CH198320A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH198320A
CH198320A CH198320DA CH198320A CH 198320 A CH198320 A CH 198320A CH 198320D A CH198320D A CH 198320DA CH 198320 A CH198320 A CH 198320A
Authority
CH
Switzerland
Prior art keywords
azo dye
production
new azo
new
dye
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 CH198320A publication Critical patent/CH198320A/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
    • C09B29/32—Monoazo dyes prepared by diazotising and coupling from coupling components containing a reactive methylene group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbatoff    erhält, wenn man     diazotiertes          1-Amino-2-methyl-4-nitrobenzol    mit dem       Arylid,    das erhalten wird durch Kondensieren  von     5-Aminophenyl-pseudo-azimidobenzol    mit       Acetessigester,    vereinigt.  



  Der neue     @    Farbstoff bildet ein gelbes, in  Wasser unlösliches Pulver.     Auf    geeigneten  Substraten, wie z. B. Baumwolle, hergestellt,  färbt er diese in echten gelben Tönen.    <I>Beispiel:</I>    15,2 Teile     1-Amino-2-methyl-4-nitrobenzol     werden wie üblich     diazotiert        Lind    in eine  Lösung von 29,4 Teilen des Kondensations  produktes aus     5-Aminophenyl-pseudo-azimido-          benzol    mit     Acetessigester,    100 Teilen Natrium  hydroxydlösung von<B>360</B> Bö,<B>16</B> Teilen Na-         triumacetat    und 2000 Teilen Wasser einge  tragen.

   Der gebildete gelbe     Farbstoff    fällt  sofort aus. Er wird filtriert, und getrocknet.



  Process for the production of a new azo dye. It has been found that a new azo carbate is obtained when diazotized 1-amino-2-methyl-4-nitrobenzene is combined with the arylide, which is obtained by condensing 5-aminophenyl-pseudo-azimidobenzene with acetoacetic ester.



  The new @ dye forms a yellow, water-insoluble powder. On suitable substrates, such as. B. cotton, he dyes them in real yellow tones. <I> Example: </I> 15.2 parts of 1-amino-2-methyl-4-nitrobenzene are diazotized as usual and in a solution of 29.4 parts of the condensation product of 5-aminophenyl-pseudo-azimidobenzene with acetoacetic ester, 100 parts of sodium hydroxide solution of <B> 360 </B> Bo, <B> 16 </B> parts of sodium acetate and 2000 parts of water.

   The yellow dye formed precipitates immediately. It is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 1-Amino-2-methyl-4-nitro- benzol mit dem Arylid, das erhalten wird durch Kondensieren von 5-Aminophenyl- pseudo-azimidobenzol mit Acetessigester ver einigt. Der neue Farbstoff bildet ein gelbes, in Wasser unlösliches Pulver. Auf geeigneten Substraten, wie z. B. Baumwolle, hergestellt, färbt er diese in echten gelben Tönen. PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that diazotized 1-amino-2-methyl-4-nitrobenzene is combined with the arylide obtained by condensing 5-aminophenyl-pseudo-azimidobenzene with acetoacetic ester. The new dye forms a yellow powder that is insoluble in water. On suitable substrates, such as. B. cotton, he dyes them in real yellow tones.
CH198320D 1936-07-14 1936-07-14 Process for the production of a new azo dye. CH198320A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH198320T 1936-07-14
CH195072T 1936-07-14

Publications (1)

Publication Number Publication Date
CH198320A true CH198320A (en) 1938-06-15

Family

ID=25722722

Family Applications (1)

Application Number Title Priority Date Filing Date
CH198320D CH198320A (en) 1936-07-14 1936-07-14 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH198320A (en)

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