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CH246190A - Process for the preparation of a new acidic anthraquinone dye. - Google Patents

Process for the preparation of a new acidic anthraquinone dye.

Info

Publication number
CH246190A
CH246190A CH246190DA CH246190A CH 246190 A CH246190 A CH 246190A CH 246190D A CH246190D A CH 246190DA CH 246190 A CH246190 A CH 246190A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
anthraquinone dye
blue
new acidic
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag 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 Ag Sandoz filed Critical Ag Sandoz
Publication of CH246190A publication Critical patent/CH246190A/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
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/32—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
    • C09B1/34—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated
    • C09B1/343—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated only sulfonated in the anthracene nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 242846.    Verfahren zur Herstellung eines neuen     sauren        Anthrachinonfarbstoffes.       Das vorliegende Patent betrifft ein Ver  fahren zur Herstellung eines sauren     Anthra-          chinonfarbstoffes    und     ist    dadurch gekenn  zeichnet, dass man auf     1-Amino-4-(2'6'-dime-          thyl    -     4'-methoxyphenylamino)    -     anthrachin        on-          2-sulfonsäure    Brom einwirken lässt.

      <I>Beispiel:</I>  20 Teile 1-amino-4-(2'6'-dimethyl-4'       methoxyphenylamino)-anthrachinon-2-sulfon-          saures    Natrium werden bei     10-25         in    120  Teilen     Schwefelsäuremonohydrat    gelöst. Hier  auf werden unter gutem Rühren bei     0-ä0 ,     vorzugsweise bei 10-20 , 6,9     Teile    Brom  langsam zulaufen gelassen. Nach 10-14  Stunden erhöht man die Temperatur für  3 Stunden auf 60 , worauf die Reaktions  masse auf Eis und Wasser gegossen wird.

    Der ausgeschiedene Farbstoff wird     abfil-          triert,    in     3%iger        Kochsalzlösung    verrührt,  neutralisiert, nochmals filtriert und ge  trocknet.  



  Der neue Farbstoff ist ein blaues     Pulver,     das Wolle mit blauen Tönen färbt. In Schwe  felsäure löst sich der Farbstoff blau, und er       besitzt    die folgende Formel:  
EMI0001.0026     




      Additional patent to main patent no. 242846. Process for the production of a new acidic anthraquinone dye. The present patent relates to a process for the production of an acidic anthraquinone dye and is characterized in that 1-amino-4- (2'6'-dimethyl - 4'-methoxyphenylamino) - anthraquinone 2- sulfonic acid bromine to act.

      <I> Example: </I> 20 parts of 1-amino-4- (2'6'-dimethyl-4 'methoxyphenylamino) -anthraquinone-2-sulfonic acid sodium are dissolved at 10-25 in 120 parts of sulfuric acid monohydrate. Here on, 6.9 parts of bromine are allowed to run in slowly at 0-0, preferably at 10-20, with thorough stirring. After 10-14 hours, the temperature is increased to 60 for 3 hours, whereupon the reaction mass is poured onto ice and water.

    The precipitated dye is filtered off, stirred in 3% sodium chloride solution, neutralized, filtered again and dried.



  The new dye is a blue powder that dyes wool with blue tones. The dye dissolves blue in sulfuric acid and has the following formula:
EMI0001.0026

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Anthrachinonfarbstoffes, dadurch gekenn zeichnet, dass man auf 1-Amino-4-(2'6'-dime- thyl - 4'-methoxyphenylamino) - anthrachinon- 2-sulfonsäure Brom einwirken lässt. Der neue Farbstoff ist ein blaues. Pulver, das Wälle mit blauen Tönen färbt. In Schwe felsäure löst sich der Farbstoff blau, und er besitzt die folgende Formel: EMI0001.0036 PATENT CLAIM: Process for the production of an acidic anthraquinone dye, characterized in that 1-amino-4- (2'6'-dimethyl-4'-methoxyphenylamino) -anthraquinone-2-sulfonic acid is allowed to act on bromine. The new dye is a blue one. Powder coloring walls with blue tones. The dye dissolves blue in sulfuric acid and has the following formula: EMI0001.0036
CH246190D 1945-02-12 1945-02-12 Process for the preparation of a new acidic anthraquinone dye. CH246190A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH242846T 1945-02-12
CH246190T 1945-02-12

Publications (1)

Publication Number Publication Date
CH246190A true CH246190A (en) 1946-12-15

Family

ID=25728766

Family Applications (1)

Application Number Title Priority Date Filing Date
CH246190D CH246190A (en) 1945-02-12 1945-02-12 Process for the preparation of a new acidic anthraquinone dye.

Country Status (1)

Country Link
CH (1) CH246190A (en)

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