CH139378A - 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
CH139378A
CH139378A CH139378DA CH139378A CH 139378 A CH139378 A CH 139378A CH 139378D A CH139378D A CH 139378DA CH 139378 A CH139378 A CH 139378A
Authority
CH
Switzerland
Prior art keywords
preparation
vat dye
nitrogenous
dye
benzanthrone
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 CH139378A publication Critical patent/CH139378A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B5/00Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 120525.         Zierfahren    zur Darstellung eines stickstoffhaltigen     Küpenfarbstoffes    der       .BPnzanthronreihe.       In dem Hauptpatent Nr. 120525 ist ein  Verfahren zur Darstellung eines     Küpenfarb-          stofl'es    beschrieben, bei dem     a-Anthrachinonyl-          amino-Bz1        #        Bzl'-benzanthronylsulfid    mit einem  alkalischen Kondensationsmittel, insbesondere  alkoholischem     Alkaii,    behandelt wird.

      Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines stickstoff  haltigen     Küpenfarbstoffes    der     Benzanthron-          reihe,    bei dem ein Kondensationsprodukt der  nachstehenden Formel:  
EMI0001.0015     
      worin R ein organischer Rest mit weniger  als 17     Kohlenstoffatomen    ist, mit alkalischen  Mitteln, insbesondere alkoholischem Alkali,  behandelt wird. Der an Schwefel gebundene  organische Rest R der Formel tritt nicht mit  in das Endprodukt ein.  



  Der neue Farbstoff färbt aus blauer     Küpe     die pflanzliche Faser in echten, blaustichig  schwarzen Tönen und löst sich in konzentrierter  Schwefelsäure mit trüb blaustichig grüner  Farbe.  



  <I>Beispiele</I>  1. 10 Teile     6-(a-Anthrachinonyl)-amino-          Bzl-thiokresy        lbenzanthron    (erhältlich zum Bei  spiel durch Kondensation von     6-Halogen-Bzl-          thiokresyl-benzanthron    mit     a-Aminoanthra-          chinon)    werden mit 40 Teilen     Kaliumhydroxyd     und 25-30 Teilen Alkohol solange bei 170 bis  180   verschmolzen, bis die     Farbstoffbildung     beendet ist. Die Schmelze wird in der üblichen  Weise aufgearbeitet.  



  2. 10 Teile     6-(a-Anthrachinonyl)-amino-          Bzl-thiokresylbenzanthron    werden bei unge  fähr     240-2501    in die acht- bis zehnfache  Menge geschmolzenes     Kaliumhydroxyd    einge  tragen. Man erhöht die Temperatur der  Schmelze auf etwa<B>260-2700</B> und rührt so  lange, bis die     Farbsto$bildung    beendet ist.  Die erkaltete Schmelze wird in Wasser auf  genommen, kochend filtriert und gewaschen.



      Additional patent to main patent no. 120525. Zierfahren to display a nitrogen-containing vat dye of the .BPnzanthron series. The main patent no. 120525 describes a process for the preparation of a vat dye in which a-anthraquinonylamino-Bz1 # Bzl'-benzanthronyl sulfide is treated with an alkaline condensation agent, in particular an 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 a condensation product of the following formula:
EMI0001.0015
      where R is an organic radical with fewer than 17 carbon atoms, is treated with alkaline agents, especially alcoholic alkali. The organic radical R of the formula bonded to sulfur does not enter the end product.



  The new dye dyes the vegetable fibers from the blue vat in real, bluish black tones and dissolves in concentrated sulfuric acid with a cloudy bluish green color.



  <I> Examples </I> 1. 10 parts 6- (a-anthraquinonyl) -amino- Bzl-thiocresy lbenzanthrone (obtainable for example by condensation of 6-halo-Bzl-thiocresyl-benzanthrone with a-aminoanthraquinone) are fused with 40 parts of potassium hydroxide and 25-30 parts of alcohol at 170 to 180 until the dye formation is complete. The melt is worked up in the usual way.



  2. 10 parts of 6- (a-anthraquinonyl) -amino-Bzl-thiocresylbenzanthrone are carried into eight to ten times the amount of molten potassium hydroxide at approximately 240-2501. The temperature of the melt is increased to about 260-2700 and the mixture is stirred until the formation of color has ended. The cooled melt is taken up in water, filtered at the boil and washed.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines stick stoffhaltigen Küpenfarbstoffes der Benzanthron- reihe, dadurch gekennzeichnet, dass man ein Kondensationsprodukt der nachstehenden Formel EMI0002.0019 worin R ein organischer Rest mit weniger als 17 Kohlenstoffatoinen ist, der bei der Reaktion abgespalten wird und nicht in den Endstoff eintritt, mit alkalischen Mitteln be handelt. Der neue Farbstoff färbt aus blauerKüpe die pflanzliche Faser in echten, blaustichig schwarzen Tönen und löst sieh iri konzentrierter 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 a condensation product of the following formula is used EMI0002.0019 where R is an organic radical with fewer than 17 carbon atoms, which is split off during the reaction and does not enter the end product, with alkaline agents. The new dye from a blue vat dyes the vegetable fibers in real, bluish black tones and dissolves them in concentrated sulfuric acid with a cloudy bluish green color.
CH139378D 1928-07-30 1928-07-30 Process for the preparation of a nitrogenous vat dye of the benzanthrone series. CH139378A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH139378T 1928-07-30
CH120525T 1929-08-01

Publications (1)

Publication Number Publication Date
CH139378A true CH139378A (en) 1930-04-15

Family

ID=25709474

Family Applications (1)

Application Number Title Priority Date Filing Date
CH139378D CH139378A (en) 1928-07-30 1928-07-30 Process for the preparation of a nitrogenous vat dye of the benzanthrone series.

Country Status (1)

Country Link
CH (1) CH139378A (en)

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