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CH157560A - 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
CH157560A
CH157560A CH157560DA CH157560A CH 157560 A CH157560 A CH 157560A CH 157560D A CH157560D A CH 157560DA CH 157560 A CH157560 A CH 157560A
Authority
CH
Switzerland
Prior art keywords
preparation
vat dye
anthraquinone
dye
anthraquinone series
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 CH157560A publication Critical patent/CH157560A/en

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

Description

  

      Verfaluen    zur Darstellung eines     güpenfarbstoffes    der     Anthraehinonreihe.       Im Hauptpatent ist ein Verfahren zur  Darstellung eines     Küpenfarbstoffes    beschrie  ben, bei dem 2.     1-(N)-Anthrachinonakridon-          6-karbonsäurechlorid    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     Küpenfarbstoff     von ähnlichen wertvollen Eigenschaften er  halten kann, wenn man     2.1-(S)-Anthrachi-          nonthioxanthon-6-karbonsäurechlorid    von der  Formel  
EMI0001.0012     
    mit     1-Amino-4-methoxyanthrachinon    durch  Erhitzen in einem Lösungsmittel kondensiert.

      <I>Beispiel:</I>    1,4 Teile     2.1-(S)-Anthrachinonthioxanthon-          6-karbonsäurechlorid    der oben angegebenen  Formel, erhältlich zum Beispiel aus     1-Chlor-          anthrachinon-6-karbonsäure    durch Konden  sation mit     Thiosalicylsäure,        Ringschluss    mit       Schwefelsäure    und Behandeln der erhaltenen       Karbonsäure    mit     Phosphorpentachlorid,    wer  den in 56 Teilen     Trichlorbenzol    mit 1,4 Tei  len     1-Amino-4-methoxyanthrachinon    auf etwa  210-215   C erhitzt,

   bis die Farbstoff     bildung     beendet ist. Der beim Erkalten abgeschiedene  Farbstoff wird zweckmässig durch Behandeln  mit     Natriumhypochlorit    gereinigt. Er färbt  Baumwolle aus violetter     güpe    rotstickig gelb.



      Procedure for the representation of a quality 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-carboxylic acid chloride is reacted with 1-amino-4-methoxy-anthraquinone by heating in a solvent.



  It has now been found that a vat dye of similar valuable properties can be obtained in a completely analogous manner if 2.1- (S) -anthraquinone thioxanthone-6-carboxylic acid chloride of the formula
EMI0001.0012
    condensed with 1-amino-4-methoxyanthraquinone by heating in a solvent.

      <I> Example: </I> 1.4 parts of 2.1- (S) -anthraquinone thioxanthone- 6-carboxylic acid chloride of the above formula, obtainable, for example, from 1-chloro-anthraquinone-6-carboxylic acid by condensation with thiosalicylic acid, ring closure with Sulfuric acid and treating the resulting carboxylic acid with phosphorus pentachloride, who heated the 56 parts of trichlorobenzene with 1.4 parts of 1-amino-4-methoxyanthraquinone to about 210-215 C,

   until the dye formation has ended. The dye which separates out on cooling is expediently purified by treatment with sodium hypochlorite. He dyes cotton from purple güpe with a red embroidery yellow.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man 2.1-(S)-Anthra- chinonthioganthon-6-karbonsäurechlorid der Formel EMI0002.0001 mit 1-Amino-4-methogyanthrachinon durch Erhitzen in einem Lösungsmittel kondensiert. Der Farbstoff färbt Baumwolle aus vio letter Küpe rotstichig gelb. PATENT CLAIM: Process for the preparation of a vat dye of the anthraquinone series, characterized in that 2.1- (S) -anthraquinone thioganthone-6-carboxylic acid chloride of the formula EMI0002.0001 condensed with 1-amino-4-methogyanthraquinone by heating in a solvent. The dye dyes cotton from vio letter vat a reddish yellow.
CH157560D 1930-01-18 1930-12-19 Process for the preparation of a vat dye of the anthraquinone series. CH157560A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE157560X 1930-01-18
CH153488T 1930-12-19

Publications (1)

Publication Number Publication Date
CH157560A true CH157560A (en) 1932-09-30

Family

ID=25716208

Family Applications (1)

Application Number Title Priority Date Filing Date
CH157560D CH157560A (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) CH157560A (en)

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