CH261857A - Process for the preparation of a copperable disazo dye. - Google Patents

Process for the preparation of a copperable disazo dye.

Info

Publication number
CH261857A
CH261857A CH261857DA CH261857A CH 261857 A CH261857 A CH 261857A CH 261857D A CH261857D A CH 261857DA CH 261857 A CH261857 A CH 261857A
Authority
CH
Switzerland
Prior art keywords
preparation
mole
disazo dye
yellow
carboxylic acid
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH261857A publication Critical patent/CH261857A/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)
  • Coloring (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 256520.         Verfahren    zur Herstellung eines kupferbaren     Disazofarbstoffes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines kupferbaren       Disazofarbstoffes.    Das Verfahren ist dadurch  gekennzeichnet, dass man in beliebiger Rei  henfolge ein     31o1        4,4'-Diacetoacetylamino-3,3'-          dimetlioxy-1,

  1'-diplienyl    mit einem     Mol        diazo-          tierter    2 -     Amino        -1-oxy        -benzol-4-earbonsäure          ilnd    mit einem     Mol        diazotierter        2-Amino-ben-          zol-l-carbonsäure    kuppelt.  



  Der neue Farbstoff stellt ein     gelbbraunes     Pulver dar, das sich in Wasser und konzen  trierter Schwefelsäure mit gelber Farbe löst  und     Zellulosefasern        nachgekupfert    gelb färbt.    <I>Beispiel:</I>  15,3 Teile     2-Amino-l-oxybenzol-4-carbon-          säure    werden wie üblich     diazotiert    und bei 0  bis 50 mit einer     alkalischen    Lösung von 41,2  Teilen     4,4'-Diacetoacetylamino-3,3'-dimethoxy-          1.,1'-diphenyl    und 20 Teilen Soda gekuppelt.

    Die     Monoazofarbstofflösung    wird mit 10 Tei  len     Natriumbicarbonat    und mit der     Diazo-          niumverbindung        aus    13,7 Teilen     2-Amino-          benzol-l-earbonsäure    versetzt. Der fertiggebil  dete     Disazofarbstoff    der Formel  
EMI0001.0035     
    wird mit Kochsalz abgeschieden, filtriert und  getrocknet.



  <B> Additional patent </B> to main patent no. 256520. Process for the production of a copperable disazo dye. The present patent relates to a process for the preparation of a copperable disazo dye. The process is characterized in that a 31o1 4,4'-diacetoacetylamino-3,3'-dimetlioxy-1,

  1'-diplienyl with one mole of diazotized 2-amino-1-oxy-benzene-4-carboxylic acid and with one mole of diazotized 2-amino-benzene-1-carboxylic acid.



  The new dye is a yellow-brown powder that dissolves in water and concentrated sulfuric acid with a yellow color and, when copied, turns cellulose fibers yellow. <I> Example: </I> 15.3 parts of 2-amino-1-oxybenzene-4-carboxylic acid are diazotized as usual and at 0 to 50 with an alkaline solution of 41.2 parts of 4,4'-diacetoacetylamino -3,3'-dimethoxy-1., 1'-diphenyl and 20 parts of soda coupled.

    10 parts of sodium bicarbonate and the diazonium compound from 13.7 parts of 2-aminobenzene-1-carboxylic acid are added to the monoazo dye solution. The finished disazo dye of the formula
EMI0001.0035
    is precipitated with common salt, filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer baren Disazofarbstoffes, dadurch gekennzeich net, dass man in beliebiger Reihenfolge ein Mol 4,4' - Diacetoacety lamino-3,3'-dimethoxy- 1,1'-diphenyl mit einem Mol diazotierter 2- Amino-l-oxy-benzol-4-carbonsäure und mit einem Mol diazotierter 2-Amino-benzol-l-car- bonsäure kuppelt. PATENT CLAIM: Process for the preparation of a copper-ble disazo dye, characterized in that one mole of 4,4 '- diacetoacety lamino-3,3'-dimethoxy-1,1'-diphenyl with one mole of diazotized 2-amino l-oxy-benzene-4-carboxylic acid and coupled with one mole of diazotized 2-amino-benzene-l-carboxylic acid. Der neue Farbstoff stellt ein gelbbraunes Pulver dar, das sich in Wasser und konzen trierter Schwefelsäure mit gelber Farbe löst und Zellulosefasern nachgekupfert gelb färbt. The new dye is a yellow-brown powder that dissolves in water and concentrated sulfuric acid with a yellow color and, when copied, turns cellulose fibers yellow.
CH261857D 1947-05-02 1947-05-02 Process for the preparation of a copperable disazo dye. CH261857A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH261857T 1947-05-02
CH256520T 1948-08-31

Publications (1)

Publication Number Publication Date
CH261857A true CH261857A (en) 1949-05-31

Family

ID=25729990

Family Applications (1)

Application Number Title Priority Date Filing Date
CH261857D CH261857A (en) 1947-05-02 1947-05-02 Process for the preparation of a copperable disazo dye.

Country Status (1)

Country Link
CH (1) CH261857A (en)

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