CH230631A - Process for the preparation of a trisazo dye. - Google Patents

Process for the preparation of a trisazo dye.

Info

Publication number
CH230631A
CH230631A CH230631DA CH230631A CH 230631 A CH230631 A CH 230631A CH 230631D A CH230631D A CH 230631DA CH 230631 A CH230631 A CH 230631A
Authority
CH
Switzerland
Prior art keywords
acid
amino
dye
methylbenzene
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH230631A publication Critical patent/CH230631A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/16—Trisazo dyes
    • C09B31/26—Trisazo dyes from other coupling components "D"
    • C09B31/28—Heterocyclic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Coloring (AREA)

Description

  

  <B>Zusatzpatent</B>     zum    Hauptpatent Nr. 223073.         Verfahren        zur    Herstellung eines     Trisazofarbstoffes.            Gegenstand        vorliegenden        Patentes    ist ein  Verfahren zur Herstellung eines     Trisazofarb-          stoffes.    Das     verfahren    ist dadurch gekenn  zeichnet,

   dass man     diazotierte        3-Aminobenzod-          1@carbonsäure-5-su-Ifonsäure    mit     1-Amino-3-          methylbenzol-N-uo-methansulfonsäure    kup  pelt, durch     verseifung    die     Aminogruppe    frei  legt,     weiterdiazotiert,    nochmals mit     1-Amino-          3-methy        lbenzol-N-co-methansulfonsäure    kup  pelt,

   verseift und den so erhaltenen     Amino-          -disazafarbstoff    nach     erneutem        Diazotieren     mit     Barbitursäure        vereinigt.     



  Der neue     Farbstoff    stellt     ein    rotbraunes,  wasserlösliches     Pulver    dar und färbt Baum  wolle in klaren :gelborangen Tönen.  



       Beispiel:     21,7 g     3-Amxnobenzol        -1-carbonsäure-5-          sulfonsäure        werden    unter Zusatz von etwas  Natronlauge     gelöst;

      man     fügt    6,9g     Natrium-          nitrit    zu und     lässt,diese    Lösung in überscUüs-         sige        Salzsäure        einlaufen.    Mit dieser     Diazo-          verbindung    verfährt man     weiter,    indem man  sauer auf     1-amino-3-methylbenzol-N-co-          methansu-Ifonsaures    Natrium kuppelt,     mit     Natronlauge verseift,

       weiterdiazotiert    und       wieder    auf dieselbe     Kupplungskomponente     kuppelt. Nach erneuter     -Verseifung    und     Di-          azotierung        vereinigt    man das Zwischenpro  dukt zum Schluss     mit        Barbitursäure.     



  Der neue Farbstoff färbt Baumwolle     in     klaren gelborangen     Tönen    von     .guter        Lieht-          echtheit    und     Ätzbarkeit    an.



  <B> Additional patent </B> to main patent no. 223073. Process for the production of a trisazo dye. The subject of the present patent is a process for the production of a trisazo dye. The procedure is characterized by

   that one diazotized 3-aminobenzod- 1 @ carboxylic acid-5-su-ifonic acid with 1-amino-3-methylbenzene-N-uo-methanesulfonic acid kup pelt, exposes the amino group by saponification, further diazotized, again with 1-amino 3- methylbenzene-N-co-methanesulfonic acid coupled,

   saponified and combined the amino disaza dye thus obtained after renewed diazotization with barbituric acid.



  The new dye is a red-brown, water-soluble powder and colors cotton in clear: yellow-orange tones.



       Example: 21.7 g of 3-aminobenzene-1-carboxylic acid-5-sulfonic acid are dissolved with the addition of a little sodium hydroxide solution;

      6.9 g of sodium nitrite are added and this solution is allowed to run into excess hydrochloric acid. You proceed with this diazo compound by coupling acidic sodium to 1-amino-3-methylbenzene-N-co-methanesu-ifonic acid, saponifying it with sodium hydroxide solution,

       further diazotized and coupled again to the same coupling component. After renewed saponification and diazotization, the intermediate product is finally combined with barbituric acid.



  The new dye dyes cotton in clear yellow-orange tones with good light fastness and etchability.

Claims (1)

PATENTANSPRUCH: verfahren zur Herstellung eines Trisazo- farbatoffes, -dadurch gekennzeichnet, @dass man ,diazotierte 3-Aminobenzol-l-caTbansäure-5- sulfonsäure mit 1-Amino-3-methylbenzol-N- co-methansulfonsäure kuppelt, durch @Versei- fung die Aminogruppe freilegt, weiterdiazo- tiert, PATENT CLAIM: Process for the production of a trisazo-colorant, characterized in that diazotized 3-aminobenzene-1-caTbanoic acid-5-sulfonic acid is coupled with 1-amino-3-methylbenzene-N-co-methanesulfonic acid, by @ Versei- the amino group is exposed, further diazo- nochmals mit 1-Amino-3-.methylbenzol- N-uo-.methansulfonsäure kuppelt, verseift und den so erhaltenen Aminodisazofarbstoff nach erneutem Diazotieren mit Barbitursäure ver einigt. Der neue Farbstoff stellt ein rotbraunes, wasserlösliches Pulver dar und färbt Baum wolle in klaren b lborangen Tönen. Coupled again with 1-amino-3-.methylbenzene-N-uo-.methanesulfonic acid, saponified and the aminodisazo dye thus obtained is united after renewed diazotization with barbituric acid. The new dye is a red-brown, water-soluble powder and dyes cotton in clear blue-orange tones.
CH230631D 1939-04-17 1941-08-26 Process for the preparation of a trisazo dye. CH230631A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE230631X 1939-04-17
CH223073T 1941-08-26

Publications (1)

Publication Number Publication Date
CH230631A true CH230631A (en) 1944-01-15

Family

ID=25726670

Family Applications (1)

Application Number Title Priority Date Filing Date
CH230631D CH230631A (en) 1939-04-17 1941-08-26 Process for the preparation of a trisazo dye.

Country Status (1)

Country Link
CH (1) CH230631A (en)

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