CH202749A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH202749A
CH202749A CH202749DA CH202749A CH 202749 A CH202749 A CH 202749A CH 202749D A CH202749D A CH 202749DA CH 202749 A CH202749 A CH 202749A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
dye
ethogy
diphenylamine
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 CH202749A publication Critical patent/CH202749A/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)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     Azofarbstofes.       Es     wurde    gefunden, dass man     einen        Azo-          farbstoff    erhält, wenn man die     Diazoverbin-          dung    des     1-Amino-2,6-dichlor-4-nitrobenzols     mit     (2-Äthogy-5-metliyl-2'-sulfonsäure-4'-          chloracetylamino)-diphenylamin    der Formel  
EMI0001.0011     
         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 braunroten Tönen färbt.  



  <I>Beispiel:</I>  207     Teile        1-Amino-2,6-dichlor-4-nitroben-          zol    werden     diazotiert        und        in    die mineralsaure  Lösung dieser     Diazoverbindung    die Lösung  des     Natriumsalzes    aus 398 Teilen     (2-Äthogy-          5-methyl-2'-sulf        onsäure-4'-chloracetylamino)-          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 preparation of an azo dye. It has been found that an azo dye is obtained if the diazo compound of 1-amino-2,6-dichloro-4-nitrobenzene is used with (2-ethogy-5-methyl-2'-sulfonic acid-4'- chloroacetylamino) diphenylamine of the formula
EMI0001.0011
         united. The new dye forms a. dark powder that dissolves in water with a red color and dyes the wool and silk from acidic baths in brown-red tones.



  <I> Example: </I> 207 parts of 1-amino-2,6-dichloro-4-nitrobenzene are diazotized and the solution of the sodium salt of 398 parts (2-ethogy-5-methyl -2'-sulfonic acid-4'-chloroacetylamino) - diphenylamine entered:

   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-Amino-2,6-dichlor-4- nitrobenzols mit (2 -Äthogy- 5 -methyl -2'- sul- f onsäure - 4'- chloracetylamino) Claim: Process for the production of an azo dye, characterized in that the diazo compound of 1-amino-2,6-dichloro-4-nitrobenzene is mixed with (2-ethogy-5-methyl-2'-sulphonic acid - 4 '- chloracetylamino) - diphenylamin der Formel EMI0001.0049 vereinigt. Der neue Farbstoff bildet ein dunkles Pulver, das sich in Wasser mit roter Farbe löst und das Wolle und Seide aus saurem Bade in braunroten Tönen färbt. - diphenylamine of the formula EMI0001.0049 united. The new dye forms a dark powder that dissolves in water with a red color and dyes the wool and silk from acid baths in brown-red tones.
CH202749D 1937-03-15 1937-03-15 Process for the preparation of an azo dye. CH202749A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH202749T 1937-03-15
CH200063T 1938-11-09

Publications (1)

Publication Number Publication Date
CH202749A true CH202749A (en) 1939-01-31

Family

ID=25723422

Family Applications (1)

Application Number Title Priority Date Filing Date
CH202749D CH202749A (en) 1937-03-15 1937-03-15 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH202749A (en)

Similar Documents

Publication Publication Date Title
CH202749A (en) Process for the preparation of an azo dye.
CH202743A (en) Process for the preparation of an azo dye.
CH202746A (en) Process for the preparation of an azo dye.
CH202747A (en) Process for the preparation of an azo dye.
CH202748A (en) Process for the preparation of an azo dye.
CH202745A (en) Process for the preparation of an azo dye.
CH202741A (en) Process for the preparation of an azo dye.
CH202750A (en) Process for the preparation of an azo dye.
CH202744A (en) Process for the preparation of an azo dye.
CH200063A (en) Process for the preparation of an azo dye.
CH202742A (en) Process for the preparation of an azo dye.
CH209081A (en) Process for the preparation of an azo dye.
CH202751A (en) Process for the preparation of an azo dye.
CH218078A (en) Process for the production of a new azo dye.
CH222693A (en) Process for the preparation of a monoazo dye.
CH180293A (en) Process for the production of a new dye.
CH235461A (en) Process for the preparation of a water-soluble monoazo dye.
CH162740A (en) Process for the production of a new substantive azo dye.
CH180582A (en) Process for the production of a new dye.
CH236997A (en) Process for the production of a new azo dye.
CH215825A (en) Process for the preparation of an azo dye.
CH162465A (en) Process for the production of a new azo dye.
CH202740A (en) Process for the preparation of an azo dye.
CH229358A (en) Process for the preparation of a trisazo dye.
CH111497A (en) Process for the preparation of an azo dye.