CH188217A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH188217A
CH188217A CH188217DA CH188217A CH 188217 A CH188217 A CH 188217A CH 188217D A CH188217D A CH 188217DA CH 188217 A CH188217 A CH 188217A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
dye
brown
toluenesulfamino
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals Sandoz
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 Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH188217A publication Critical patent/CH188217A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium
    • 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
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • 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
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/44—Preparation of azo dyes from other azo compounds by substituting amine groups for hydroxyl groups or hydroxyl groups for amine groups; Desacylation of amino-acyl groups; Deaminating

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 184306.    Verfahren zur Darstellung eines     Azofarbstoffes.       Das vorliegende Verfahren betrifft die  Darstellung eines     metallkomplegbildenden          Azofarbstoffes        und    ist dadurch gekennzeich  net,

   dass man die     Diazoverbindung    von     2-Di-          p-toluölsulfamino-l-aminobenzol-5-sulfosäure     mit     1-Acetylamino-7-ogynaphtalin    kuppelt  und aus dem so erhaltenen Farbstoff     eine          Toluolsulfogruppe    durch Behandeln mit     ver-          seifenden    Mitteln abspaltet.

      <I>Beispiel:</I>    49,6     Teile        2-Di-p-toluolsulfamino-l-amino-          benzol-5-sulfosäure    werden     diazotiert    und     in     alkalischem Medium mit 20,1 Teilen     1-Ace-          tylamino-7-ogynaphtalin    gekuppelt. Nach  dem Verseifen und Isolieren wird ein braun  violettes Pulver erhalten, welches Wolle aus  saurem Bade in braunroten Tönen färbt.    Durch     Nachchromieren    erfolgt Umschlag in  Schwarzblau.



      Additional patent to main patent No. 184306. Process for the preparation of an azo dye. The present process relates to the preparation of a metal complex-forming azo dye and is characterized by

   that the diazo compound of 2-di-p-toluenesulfamino-1-aminobenzene-5-sulfonic acid is coupled with 1-acetylamino-7-ogynaphthalene and a toluenesulfo group is split off from the dye thus obtained by treatment with soaping agents.

      <I> Example: </I> 49.6 parts of 2-di-p-toluenesulfamino-1-aminobenzene-5-sulfonic acid are diazotized and in an alkaline medium with 20.1 parts of 1-acetylamino-7-ogynaphthalene coupled. After saponification and isolation, a brown-violet powder is obtained which dyes wool from an acid bath in brown-red tones. After chrome plating, it is turned into black blue.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Azo- farbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 2-Di-p-toluolsulf- amino-l-aminobenzol-5-sulfosäure mit 1-Ace- tylamino-7-ogynaphthalin kuppelt und aus dem so erhaltenen Farbstoff eine Toluolsulfo- gruppe durch Behandeln mit verseifenden Mitteln abspaltet. PATENT CLAIM: Process for the preparation of an azo dye, characterized in that the diazo compound of 2-di-p-toluenesulfamino-1-aminobenzene-5-sulfonic acid is coupled with 1-acetylamino-7-ogynaphthalene and from the so The dye obtained splits off a toluenesulfo group by treatment with saponifying agents. Der Farbstoff stellt ein braunviolettes Pulver dar, welches Wolle aus saurem Bade in braunroten Tönen färbt. Durch. Nach- chromieren erfolgt Umschlag in Schwarzblau. The dye is a brown-violet powder, which dyes wool from an acid bath in brown-red tones. By. After chrome plating, the color is black and blue.
CH188217D 1935-07-18 1935-07-18 Process for the preparation of an azo dye. CH188217A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH184306T 1935-07-18
CH188217T 1935-07-18

Publications (1)

Publication Number Publication Date
CH188217A true CH188217A (en) 1936-12-15

Family

ID=25721001

Family Applications (1)

Application Number Title Priority Date Filing Date
CH188217D CH188217A (en) 1935-07-18 1935-07-18 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH188217A (en)

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