen Wasser unter Zusatz von 60 Gewichts  teilen     Natriumcarbonat    gelöst und bei 30 bis  40  mit     Phosgen    behandelt, bis keine freie       NH2-Gruppe    mehr nachweisbar ist. Der ge  bildete Harnstoff wird kongosauer abgeschie  den, unter     Zusatz    von Natronlauge gelöst      und der Farbstoff als     Natriumsalz    mit Koch  salz abgeschieden und getrocknet.  



  Zum gleichen Farbstoff gelangt man  auch, wenn man zunächst aus 1     Mol    2-(4'       Amino)-benzoylamino-5-oxynaphthalin-7-sul-          fonsäure    und 1     Mol        4-Amino-4'-oxy-1,1'-a,zo-          benzol-3'-carbonsäure    und     Phosgen    einen ge  mischten Harnstoff herstellt und     diesen    mit  1     Mol    der     diazotierten        1-Aminobenzol-2-ca.r-          bonsäure    vereinigt.



  Process for the production of a new azo dye. It has been found that a new azo dye is obtained if 1 mol of diano-oriented 1-aminobenzene-2-carboxylic acid, 1 mol of 2- (4'-amino) -benzoylamino-5-oxynaphthalene-7-sulfonic acid, 1 mol of phosgene and 1 mol of 4-amino-4'-oxy-1,1'-azobenzene-3'-carboxylic acid can act on one another in such a way that

   that the diazo compound intervenes in the 6-position of the naphtha linkernes and the phosgene the amino groups of 2- (4'-amino) -benzoyl-amino-5-oxynaphthalene-7-sulfonic acid and 4-amino-4'-oxy-1, 1'-azobenzene-3'-carboxylic acid combined to form a mixed urea derivative.



  The new dye is a brown-red powder and dyes cotton in a weakly alkaline bath to which a copper salt solution of copper sulfate and tartaric sodium has been added in washable and light orange-brown tones. Example: 13.7 parts by weight of 1-aminobenzene-2-carboxylic acid are dissolved neutrally in 200 parts by weight of water with sodium hydroxide solution and 6.9 parts by weight of sodium nitrite and 25 parts by weight of conc. Hydrochloric acid dianotized at 5.

    After 30 minutes, the diazonium salt formed is dissolved with 35.8 parts by weight of 2- (4 'amino) benzoylamino-5-ogynaphthalene-7-sulphonic acid, the sodium salt, in 200 parts by weight of water were combined with the addition of 30 parts by weight of sodium carbonate and optionally with the addition of Fis at 5. After 6 hours, the monoazo dye formed is deposited in the heat with common salt as the sodium salt.

    55 parts by weight of the disodium salt of the product obtained in this way are dissolved with 27.9 parts by weight of the sodium salt of 4-amino-4'-ogy-1; 1'-azobenzene-3'-carboxylic acid in 6000 parts by weight of water with the addition of 60 parts by weight of sodium carbonate and treated with phosgene at 30 to 40 until no more free NH2 groups can be detected. The urea formed is deposited in Congo acid, dissolved with the addition of sodium hydroxide solution and the dye deposited as the sodium salt with sodium chloride and dried.



  The same dye can also be obtained if 1 mol of 2- (4 'amino) benzoylamino-5-oxynaphthalene-7-sulphonic acid and 1 mol of 4-amino-4'-oxy-1,1'-a , zobenzene-3'-carboxylic acid and phosgene produces a mixed urea and combines this with 1 mole of the diazotized 1-aminobenzene-2-carboxylic acid.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man 1 Mol diazotierte 1-Aminobenzol-2-ca,r- bonsäure, 1 Mol 2-(4'-Amino)-benzoylamino- 5-oxynaphthalin-7-sulfonsäure, 1 Mol Phos- gen und 1 Mo14- A.mino-4'-oxy-1,1'-azobenzol- 3'-carbonsäure derart aufeinander einwirken lä,sst, PATENT CLAIM: A process for the production of a new azo dye, characterized in that 1 mol of diazotized 1-aminobenzene-2-ca, r -boxylic acid, 1 mol of 2- (4'-amino) -benzoylamino-5-oxynaphthalene-7-sulfonic acid, 1 mol of phosgene and 1 Mo14- A.mino-4'-oxy-1,1'-azobenzene-3'-carboxylic acid act on one another in such a way that dass die Diazov erbindung in 6-Stellung des NapWhalinkernes eingreift und das Phosgen die Aminogruppen der ?-(4'-Amino)- benzoylamino-b-oxynaphthalin- 7-sulfonsäure und der 4-Amino-4'-oxy-1,1'-azobenzol-3'- carbonsäure unter Bildung eines gemischten Harnstoffderivates vereinigt. that the Diazov connection intervenes in the 6-position of the NapWhalin nucleus and the phosgene the amino groups of? - (4'-amino) - benzoylamino-b-oxynaphthalene- 7-sulfonic acid and 4-amino-4'-oxy-1,1 ' -azobenzene-3'-carboxylic acid combined to form a mixed urea derivative. Der neue Farbstoff stellt ein braunrotes Pulver dar und färbt Baumwolle in schwach alkalischem Bade, das mit einer Kupfersalz lösung aus Kupfersulfat und weinsaurem Na trium versetzt wurde, in wasch- und licht echten orangebraunen Tönen an. The new dye is a brown-red powder and dyes cotton in a weakly alkaline bath to which a copper salt solution of copper sulfate and tartaric sodium has been added in washable and light orange-brown tones.
CH228936D 1942-07-03 1942-07-03 Process for the production of a new azo dye. CH228936A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH228936T 1942-07-03

Publications (1)

Publication Number Publication Date
CH228936A true CH228936A (en) 1943-09-30

Family

ID=4455829

Family Applications (1)

Application Number Title Priority Date Filing Date
CH228936D CH228936A (en) 1942-07-03 1942-07-03 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH228936A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943661C (en) * 1952-01-17 1956-05-24 Sandoz Ag Process for the production of disazo and polyazo dyes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943661C (en) * 1952-01-17 1956-05-24 Sandoz Ag Process for the production of disazo and polyazo dyes

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