CH195072A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH195072A
CH195072A CH195072DA CH195072A CH 195072 A CH195072 A CH 195072A CH 195072D A CH195072D A CH 195072DA CH 195072 A CH195072 A CH 195072A
Authority
CH
Switzerland
Prior art keywords
azo dye
production
new azo
new
amino
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 CH195072A publication Critical patent/CH195072A/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     Azofarbstofes.       Es     wurde        gefunden;    dass man     einen        neuen          Azofarbstoff        erhält,        wenn    man     diazotiertes          1-Amiuo-2-nitrobenzol    mit     dem        Arylid,

          das     erhalten     wird        durch        Kondensieren    von     5-          An7in0-        2-phenyl    -     pseudo    -     @az        imidobenzol    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>    13,8     Teile        .o-Nitranilin        werden.    wie     üblich          diazotiert    und     in        eine        Lösung    von 29,4 Tei  len des     Kondensationsproduktesaus        5-Amino-          2-phenyl-ps,euido-azimi@dobenzol        mit        Acetessig-          ester,        10;

  0    Teilen     Natriumhydrogyddösang     von 3<B>0</B>     B,6,    15     Teilen        Natriumacetat    und    2000     Teilen        Wasser        eingetragen.    Der gebil  dete gelbe Farbstoff fällt     sofort    aus. Er     wird     filtriert und .getrocknet.



  Process for the preparation of a new azo dye. It was found; that you get a new azo dye if you diazotized 1-Amiuo-2-nitrobenzene with the arylide,

          this is obtained by condensing 5-an7in0- 2-phenyl - pseudo - @az imidobenzene with acetoacetic ester, combined.



       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.

      <I> Example: </I> 13.8 parts of .o-nitroaniline will be. diazotized as usual and in a solution of 29.4 parts of the condensation product of 5-amino-2-phenyl-ps, euido-azimi @ dobenzene with acetoacetate, 10;

  0 parts of sodium hydrogen hydroxide of 3 0, 6, 15 parts of sodium acetate and 2000 parts of water were added. The yellow dye formed precipitates immediately. It is filtered and dried.

Claims (1)

PATENTANSPRUCH: VOrfahTen zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 1-Amino-2-nitrobenzol mit dem Arylid, das erhalten wird durch Kon densieren von. 5-Amino-2-phenyl-ps-eudo-azi- midobenzal mit Acetassigester, vereinigt. Der neue Farbstoff bildet eingelbes, PATENT CLAIM: PROCEDURES for the preparation of a new azo dye, characterized in that diazotized 1-amino-2-nitrobenzene with the arylide, which is obtained by condensing. 5-Amino-2-phenyl-ps-eudo-azimidobenzal with acetassigester, combined. The new dye forms yellow, in Wasser unlösliches Pulver. Auf -geeigneten Substraten, wie z. B. Baumwolle, hergestellt, färbt er diese in echten gelben Tönen. powder insoluble in water. On -suitable substrates, such as B. cotton, he dyes them in real yellow tones.
CH195072D 1936-07-14 1936-07-14 Process for the production of a new azo dye. CH195072A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH195072A true CH195072A (en) 1938-01-15

Family

ID=4439750

Family Applications (1)

Application Number Title Priority Date Filing Date
CH195072D CH195072A (en) 1936-07-14 1936-07-14 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH195072A (en)

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