CH270543A - Process for the preparation of a brown acid dye of the anthraquinone series. - Google Patents

Process for the preparation of a brown acid dye of the anthraquinone series.

Info

Publication number
CH270543A
CH270543A CH270543DA CH270543A CH 270543 A CH270543 A CH 270543A CH 270543D A CH270543D A CH 270543DA CH 270543 A CH270543 A CH 270543A
Authority
CH
Switzerland
Prior art keywords
water
brown
dye
anthraquinone series
acid dye
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 CH270543A publication Critical patent/CH270543A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/02—Benzathrones
    • C09B3/06—Preparation from starting materials already containing the benzanthrone nucleus
    • C09B3/10—Amino derivatives

Landscapes

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

Description

  

  Verfahren zur Herstellung eines braunen Säurefarbstoffes der     Anthrachinonreihe:       Das vorliegende Patent betrifft ein Ver  fahren zur Herstellung eines braunen Säure  farbstoffes der     Anthraehinonreihe    und ist     da-          dureli        gekennzeielinet,    dass man     1-Amino-3-          plienoiyanthrachinon    mit     Bz.1-Brombenzan-          thron    kondensiert, und das Kondensationspro  (lnkt mit einem     sulfonierenden    Mittel bis zum  Eintritt der Wasserlöslichkeit behandelt.  



  Im nachfolgenden Beispiel sind Teile     Gre-          wiehtsteile.     



  <I>Beispiel:</I>  11.,6 Teile     1-Amino-3-phenoxyanthrachi-          non,        11,4-    Teile     Bz.1-Brombenzanthron,    3,0  Teile wasserfreies     Kaliumacetat,    0,3 Teile       Kupferchlorür    werden mit 100 Teilen     wasser-          Freieni    Nitrobenzol während 6 Stunden bei  2000 verrührt. In Alkohol gegossene Proben  ergeben zuletzt eine braune Suspension in       Farbloser    Lösung. Man verdünnt bei 1000 mit  100 Teilen Alkohol, saugt den Niederschlag  ab, wäscht mit. Alkohol, dann mit Wasser und  trocknet. Die erhaltene Base löst sich in  Schwefelsäure mit schwarzvioletter Farbe.  



  5 Teile der     Farbstoffbase    werden in 30  Teilen     Sehwefelsäiiremonohydrat    gelöst, mit



  Process for the production of a brown acid dye of the anthraquinone series: The present patent relates to a process for the production of a brown acid dye of the anthraquinone series and is characterized in that 1-amino-3-plienoiyanthraquinone is condensed with Bz.1-bromobenzanthrone, and the condensation process is treated with a sulfonating agent until solubility in water occurs.



  In the example below, parts are weight parts.



  <I> Example: </I> 11., 6 parts of 1-amino-3-phenoxyanthraquinone, 11.4 parts of Bz.1-bromobenzanthrone, 3.0 parts of anhydrous potassium acetate, 0.3 parts of copper chloride are mixed with 100 Parts of water-free nitrobenzene stirred at 2000 for 6 hours. Samples poured into alcohol ultimately result in a brown suspension in a colorless solution. It is diluted at 1000 with 100 parts of alcohol, the precipitate is filtered off with suction and washed with. Alcohol, then water and dry. The base obtained dissolves in sulfuric acid with a black-violet color.



  5 parts of the dye base are dissolved in 30 parts of sulfuric acid monohydrate, with

Claims (1)

15 Teilen rauchender Schwefelsäure von 27% Gehalt versetzt und 1 Stunde bei gewöhnlicher Temperatur verrührt. Eine in Wasser ge zogene Probe ist nun kalt klar löslich. Man fällt in eine 1.5 %ige Kochsalzlösung, saugt ab und stellt, den Farbstoff in bekannter Weise neutral. Der neue Farbstoff ist ein graues Pulver, das sich in Wasser mit brauner Farbe löst. 15 parts of fuming sulfuric acid of 27% content were added and the mixture was stirred for 1 hour at ordinary temperature. A sample drawn in water is now clearly soluble in cold water. It falls into a 1.5% saline solution, sucks off and sets the dye neutral in a known manner. The new dye is a gray powder that dissolves in water with a brown color. Er färbt Wolle in schönen rotbraunen Tönen von vorzüglicher Walk- und Lichtechtheit. PATENTANSPRUCH: Verfahren zur Herstellung eines braunen S <B>1</B> äurefarbstoffes der Anthrachinonreihe, da- durch gekennzeichnet, dass man 1-Amino-3- phenoxyanthrachinon mit Bz.l-Brombenzan- thron kondensiert und das Kondensationspro dukt mit einem sulfonierenden Mittel bis zum Eintritt der Wasserlöslichkeit behandelt. It dyes wool in beautiful reddish-brown shades of excellent mill and lightfastness. PATENT CLAIM: Process for the production of a brown S <B> 1 </B> acid dye of the anthraquinone series, characterized in that 1-amino-3-phenoxyanthraquinone is condensed with Bz.l-bromobenzanthrone and the condensation product with a sulfonating one Medium treated until solubility in water occurs. Der neue Farbstoff ist ein graues Pulver, das sich in Wasser mit brauner Farbe löst. Er färbt Wolle in schönen rotbraunen Tönen von vorzüglicher Walk- und Lichtechtheit. The new dye is a gray powder that dissolves in water with a brown color. It dyes wool in beautiful reddish-brown shades of excellent mill and lightfastness.
CH270543D 1948-12-28 1948-12-28 Process for the preparation of a brown acid dye of the anthraquinone series. CH270543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH270543T 1948-12-28

Publications (1)

Publication Number Publication Date
CH270543A true CH270543A (en) 1950-09-15

Family

ID=4477795

Family Applications (1)

Application Number Title Priority Date Filing Date
CH270543D CH270543A (en) 1948-12-28 1948-12-28 Process for the preparation of a brown acid dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH270543A (en)

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