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CH139652A - Process for the preparation of a vat dye of the anthanthrone series. - Google Patents

Process for the preparation of a vat dye of the anthanthrone series.

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Publication number
CH139652A
CH139652A CH139652DA CH139652A CH 139652 A CH139652 A CH 139652A CH 139652D A CH139652D A CH 139652DA CH 139652 A CH139652 A CH 139652A
Authority
CH
Switzerland
Prior art keywords
preparation
catalytically active
anthanthrone
vat dye
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH139652A publication Critical patent/CH139652A/en

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  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines     Küpenfarbstoffes    der     Anthanthronreihe.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Darstellung eines neuen       Küpenfarbstoffes    der     Anthanthronreihe,    da  durch gekennzeichnet, dass man 1     Mol        Di-          halogenanthanthron,wie    es durch     Halogenieren     von     Anthanthron    in     Oleum    erhalten werden  kann,

       finit    2     Mol        1-Benzoylamino-5-amino-          anthrachinon    bei     fäegenwart    von säurebin  denden Mitteln und katalytisch wirkenden       Substanzen    kondensiert.  



  Als Katalysatoren kann man zum Beispiel  geringe     Mengen    Kupfer oder seine Verbin  dungen und Salze verwenden,  <I>Beispiel:</I>  4,6 Gewichtsteile technisches     Dibrom-          anthanthron,    -hergestellt zum Beispiel durch  Brotnieren von     Anthanthron    in     Oleum,    wer  den mit 7 Gewichtsteilen     1-Benzoylamino-          5-amiiioanthachinon    in Gegenwart von 150  Gewichtsteilen Naphtalin, 3 Gewichtsteilen  wasserfreiem     Natriumacetat    und 0,5 Gewichts-    teilen Kupferacetat 4 bis 5 Stunden unter  Rühren zum Kochen erhitzt.

   Die etwas er  kaltete aber noch flüssige Schmelze wird     finit     heisser     Solventnaphta    oder einem ändern ge  eigneten Lösungsmittel verdünnt, abgesaugt,  mit heiler     Solventnaphta,    dann heissem Alko  hol nachgewaschen, der dunkle Rückstand  zur Entfernung der anorganischen Salze mit  verdünnter Salzsäure ausgekocht und ge  trocknet.  



  Man erhält so ein in kalter     konzentrieter     Schwefelsäure gelbbraun lösliches Produkt,  das aus stumpf weinroter     Küpe    Baumwolle  mit kräftig     grünstichig    grauen Tönen anfärbt.



  Process for the preparation of a vat dye of the anthanthrone series. The subject of the present patent is a process for the preparation of a new vat dye of the anthanthrone series, characterized in that 1 mol of dihalogenanthanthrone, as can be obtained by halogenating anthanthrone in oleum,

       finite 2 mol of 1-benzoylamino-5-amino-anthraquinone condensed in the presence of acid-binding agents and catalytically active substances.



  For example, small amounts of copper or its compounds and salts can be used as catalysts, <I> Example: </I> 4.6 parts by weight of technical dibromomanthanthrone, produced, for example, by kidneying anthanthrone in oleum Parts by weight of 1-benzoylamino-5-amiiioanthachinon in the presence of 150 parts by weight of naphthalene, 3 parts by weight of anhydrous sodium acetate and 0.5 parts by weight of copper acetate are heated to the boil for 4 to 5 hours with stirring.

   The slightly cold but still liquid melt is diluted with finite hot solvent naphtha or another suitable solvent, filtered off with suction, washed with solid solvent naphtha and then with hot alcohol, the dark residue is boiled with dilute hydrochloric acid to remove the inorganic salts and dried.



  This gives a yellow-brown soluble product in cold, concentrated sulfuric acid, which dyes cotton with strong greenish gray tones from a dull wine-red vat.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Küpenfarbstoftes der Antbanthronreihe, da durch gekennzeichnet, dass man 1 Mol Di- halogenanthanthron, wie es durch Halogenieren von Anthanthron in Oleum erhalten werden kann, mit 2 M91 x-Benzoylamino-5-amino, anthrachinon bei Gegenwart von säurebin denden. Mitteln und katalytisch wirkenden Substanzen kondensiert. PATENT CLAIM: Process for the preparation of a new vat dye of the antbanthrone series, characterized in that 1 mol of dihalogenanthanthrone, as can be obtained by halogenating anthanthrone in oleum, is mixed with 2 M91 x-benzoylamino-5-amino, anthraquinone in the presence of acid binding. Agents and catalytically active substances condensed. Der so erhaltene Farbstoff löst sich in konzentrierter Schwefelsäure mit gelbbrauner Farbe. Er färbt Baumwolle aus stumpf wein roter Küpe in kräftig grünstichig grauen Tönen an. UNTERANSPRÜCHE: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man als katalytisch wirkende Substanz Kupfer verwendet. 2. Verfahren nach Patentanspruch; dadurch gekennzeichnet, dass man als katalytisch wirkende Substanz Kupferverbindungen verwendet. The dye thus obtained dissolves in concentrated sulfuric acid with a yellow-brown color. He dyes cotton from a dull wine red vat in strong greenish gray tones. SUBClaims: 1. Method according to claim, characterized in that copper is used as the catalytically active substance. 2. Method according to claim; characterized in that copper compounds are used as the catalytically active substance.
CH139652D 1927-03-08 1928-02-24 Process for the preparation of a vat dye of the anthanthrone series. CH139652A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE139652X 1927-03-08
CH133807T 1928-02-24

Publications (1)

Publication Number Publication Date
CH139652A true CH139652A (en) 1930-04-30

Family

ID=25712184

Family Applications (1)

Application Number Title Priority Date Filing Date
CH139652D CH139652A (en) 1927-03-08 1928-02-24 Process for the preparation of a vat dye of the anthanthrone series.

Country Status (1)

Country Link
CH (1) CH139652A (en)

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