CH186551A - Process for the preparation of an acid dye of the benzidine series. - Google Patents

Process for the preparation of an acid dye of the benzidine series.

Info

Publication number
CH186551A
CH186551A CH186551DA CH186551A CH 186551 A CH186551 A CH 186551A CH 186551D A CH186551D A CH 186551DA CH 186551 A CH186551 A CH 186551A
Authority
CH
Switzerland
Prior art keywords
acid
benzidine
preparation
acid dye
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals Sandoz
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 Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH186551A publication Critical patent/CH186551A/en

Links

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
    • C09B35/00Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02Disazo dyes
    • C09B35/039Disazo dyes characterised by the tetrazo component
    • C09B35/08Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
    • C09B35/10Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type
    • C09B35/18Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type from heterocyclic compounds
    • 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
    • C09B35/00Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02Disazo dyes
    • C09B35/039Disazo dyes characterised by the tetrazo component
    • C09B35/08Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl

Landscapes

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

Description

  

  Verfahren zur Darstellung eines Säurefarbstoffes der     Benzidinreihe.       <B>Es</B> wurde gefunden,     dass        säurewalkechte          Disazofarbstoffe    erhalten werden, wenn man       Tetrazoverbindungen    von     Diaminodiaryl-          disulfonsäuren    mit zwei Molekülen gleicher  oder verschiedener, zusammen mindestens  eine     Sulfonsäure-    oder im     Reterozyklus    eine       Carboxylgruppe    enthaltender     1-Aryl-5-pyra-          zolone    kuppelt.

   In vielen Fällen können, die       F'arbstoffe    vorteilhaft auch so dargestellt  werden,     dass    man die betreffende     Diamino-          diaryl,disulfonsä,ure    oder ihr     Monoacylderivat          mono,diazotiert,    mit einer der genannten  Komponenten kuppelt, die Zwischenverbin  dung, nötigenfalls nach vorheriger     Versei-          fung,        weiterdiazotiert    und mit der zweiten  Komponente verbindet. Die neuen Farbstoffe  färben Wolle und Haar in gelben bis oran  gen Tönen von sehr guter     Säurewalkechtheit.     



  Als     Diaminodiaryldisulfonsäure   <U>kommen</U>  beispielsweise in Betracht:     Benzidin-2,2'-          oder        -13,3'-disulfonsäuren,        Diehlorbenzidin-          disulfonsäuren,        Tolidindisulfonsäuren,        Diani-          sidindisulfonsäuren    und     5,5-Diearboxybenz-          idin-2,2'-disulfoiisäure.       Als Kupplungskomponenten können bei  spielsweise folgende Verbindungen gewählt  werden:

       1-(3#'-oder4'-Suliophenyl)-3-methyl-          pyrazolon,        1-(4-Sulio-2',5'-dichlorphenyl)-3-          methylpyrazolon,        1-(3-Sulfo-4'-chlorphenyl)-          3-methylpyrazolon,        l,-Phenyl-,3-metliylpyra-          zolon,   <B>1 -</B>     Phenylpyrazolon   <B>- 3 -</B>     earbonsäure,          1-(4'-Sulfophenyl)-5-pyrazolon-3-ea,rbonsäure     <B>USW.</B>  



  Das vorliegende Patent betrifft die Dar  stellung eines Säurefarbstoffes der     Benzidin-          reihe;    das Verfahren ist dadurch gekenn  zeichnet,     dass    man die     Tetrazoverbindung    der       Benzidin-2,27-disulfonsäure    mit 2, Molekülen  <B>1 -</B>     (4-"Sulfo   <B>-</B>     dichlorphenyl)   <B>-3 -</B>     methyl-          pyrazolon    kuppelt.

      <I>Beispiel:</I>    <B>38,8 g</B>     benzidin-2,2-disulionsaures    Na  trium werden in<B>300</B>     cm#    Wasser gelöst und  durch Zusatz von<B>13,8 g</B>     Natriumnitrit    und  <B>,60 g</B>     ca.        ffliger    Salzsäure in     üblieher     Weise bei<B>10</B> bis 20'     tetrazotiert.    Die Lö  sung     bezw.    Suspension der Tetrazoverbin-           dung    wird hierauf mit Eis auf<B>0</B> bis<B>5'</B> ab  gekühlt und mit einer Lösung von 64,6<B>g</B>  <B>1-</B>     (4'-Sulfo--9',5-dielilorplienyl)

  -3-methyl-          pyrazolon    in     3,0#O        em#    Wasser und<B>8 g</B>     Na-          triumhydroxyd    versetzt, die Mineralsäure  dieser Mischung wird dann mit Soda oder       Natriumacetat    neutralisiert, wonach die  Kupplung zum     Disazofarbstoff        rasel-i    zu  Ende geht. Der gebildete Farbstoff wird  mit Kochsalz     ausgesalzen,    hierauf abgesaugt  und getrocknet. Er färbt auf Wolle und  Haar ein reines Gelb von ausgezeichneter       Säurewalkechtheit.  



  Process for the preparation of an acid dye of the benzidine series. <B> It </B> has been found that acid-quenched disazo dyes are obtained if tetrazo compounds of diaminodiaryl disulfonic acids with two molecules of the same or different, together at least one sulfonic acid or in the reterocycle containing 1-aryl-5-pyra- zolone couples.

