CH189044A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH189044A
CH189044A CH189044DA CH189044A CH 189044 A CH189044 A CH 189044A CH 189044D A CH189044D A CH 189044DA CH 189044 A CH189044 A CH 189044A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
monoazo dye
pyrazolone
anthranilic acid
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH189044A publication Critical patent/CH189044A/en

Links

Landscapes

  • Coloring (AREA)

Description

  

      Verfahren    zur Herstellung eines     Honoazofarbstoffes.       Gemäss dem im Hauptpatent beschriebenen  Verfahren erhält man einen Wolle in echten  Tönen anfärbenden     Azofarbstoff,    wenn man       Anthranilsäure    dianotiert und die     Diazover-          bindung    mit einem     Pyrazolon    kuppelt, wel  ches in der     1-Stellung    durch einen     Phenyl-          rest    substituiert ist, der noch durch einen       Sulfamidopbeiiylrest    weiter substituiert ist.  



  Wie nun weiter gefunden wurde, erhält  man einen Farbstoff von ganz ähnlichen  Eigenschaften, wenn man     Anthranilsäure     dianotiert und die     Diazoverbindung    mit dem       Pyrazolon    der nachstehenden Formel kombi  niert  
EMI0001.0015     
    <I>Beispiel:

  </I>    137 Teile     Anthranilsäure    werden in der  üblichen Weise dianotiert und in     sodaalkali-          scher        Lösung    kombiniert mit 466 Teilen eines       Pyrazolons    nachstehender Formel  
EMI0001.0021     
    Der erhaltene Farbstoff gibt nach dem Ein  badchromverfahren auf Wolle     rotstichige     Gelbfärbungen von ausgezeichneter Gesamt  echtheit.



      Process for the preparation of a honoazo dye. According to the process described in the main patent, an azo dye that dyes wool in real shades is obtained if anthranilic acid is dianotized and the diazo compound is coupled with a pyrazolone, which is substituted in the 1-position by a phenyl radical which is also substituted by a sulfamidopbeiiyl radical is further substituted.



  As has now been found further, a dye with very similar properties is obtained if anthranilic acid is dianotized and the diazo compound is combined with the pyrazolone of the formula below
EMI0001.0015
    <I> example:

  137 parts of anthranilic acid are dianotized in the usual way and combined in a soda-alkaline solution with 466 parts of a pyrazolone of the formula below
EMI0001.0021
    The dye obtained gives reddish yellow colorations of excellent overall fastness to wool by the bath chrome process.

Claims (1)

PATENTANSPRÜCH Verfahren zur Herstellung eines Mono- a9ofarbstoffes, dadurch gekennzeichnet, dass man Anthranilsäure diazotiert und die Diazo- verbindung mit dem Pyrazolon der nach stehenden Formel kuppelt EMI0002.0006 Der Farbstoff färbt Wolle nach dem Ein badchromverfahren in echten rotstichig gel ben Tönen an. PATENT CLAIM A process for the production of a mono-α9o dye, characterized in that anthranilic acid is diazotized and the diazo compound is coupled with the pyrazolone of the formula below EMI0002.0006 The dye stains wool in real reddish-yellow tones using the chrome-bathing process.
CH189044D 1934-06-20 1935-05-29 Process for the preparation of a monoazo dye. CH189044A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE189044X 1934-06-20
CH185147T 1935-05-29

Publications (1)

Publication Number Publication Date
CH189044A true CH189044A (en) 1937-01-31

Family

ID=25721160

Family Applications (1)

Application Number Title Priority Date Filing Date
CH189044D CH189044A (en) 1934-06-20 1935-05-29 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH189044A (en)

Similar Documents

Publication Publication Date Title
CH189044A (en) Process for the preparation of a monoazo dye.
CH189048A (en) Process for the preparation of a monoazo dye.
CH189042A (en) Process for the preparation of a monoazo dye.
CH189053A (en) Process for the preparation of a monoazo dye.
CH189041A (en) Process for the preparation of a monoazo dye.
CH189043A (en) Process for the preparation of a monoazo dye.
CH189049A (en) Process for the preparation of a monoazo dye.
CH189045A (en) Process for the preparation of a monoazo dye.
CH189050A (en) Process for the preparation of a monoazo dye.
CH189051A (en) Process for the preparation of a monoazo dye.
CH189047A (en) Process for the preparation of a monoazo dye.
CH222699A (en) Process for the preparation of a monoazo dye.
CH222693A (en) Process for the preparation of a monoazo dye.
CH189052A (en) Process for the preparation of a monoazo dye.
CH189046A (en) Process for the preparation of a monoazo dye.
CH177821A (en) Process for the preparation of an o-oxyazo dye.
CH190034A (en) Process for the preparation of an azo dye.
CH183458A (en) Process for the preparation of an azo dye.
CH222694A (en) Process for the preparation of a monoazo dye.
CH164738A (en) Process for the production of a new azo dye.
CH222692A (en) Process for the preparation of a monoazo dye.
CH235458A (en) Process for the preparation of a water-soluble monoazo dye.
CH187922A (en) Process for the preparation of an insoluble azo dye.
CH170927A (en) Process for the preparation of an azo dye.
CH170928A (en) Process for the preparation of an azo dye.