CH187019A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH187019A
CH187019A CH187019DA CH187019A CH 187019 A CH187019 A CH 187019A CH 187019D A CH187019D A CH 187019DA CH 187019 A CH187019 A CH 187019A
Authority
CH
Switzerland
Prior art keywords
azo dye
yellow
preparation
dye
methylsulfone
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 CH187019A publication Critical patent/CH187019A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
    • C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
    • C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr.     183455.       Verfahren zur     Tierstellung    eines     AzofarbstofPes.       Es wurde gefunden, dass     man    einen     Azo-          farbstoff    erhält, wenn man     diazotiertes        1-          Amino#benzol-4-methylsulfon    in alkalischem  Medium     mit        1-Phenyl-5-pyrazolon-ä-carbon-          säure        vereinigt.     



  Der so erhältliche Farbstoff bildet ein  gelbes Pulver, das sich in Form des Natrium  salzes in Wasser und Alkohol mit gelber  Farbe löst und auf     Acetatseide        rotstschig-          gelbe    Drucke von guten     Echtheitseigenschaf-          ten        liefert.       <I>Beispiel:

  </I>    171 Teile     1-Aminobenzol-4-methylsulfon     werden in salzsaurer Lösung wie üblich mit  69 Teilen     Natriumnitrit,diazotiert.    Die     Di-          azolösung    lässt man in eine     Natriumacetat     oder     -karbonat    enthaltende Lösung von 204  Teilen     1-Phenyl-5-pyrazolon-3-earbonsäure    in    der     äquivalenten    Menge     Natriumhydroxyd-          lösung        zutropfen.    Nach     beendeter    Kupplung       wird    der Farbstoff     abfiltriert     <RTI  

   ID="0001.0034">   und        getrock=          net.  



  <B> Additional patent </B> to main patent no. 183455. Process for animal production of an azo dye. It has been found that an azo dye is obtained when diazotized 1-amino-benzene-4-methylsulfone is combined with 1-phenyl-5-pyrazolone-α-carboxylic acid in an alkaline medium.



  The dye obtainable in this way forms a yellow powder which, in the form of the sodium salt, dissolves in water and alcohol with a yellow color and produces reddish-yellow prints with good fastness properties on acetate silk. <I> example:

  </I> 171 parts of 1-aminobenzene-4-methylsulfone are diazotized in a hydrochloric acid solution as usual with 69 parts of sodium nitrite. The diazo solution is added dropwise to a solution of 204 parts of 1-phenyl-5-pyrazolone-3-carboxylic acid in the equivalent amount of sodium hydroxide solution containing sodium acetate or carbonate. After the coupling has ended, the dye is filtered off <RTI

   ID = "0001.0034"> and getrock = net.

Claims (1)

<B>PATENTANSPRUCH</B> Verfahren zur Herstellung eines Azofarb- stoffes, .dadurch gekennzeichnet, dass man diazotiertes 1-Aminobenzol-4-methylsulfon in alkalischem Medium mit 1-Phenyl-5-pyrazo- lon-3-carbonsäure vereinigt. Der so erhältliche Farbstoff bildet ein gelbes Pulver, das sich in Form : <B> PATENT CLAIM </B> Process for the production of an azo dye, characterized in that diazotized 1-aminobenzene-4-methylsulfone is combined with 1-phenyl-5-pyrazolone-3-carboxylic acid in an alkaline medium. The dye obtained in this way forms a yellow powder that is in the form: des Natrium salzes in Wasser und Alkohol mit gelber Farbe löst und auf Acetatseide rotstichig- gelbe Drucke von guten Echtheitseigenschaf- ten liefert. of the sodium salt dissolves in water and alcohol with a yellow color and produces reddish-yellow prints with good fastness properties on acetate silk.
CH187019D 1935-03-18 1935-03-18 Process for the preparation of an azo dye. CH187019A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH187019T 1935-03-18
CH183455T 1935-03-18

Publications (1)

Publication Number Publication Date
CH187019A true CH187019A (en) 1936-10-15

Family

ID=25720866

Family Applications (1)

Application Number Title Priority Date Filing Date
CH187019D CH187019A (en) 1935-03-18 1935-03-18 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH187019A (en)

Similar Documents

Publication Publication Date Title
CH187019A (en) Process for the preparation of an azo dye.
CH183455A (en) Process for the preparation of an azo dye.
CH187020A (en) Process for the preparation of an azo dye.
CH187022A (en) Process for the preparation of an azo dye.
CH187021A (en) Process for the preparation of an azo dye.
CH204443A (en) Process for the production of a new azo dye.
CH174519A (en) Process for the production of a new azo dye.
CH172572A (en) Process for the production of a new azo dye.
CH203596A (en) Process for the preparation of a water-soluble azo dye.
CH171233A (en) Process for the production of a new azo dye.
CH203595A (en) Process for the preparation of a water-soluble azo dye.
CH236533A (en) Process for the preparation of an azo dye.
CH203597A (en) Process for the preparation of a water-soluble azo dye.
CH204445A (en) Process for the production of a new azo dye.
CH235456A (en) Process for the preparation of a water-soluble monoazo dye.
CH191423A (en) Process for the preparation of a monoazo dye.
CH203606A (en) Process for the production of a new azo dye.
CH163540A (en) Process for the production of a new azo dye.
CH202429A (en) Process for the preparation of a water-soluble monoazo dye.
CH179334A (en) Process for the production of a new azo dye.
CH214806A (en) Process for the preparation of an azo dye.
CH187120A (en) Process for the production of a new azo dye.
CH199962A (en) Process for the preparation of an azo dye.
CH229356A (en) Process for the preparation of a trisazo dye.
CH202248A (en) Process for the preparation of an azo dye.