CH177839A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH177839A
CH177839A CH177839DA CH177839A CH 177839 A CH177839 A CH 177839A CH 177839D A CH177839D A CH 177839DA CH 177839 A CH177839 A CH 177839A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
dye
orange
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 CH177839A publication Critical patent/CH177839A/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)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr.     1'l5031.       Verfahren zur Herstellung eines neuen     Azofarbstoff'es.       Es wurde gefunden, dass man einen neuen     Azofarbstoff    der Formel  
EMI0001.0005     
    erhält, wenn man den     Äthylester    des     2-Diazo-          4-earbonsäure-4'-methyl-1    .     1'-dipher)ylsulfons     mit dem     4-Chloranilid    der     2.3-Oxynapthoe-          säure    kuppelt.  



  Der so erhaltene Farbstoff bildet ein       orangebraunes    Pulver. Auf geeigneten Sub  straten, wie zum Beispiel Baumwolle, Wolle,  Kunstseide, hergestellt, färbt er diese in  leuchtenden, sehr echten orangen Tönen.  



  <I>Beispiel:</I>  29,7 Teile     2.3-Oxynaphthoesäure-4'-chlor-          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        Äthyl-          ester    des     2-Amino-4-ear#bonsäure-4'-metbyl-          1.1'-diphenylsulfons    enthält und mit Essig  säure angesäuert wurde, eingetragen. Der  gebildete     Farbstoff    fällt sofort aus. Er wird  filtriert, gewaschen und getrocknet.



      Additional patent to main patent No. 1'l5031. Process for the production 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-diazo-4-carboxylic acid-4'-methyl-1. 1'-dipher) ylsulfone couples with the 4-chloroanilide of 2,3-oxynapthoic acid.



  The dye thus obtained forms an orange-brown powder. Manufactured on suitable substrates, such as cotton, wool, rayon, for example, he dyes them in bright, very real orange tones.



  <I> Example: </I> 29.7 parts of 2,3-oxynaphthoic acid-4'-chloroanilide are dissolved in 2000 parts of water and 60 parts of 30% sodium hydroxide solution. This solution is added to an aqueous solution containing 31.9 parts of diazotized ethyl ester of 2-amino-4-ear # bonsäure-4'-methyl-1.1'-diphenyl sulfone and 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 EMI0002.0001 dadurch gekennzeichnet, dass man den Ätbyl- ester des 2-Diazo-4-carbonsäure-4'-methyl- 1.1'-diphenyIsulfons mit dem 4-Chloranilid der 2.3-Oxynaphthoesäure kuppelt. Der so erhaltene Farbstoff bildet ein orangebraunes Pulver. Auf geeigneten Sub- straten, wie zum Beispiel Baumwolle, Wolle, Kunstseide, hergestellt, färbt er diese in leuchtenden, sehr echten orangen Tönen. PATENT CLAIM: Process for the production of an azo dye of the formula EMI0002.0001 characterized in that the ethyl ester of 2-diazo-4-carboxylic acid 4'-methyl-1.1'-diphenyl sulfone is coupled with the 4-chloroanilide of 2.3-oxynaphthoic acid. The dye thus obtained forms an orange-brown powder. Produced on suitable substrates such as cotton, wool, artificial silk, he dyes them in bright, very real orange tones.
CH177839D 1934-01-30 1934-01-30 Process for the production of a new azo dye. CH177839A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH177839T 1934-01-30
CH175031T 1934-01-30

Publications (1)

Publication Number Publication Date
CH177839A true CH177839A (en) 1935-06-15

Family

ID=25719602

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177839D CH177839A (en) 1934-01-30 1934-01-30 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH177839A (en)

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