CH175031A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH175031A
CH175031A CH175031DA CH175031A CH 175031 A CH175031 A CH 175031A CH 175031D A CH175031D A CH 175031DA CH 175031 A CH175031 A CH 175031A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
dye
acid
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 CH175031A publication Critical patent/CH175031A/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
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

      Verfahren    zur Herstellung     eines    neuen     Azofarbstofes.       Es wurde gefunden, dass man einen neuen     Azofarbstoff    der Formel  
EMI0001.0005     
    erhält, wenn man den     Äthylester    des     2-Di-          a.zo    - 4 -     earbonsäure    - 4'-     methyl-1    .     1'-diphenyl-          sulfons    mit dem     Anilid    der     2.3-Oxynaph-          thoesäure    kuppelt.  



  Der so erhaltene Farbstoff bildet ein  braunes Pulver. Auf geeigneten Substraten,  wie zum Beispiel Baumwolle, Wolle, Kunst  seide, hergestellt, färbt er diese in leuchten  den, sehr echten orangen Tönen.    <I>Beispiel:</I>  26,3 Teile     2.3-Oxynaphthoesäure-anilid     werden in 2000 Teilen Wasser und 60 Teilen  30%iger     Natriumhydroxydlösung    gelöst.  Diese Lösung wird in eine wässerige Lösung,  die 31,9 Teile     diazotierten        Ithylester    des       -)-Amino-4-earbonsäure-4'-methyl-1    .     1'-diphe-          nylsulfons    enthält und mit Essigsäure an  gesäuert     wurde,    eingetragen.

   Der gebildete      Farbstoff fällt sofort aus. Er wird filtriert,  gewaschen und getrocknet.



      Process for the preparation of a new azo dye. It has been found that a new azo dye of the formula
EMI0001.0005
    obtained when the ethyl ester of 2-di-a.zo-4-carboxylic acid-4'-methyl-1. 1'-diphenyl sulfone couples with the anilide of 2,3-oxynaphthoic acid.



  The dye thus obtained forms a brown powder. Produced on suitable substrates such as cotton, wool, artificial silk, he dyes them in bright, very real orange tones. <I> Example: </I> 26.3 parts of 2,3-oxynaphthoic acid anilide are dissolved in 2000 parts of water and 60 parts of 30% sodium hydroxide solution. This solution is dissolved in an aqueous solution containing 31.9 parts of diazotized ethyl ester of -) - amino-4-carboxylic acid-4'-methyl-1. Contains 1'-diphenylsulfons and was acidified with acetic acid, entered.

   The dye formed precipitates immediately. It is filtered, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren Zur Herstellung eines Azofarb- stoffes der Formel EMI0002.0004 dadurch gekennzeichnet, dass man den Äthyl- ester des 2-Diazo-4-carbonsäure-4'-methyl- 1.1'-diphenylsulfons mit dem Anilid der . 3-Ogynaphthoesäure kuppelt. Der so erhaltene Farbstoff bildet ein braunes Pulver. Auf geeigneten Substraten, wie zum Beispiel Baumwolle, Wolle, Kunst seide, hergestellt, färbt er diese in leuchten den, sehr echten orangen Tönen. PATENT CLAIM: Process for the production of an azo dye of the formula EMI0002.0004 characterized in that the ethyl ester of 2-diazo-4-carboxylic acid 4'-methyl-1.1'-diphenyl sulfone with the anilide of. 3-ogynaphthoic acid couples. The dye thus obtained forms a brown powder. Produced on suitable substrates such as cotton, wool, artificial silk, he dyes them in bright, very real orange tones.
CH175031D 1934-01-30 1934-01-30 Process for the production of a new azo dye. CH175031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH175031T 1934-01-30

Publications (1)

Publication Number Publication Date
CH175031A true CH175031A (en) 1935-02-15

Family

ID=4425920

Family Applications (1)

Application Number Title Priority Date Filing Date
CH175031D CH175031A (en) 1934-01-30 1934-01-30 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH175031A (en)

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