   In many cases, the dyes can advantageously also be prepared by coupling the diamino diaryl, disulfonic acid, or its monoacyl derivative mono, diazotized, with one of the components mentioned, the intermediate compound, if necessary after previous saponification , further diazotized and connects to the second component. The new dyes dye wool and hair in yellow to orange shades with very good acid whale fastness.



  As diaminodiaryldisulfonic acid, for example, benzidine-2,2'- or -13,3'-disulfonic acids, diehlobenzidine disulfonic acids, tolidinedisulfonic acids, dianisidinedisulfonic acids and 5,5-diearboxybenzidyne-2, 2'-disulfoic acid. The following connections, for example, can be selected as coupling components:

       1- (3 # '- or 4'-suliophenyl) -3-methyl-pyrazolone, 1- (4-sulio-2', 5'-dichlorophenyl) -3-methylpyrazolone, 1- (3-sulfo-4'-chlorophenyl ) - 3-methylpyrazolone, l, -phenyl-, 3-methylpyrazolone, <B> 1 - </B> Phenylpyrazolone <B> -3 - </B> carboxylic acid, 1- (4'-sulfophenyl) -5 -pyrazolon-3-ea, rboxylic acid <B> ETC. </B>



  The present patent relates to the presentation of an acid dye of the benzidine series; The method is characterized in that the tetrazo compound of benzidine-2,27-disulfonic acid with 2, molecules <B> 1 - </B> (4- "sulfo <B> - </B> dichlorophenyl) <B> -3 - </B> methyl pyrazolone couples.

      <I> Example: </I> <B> 38.8 g </B> benzidine-2,2-disulionic acid sodium are dissolved in <B> 300 </B> cm # of water and, by adding <B> 13.8 g </B> sodium nitrite and <B>, 60 g </B> approx. Liquid hydrochloric acid tetrazotized in the usual way at <B> 10 </B> to 20 '. The solution respectively. The suspension of the tetrazo compound is then cooled with ice to <B> 0 </B> to <B> 5 '</B> and with a solution of 64.6 <B> g </B> <B> 1 - </B> (4'-sulfo - 9 ', 5-dielilorplienyl)

  -3-methylpyrazolone in 3.0 # O em # water and <B> 8 g </B> sodium hydroxide are added, the mineral acid of this mixture is then neutralized with soda or sodium acetate, after which the coupling to the disazo dye rasel-i comes to an end. The dye formed is salted out with common salt, then filtered off with suction and dried. It dyes wool and hair a pure yellow with excellent acid whale fastness.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur. Darstellung eines Säure farbstoffes der Benzidinreille, dadurch ge kennzeichnet, dass man die Tetrazoverbin- dung der Benzidin <B>-</B> 2,2'<B>-</B> disulfons äure mit zwei Molekülen 1-(4-Sulfo-2',5'-.diehlorphe- nyl)-3-metliylpyrazolon kuppelt. Der Farbstoff färbt auf Wolle und Haar ein reines Gelb von ausgezeichneter Säure- walkechtheit. PATENT CLAIM: Method for. Representation of an acid dye of the benzidine chain, characterized in that the tetrazo compound of the benzidine <B> - </B> 2,2 '<B> - </B> disulfonic acid with two molecules 1- (4-sulfo -2 ', 5' -. Diehlorphhenyl) -3-methylpyrazolone couples. The dye dyes wool and hair a pure yellow with excellent acid-mill fastness.
CH186551D 1935-11-09 1935-11-09 Process for the preparation of an acid dye of the benzidine series. CH186551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH186551T 1935-11-09

Publications (1)

Publication Number Publication Date
CH186551A true CH186551A (en) 1936-09-30

Family

ID=4434454

Family Applications (1)

Application Number Title Priority Date Filing Date
CH186551D CH186551A (en) 1935-11-09 1935-11-09 Process for the preparation of an acid dye of the benzidine series.

Country Status (1)

Country Link
CH (1) CH186551A (en)

Similar Documents

Publication Publication Date Title
CH186551A (en) Process for the preparation of an acid dye of the benzidine series.
DE745759C (en) Process for the production of azo dyes
DE695400C (en) Process for the preparation of disazo dyes
AT40173B (en) Process for the preparation of trisazo dyes.
DE728886C (en) Process for the preparation of copper complex compounds of substantive azo dyes
DE695403C (en) Process for the preparation of polyazo dyes
DE443522C (en) Process for the preparation of related disazo dyes
CH198053A (en) Process for the preparation of a polyazo dye.
DE850042C (en) Process for the production of copper-containing trisazo dyes
DE652871C (en) Process for the preparation of disazo dyes
DE746076C (en) Process for the preparation of water-soluble disazo dyes
AT106453B (en) Process for the preparation of related disazo dyes.
AT115627B (en) Process for the preparation of polyazo dyes.
CH208537A (en) Process for the preparation of a new water-soluble disazo dye.
CH190425A (en) Process for the preparation of an azo dye.
CH210732A (en) Process for the preparation of a new water-soluble disazo dye.
CH133803A (en) Process for the preparation of a new azo dye.
CH124273A (en) Process for the production of a new dye.
CH124272A (en) Process for the production of a new dye.
CH211000A (en) Process for the preparation of a new water-soluble disazo dye.
CH119911A (en) Process for the preparation of an azo dye.
CH198056A (en) Process for the preparation of a polyazo dye.
CH185833A (en) Process for the preparation of an azo dye.
CH238518A (en) Process for the production of a new azo dye.
CH119913A (en) Process for the preparation of an azo dye.