CH157567A - Process for the preparation of a vat dye of the anthraquinone series. - Google Patents

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

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Publication number
CH157567A
CH157567A CH157567DA CH157567A CH 157567 A CH157567 A CH 157567A CH 157567D A CH157567D A CH 157567DA CH 157567 A CH157567 A CH 157567A
Authority
CH
Switzerland
Prior art keywords
preparation
vat dye
anthraquinone series
vat
anthraquinone
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 CH157567A publication Critical patent/CH157567A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Terfahren    zur Darstellung     eines        Küpenfarbstoffes    der     Anthraehinonreihe.       Im Hauptpatent ist ein Verfahren "zur  Darstellung eines     Küpenfarbstoffes    beschrie  ben, bei dem     2.1-(N)-Anthrachinonakridon-          6-karborrsäurechlorid    mit     1-Amino-4-methoxy-          anthrachinon    durch Erhitzen in einem Lö  sungsmittel umgesetzt wird.  



  Es wurde nun gefunden, dass man in  ganz analoger Weise einen     güpenfarbstoff     von ähnlichen wertvollen Eigenschaften er  halten kann, wenn man     3.2-(S)-Anthra-          chinonthioxanthon-Bz2-karbonsäurechlorid    von  der Formel  
EMI0001.0013     
    mit 1-     Amino-    5     ..        benzoylaminoanthrachinon     durch Erhitzen in einem Lösungsmittel kon  densiert.

      <I>Beispiel:</I>  4 Teile 3 .     2-(S)-Anthrachirronthioxanthoc)-          Bz2-karbonsäurechlorid    der oben angegebenen  Formel, erhältlich aus     2-Chloranthrachinon-          3-karbonsäure    durch Kondensation mit     Thio-          salicylsäure    in wässeriger Lösung unter Zu  satz von     Ätzkali,    nachfolgenden     Ringschluss     zum     Thioxanthonderivat    mit konzentrierter  Schwefelsäure und Überführung in das Kar  bonsäurechlorid durch Kochen mit     Thionyl-          chlorid    in     Nitrobenzollösung,

      werden mit  3,4 Teilen     1-Amino-5-benzoylaminoanthra-          chinon    in 180 Teilen Nitrobenzol so lange  auf 200-210   C erhitzt, bis keine Salzsäure  mehr entweicht. Nach dem Erkalten wird  der abgeschiedene gelbe Farbstoff abgesaugt,  gewaschen und getrocknet. Der Farbstoff  gibt mit alkalischem     Hydrosulfit    eine braune       $üpe,    aus der Baumwolle nach dem Oxy  dieren und Seifen in klaren, goldgelben Tönen  gefärbt wird.



      Terfahren for the representation of a vat dye of the anthraehinone series. In the main patent, a process "for the preparation of a vat dye is described ben, in which 2.1- (N) -Anthraquinonakridon- 6-carboric acid chloride is reacted with 1-amino-4-methoxy-anthraquinone by heating in a solvent.



  It has now been found that in a completely analogous manner, a high quality dye of similar valuable properties can be obtained if 3.2- (S) -anthrahinonthioxanthone-Bz2-carbonyl chloride of the formula
EMI0001.0013
    condensed with 1- amino 5 .. benzoylaminoanthraquinone by heating in a solvent.

      <I> Example: </I> 4 parts 3. 2- (S) -Anthrachirronthioxanthoc) - Bz2-carboxylic acid chloride of the formula given above, obtainable from 2-chloroanthraquinone-3-carboxylic acid by condensation with thiosalicylic acid in aqueous solution with the addition of caustic potash, subsequent ring closure to the thioxanthone derivative with concentrated sulfuric acid and conversion into the carbonic acid chloride by boiling with thionyl chloride in nitrobenzene solution,

      are heated with 3.4 parts of 1-amino-5-benzoylaminoanthraquinone in 180 parts of nitrobenzene to 200-210 C until no more hydrochloric acid escapes. After cooling, the deposited yellow dye is filtered off with suction, washed and dried. With alkaline hydrosulphite, the dye gives a brown paste, from which cotton is dyed after oxidation and soaps in clear, golden-yellow tones.

Claims (1)

PATENTANSPRÜCII: Verfahren zur Darstellung eines Küpen- Earbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man 3.2-(S)-Anthra- chinonthioganthon-Bz2-karbonsäurechlorid von der Formel EMI0002.0007 mit 1- Amino - 5 - benzoylaminoanthrachinon durch Erhitzen in einem Lösungsmittel kon densiert. Der Farbstoff färbt Baumwolle aus brauner Küpe in klaren goldgelben Tönen. PATENT APPLICATION II: Process for the preparation of a vat ear substance of the anthraquinone series, characterized in that 3.2- (S) -anthraquinone thioganthone-Bz2-carboxylic acid chloride of the formula EMI0002.0007 condensed with 1-amino-5-benzoylaminoanthraquinone by heating in a solvent. The dye dyes cotton from a brown vat in clear golden yellow tones.
CH157567D 1930-01-18 1930-12-19 Process for the preparation of a vat dye of the anthraquinone series. CH157567A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE157567X 1930-01-18
CH153488T 1930-12-19

Publications (1)

Publication Number Publication Date
CH157567A true CH157567A (en) 1932-09-30

Family

ID=25716215

Family Applications (1)

Application Number Title Priority Date Filing Date
CH157567D CH157567A (en) 1930-01-18 1930-12-19 Process for the preparation of a vat dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH157567A (en)

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