CH167173A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH167173A
CH167173A CH167173DA CH167173A CH 167173 A CH167173 A CH 167173A CH 167173D A CH167173D A CH 167173DA CH 167173 A CH167173 A CH 167173A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
dye
ethyl ester
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 CH167173A publication Critical patent/CH167173A/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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/153—Disazo dyes in which the coupling component is a bis-(aceto-acetyl amide) or a bis-(benzoyl-acetylamide)

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen     Azofarbstoff    der Formel  
EMI0001.0003     
    erhält, wenn man den     Äthylester    der     1-Diazo-          2-benzolcarbonsäure    mit dem     Di-(acetacetyl)-          o.        o'-tolidid    kuppelt.  



  Der so erhaltene     Farbstoff    stellt ein gelbes  Pulver dar. Auf geeigneten Substraten, wie  zum Beispiel Baumwolle, Wolle, Kunstseide,  hergestellt, färbt er diese in leuchtenden sehr  echten gelben Tönen.  



  <I>Beispiel:</I>  33 Teile     Äthylester    der     1-Amino-2-benzol-          aarbonsäure    werden wie üblich dianotiert und    in eine Lösung von 37,8 Teilen     Di-(acet-          acetyl)-o.        o'-tolidid,    100 Teilen Natrium  hydroxydlösung, 15 Teilen Soda und 2000  Teilen Wasser eingetragen. Der gebildete       Farbstoff    fällt sofort aus. Er wird filtriert,  gewaschen und getrocknet.



  Process for the production of a new azo dye. It has been found that a new azo dye of the formula
EMI0001.0003
    obtained when the ethyl ester of 1-diazo-2-benzenecarboxylic acid is coupled with the di- (acetacetyl) - o. o'-tolidide.



  The dye thus obtained is a yellow powder. Produced on suitable substrates such as cotton, wool, rayon, it dyes them in bright, very real yellow tones.



  <I> Example: </I> 33 parts of ethyl ester of 1-amino-2-benzene-carboxylic acid are dianotized as usual and poured into a solution of 37.8 parts of di- (acet-acetyl) -o. o'-tolidide, 100 parts of sodium hydroxide solution, 15 parts of soda and 2000 parts of water 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 Äthyl- ester der 1-Diazo-2-benzolcarbonsäure mit dem Di-(acetacetyl)-o. o'-tolidid kuppelt. Der so erhaltene Farbstoff bildet ein gelbes Pulver. Auf geeigneten Substraten, wie zum Beispiel Baumwolle, Wolle, Kunstseide, hergestellt, färbt er diese in leuchtenden sehr echten gelben Tönen. PATENT CLAIM: Process for the production of an azo dye of the formula EMI0002.0001 characterized in that the ethyl ester of 1-diazo-2-benzenecarboxylic acid with the di- (acetacetyl) -o. o'-tolidid domes. The dye thus obtained forms a yellow powder. Produced on suitable substrates such as cotton, wool, rayon, he colors them in bright, very real yellow tones.
CH167173D 1933-01-16 1933-01-16 Process for the production of a new azo dye. CH167173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH167173T 1933-01-16

Publications (1)

Publication Number Publication Date
CH167173A true CH167173A (en) 1934-02-15

Family

ID=4419627

Family Applications (1)

Application Number Title Priority Date Filing Date
CH167173D CH167173A (en) 1933-01-16 1933-01-16 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH167173A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558843A1 (en) * 1984-01-26 1985-08-02 Sandoz Sa MIXTURES OF AZO PIGMENTS, THEIR PREPARATION AND USE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558843A1 (en) * 1984-01-26 1985-08-02 Sandoz Sa MIXTURES OF AZO PIGMENTS, THEIR PREPARATION AND USE

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