CH202746A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH202746A
CH202746A CH202746DA CH202746A CH 202746 A CH202746 A CH 202746A CH 202746D A CH202746D A CH 202746DA CH 202746 A CH202746 A CH 202746A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
dye
red
aminobenzene
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 CH202746A publication Critical patent/CH202746A/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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Description

  

  verfahren zur Herstellung eines     Azofarbstoffes.       Es     wurde        gefunden,    dass man einen     Azo-          farbstoff    erhält,     wenn    man die     Diazoverbin-          dung    des     1-Aminobenzol-2-methylsulfons    mit       (2-1Vlethogy-    5 -     methyl    - 2'-     sülfonsäure    -4'-     ace-          tylamino)-diphenylamin    der Formel  
EMI0001.0015     
    vereinigt.

   Der neue Farbstoff bildet     ein.          dunkles    Pulver, das sich in Wasser mit roter  Farbe löst und das Wolle und Seide aus sau  rem Bade in rotorangen Tönen färbt.  



       Beispiel:     171 Teile     1-Amin.obenzol-2-methylsulfon     werden     diazotiert    und in die     mineralsaure     Lösung dieser     Diazoverbindung    die Lösung  des     Natriumsalzes    aus 350     Teilen    (2     -11Ie-          thogy    - 5 -     methyl    - 2' -     sulf        onsäure-    4' -     acetyl-          amino)

      -     diphenylamin        eingetragen.    Nachdem  die     Farbstoffbildung    beendet ist, wird     abfil-          triert,    der Farbstoff in Wasser suspendiert    und durch Verrühren mit     einem    Alkali neu  tral gestellt. Der Farbstoff wird eventuell  durch Zusatz     eines    Salzes ausgeschieden, ab  filtriert und getrocknet.



  process for the production of an azo dye. It has been found that an azo dye is obtained if the diazo compound of 1-aminobenzene-2-methylsulphone is used with (2-1Vlethogy-5-methyl-2'-sulphonic acid -4'-acetylamino) -diphenylamine the formula
EMI0001.0015
    united.

   The new dye forms a. dark powder that dissolves in water with a red color and colors the wool and silk from acid baths in red-orange tones.



       Example: 171 parts of 1-aminobenzene-2-methylsulfone are diazotized and in the mineral acid solution of this diazo compound the solution of the sodium salt of 350 parts (2 -11Iethogy - 5 - methyl - 2 '- sulfonic acid - 4' - acetyl - amino)

      - entered diphenylamine. When the formation of the dye has ended, it is filtered off, the dye is suspended in water and neutralized by stirring with an alkali. The dye is possibly precipitated by adding a salt, filtered off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man die Diazoverbindung des 1- Aminobenzol - 2 - me- thylsufons mit (2-1VIethogy-5-methyl-2'-sul- f onsäure - 4' - acetylamino) - diphenylamin der Formel EMI0001.0054 vereinigt. PATENT CLAIM: Process for the production of an azo dye, characterized in that the diazo compound of 1-aminobenzene - 2 - methylsulfon is mixed with (2-1VIethogy-5-methyl-2'-sulfonic acid - 4 '- acetylamino) - diphenylamine of the formula EMI0001.0054 united. Der neue Farbstoff bildet ein dunkles Pulver, das sich in Wasser mit roter Farbe löst und, das Wolle und Seide aus saurem Bade in rotorangen Tönen färbt. The new dye forms a dark powder which dissolves in water with a red color and which dyes wool and silk from an acid bath in red-orange tones.
CH202746D 1937-03-15 1937-03-15 Process for the preparation of an azo dye. CH202746A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH202746T 1937-03-15
CH200063T 1938-11-09

Publications (1)

Publication Number Publication Date
CH202746A true CH202746A (en) 1939-01-31

Family

ID=25723419

Family Applications (1)

Application Number Title Priority Date Filing Date
CH202746D CH202746A (en) 1937-03-15 1937-03-15 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH202746A (en)

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