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CH137116A - Process for the preparation of a nitrogenous vat dye of the benzanthrone series. - Google Patents

Process for the preparation of a nitrogenous vat dye of the benzanthrone series.

Info

Publication number
CH137116A
CH137116A CH137116DA CH137116A CH 137116 A CH137116 A CH 137116A CH 137116D A CH137116D A CH 137116DA CH 137116 A CH137116 A CH 137116A
Authority
CH
Switzerland
Prior art keywords
preparation
blue
nitrogenous
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 CH137116A publication Critical patent/CH137116A/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
    • C09B3/22—Dibenzanthrones; Isodibenzanthrones
    • C09B3/24—Preparation by synthesis of the nucleus
    • C09B3/26—Preparation by synthesis of the nucleus from dibenzanthronyls

Landscapes

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

Description

  

      Verfahren    zur Darstellung eines stickstoffhaltigen     Küpenfarbstoffes    der       Benzanthronreihe.       In dem Hauptpatent Nr. 120525 ist ein  Verfahren zur Darstellung eines     Küpenfarb-          stoffes    beschrieben, bei dem     a-Anthrachinonyl-          amino        Bz1.        Bzl'-benzantbronylsulfid    mit ei  nem alkalischen Kondensationsmittel, insbe  sondere alkoholischem Alkali, behandelt  wird.  



       Gegenstand    dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines stickstoff  haltigen     Küpenfarbstoffes    der     Benzanthron-          reihe,    bei dem das Kondensationsprodukt  aus     6-Halogen-Bzl-parathiokresylbenzanthron     und     1-Aminoanthrachinon    mit alkalischen  Mitteln, insbesondere alkoholischem Alkali,  behandelt wird.  



  Der neue Farbstoff färbt aus blauer       Küpe    die pflanzliche Faser in echten, blau  stichigschwarzen Tönen und löst sich in  konzentrierter Schwefelsäure mit trüb blau  stichig grüner Farbe.         Beispiele     1. 10 Teile des Kondensationsproduktes  aus     6-Halogen-Bzl-thiokresylbenzanthron    (er  hältlich zum Beispiel durch Erhitzen von 6  Halogen-Bzl-brombenzanthron mit der berech  neten Menge     p-Thiokresol    und     Kalihydroxyd     in alkoholischer Lösung) und     1-Aminoanthra-          chinon    werden mit 40 Teilen Kalium  hydroxyd und 25-30 Teilen Alkohol so  lange bei 170-180  verschmolzen,

   bis die       Farbstoffbildung    beendet ist. Die Schmelze  wird in der üblichen Weise aufgearbeitet.  



  2. 10 Teile des Kondensationsproduktes  aus     6-Halogen-Bzl-parathiokresylbenzanthron     und     1-Aminoanthrachinon    werden bei unge  fähr     240-250     in die acht- bis zehnfache  Menge geschmolzenes     Kaliumhydroxyd    ein  getragen. Man erhöht die Temperatur der  Schmelze auf etwa 260-270  und rührt so  lange, bis die     Farbstoffbildung    beendet ist.  Die erkaltete Schmelze wird in Wasser      aufgenommen, kochend filtriert und gewa  schen.



      Process for the preparation of a nitrogenous vat dye of the benzanthrone series. The main patent no. 120525 describes a process for the preparation of a vat dye in which a-anthraquinonylamino Bz1. Bzl'-benzantbronyl sulfide is treated with an alkaline condensing agent, in particular special alcoholic alkali.



       The subject of this additional patent is a process for the preparation of a nitrogen-containing vat dye of the benzanthrone series, in which the condensation product of 6-halo-Bzl-parathiocresylbenzanthrone and 1-aminoanthraquinone is treated with alkaline agents, especially alcoholic alkali.



  The new dye dyes the vegetable fibers from a blue vat in real, blue, pungent black tones and dissolves in concentrated sulfuric acid with a cloudy blue, pungent green color. Examples 1. 10 parts of the condensation product of 6-halo-Bzl-thiocresylbenzanthrone (it can be obtained, for example, by heating 6 halo-Bzl-bromobenzanthrone with the calculated amount of p-thiocresol and potassium hydroxide in alcoholic solution) and 1-aminoanthraquinone fused with 40 parts of potassium hydroxide and 25-30 parts of alcohol at 170-180,

   until dye formation is complete. The melt is worked up in the usual way.



  2. 10 parts of the condensation product of 6-halo-Bzl-parathiocresylbenzanthrone and 1-aminoanthraquinone are carried at around 240-250 in eight to ten times the amount of molten potassium hydroxide. The temperature of the melt is increased to about 260-270 and the mixture is stirred until the formation of the dye has ended. The cooled melt is taken up in water, filtered at the boil and washed.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines stickstoff haltigen Küpenfarbstoffes der Benzanthron- reihe, dadurch gekennzeichnet, dass man das Kondensationsprodukt aus 6-Halogen-Bz1- parathiokresylbenzanthron und 1- Amino- Anthraehinon mit alkalischen Mitteln behan delt. Der neue Farbstoff färbt aus blauer Küpe die pflanzliche Faser in echten, blau stichig schwarzen Tönen und löst sich in konzen trierter Schwefelsäure mit trüb blaustichig grüner Farbe. PATENT CLAIM: Process for the preparation of a nitrogen-containing vat dye of the benzanthrone series, characterized in that the condensation product of 6-halogen-Bz1-parathiocresylbenzanthrone and 1-amino anthraquinone is treated with alkaline agents. The new dye dyes the vegetable fibers from a blue vat in real, blue-tinged black tones and dissolves in concentrated sulfuric acid with a cloudy blue-tinged green color.
CH137116D 1928-06-14 1928-06-14 Process for the preparation of a nitrogenous vat dye of the benzanthrone series. CH137116A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH137116T 1928-06-14
CH120525T 1929-08-01

Publications (1)

Publication Number Publication Date
CH137116A true CH137116A (en) 1929-12-15

Family

ID=25709472

Family Applications (1)

Application Number Title Priority Date Filing Date
CH137116D CH137116A (en) 1928-06-14 1928-06-14 Process for the preparation of a nitrogenous vat dye of the benzanthrone series.

Country Status (1)

Country Link
CH (1) CH137116A (en)

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