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CH179334A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH179334A
CH179334A CH179334DA CH179334A CH 179334 A CH179334 A CH 179334A CH 179334D A CH179334D A CH 179334DA CH 179334 A CH179334 A CH 179334A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
dye
azo
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 CH179334A publication Critical patent/CH179334A/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)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 176922.    Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    der Formel  
EMI0001.0004     
    erhält, wenn man den     2-Diazo-4-acetyl-1.1'-          diphenyläthermit    dem 2 .     3-Oxyriaphthoesäure-          2'-methyl-4'-methoxyanilid    kuppelt. Der so  erhaltene Farbstoff bildet ein rotes Pulver.  Auf geeigneten Substraten, wie zum Bei  spiel Baumwolle, Wolle, Kunstseide herge  stellt, färbt er diese in leuchtenden, sehr  echten roten Tönen.  



  <I>Beispiel:</I>  24 Teile     2-Ainirro-4-acetyl-1.1'-diphenyl-          äther    werden in üblicher Weise     diazotiert.       Die erhaltene klare     Diazolösung    wird in eine  Lösung, bestehend aus 30,7 Teilen 2.     3-Oxy-          naphthoesäure-2'-methyl-4'-methoxyanilid,    45  Teilen 30     o/oiger        Natriumhydroxydlösung,    15  Teilen Natriumkarbonat und 2000 Teilen  Wasser eingetragen. Der gebildete     Farbstoff     fällt sofort aus. Der rote Niederschlag wird  filtriert, gewaschen und getrocknet.



      Additional patent to main patent no. 176922. Process for the production of a new azo dye. It has been found that a new azo dye of the formula
EMI0001.0004
    obtained when the 2-diazo-4-acetyl-1.1'-diphenyl ether with the 2. 3-oxyriaphthoic acid-2'-methyl-4'-methoxyanilide couples. The dye thus obtained forms a red powder. On suitable substrates, such as cotton, wool, rayon, for example, he dyes them in bright, very real red tones.



  <I> Example: </I> 24 parts of 2-amino-4-acetyl-1.1'-diphenyl ether are diazotized in the usual way. The clear diazo solution obtained is introduced into a solution consisting of 30.7 parts of 2,3-oxynaphthoic acid-2'-methyl-4'-methoxyanilide, 45 parts of 30% sodium hydroxide solution, 15 parts of sodium carbonate and 2000 parts of water. The dye formed precipitates immediately. The red precipitate is filtered, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes der Formel EMI0001.0020 dadurch gekennzeichnet, dass man den 2-Di- azo-4-aeetyl-1.1'-diphenyläther mit dem 2.3- Oxynaphthoesäure-2'-methyl-4'-methoxyanilid kuppelt. Der so erhaltene Farbstoff bildet ein rotes Pulver. Auf geeigneten Substraten, wie zum Beispiel Baumwolle, Wolle, Kunst- Seide hergestellt, färbt er diese in leuchten den, sehr echten roten Tönen. PATENT CLAIM: Process for the production of an azo dye of the formula EMI0001.0020 characterized in that the 2-di-azo-4-aeetyl-1.1'-diphenyl ether is coupled with the 2.3-oxynaphthoic acid 2'-methyl-4'-methoxyanilide. The dye thus obtained forms a red powder. Produced on suitable substrates such as cotton, wool, artificial silk, he dyes them in bright, very real red tones.
CH179334D 1934-05-19 1934-05-19 Process for the production of a new azo dye. CH179334A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH176922T 1934-05-19
CH179334T 1934-05-19

Publications (1)

Publication Number Publication Date
CH179334A true CH179334A (en) 1935-08-31

Family

ID=25719903

Family Applications (1)

Application Number Title Priority Date Filing Date
CH179334D CH179334A (en) 1934-05-19 1934-05-19 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH179334A (en)

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