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CH191166A - Process for the preparation of a dye of the anthraquinone series. - Google Patents

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

Info

Publication number
CH191166A
CH191166A CH191166DA CH191166A CH 191166 A CH191166 A CH 191166A CH 191166D A CH191166D A CH 191166DA CH 191166 A CH191166 A CH 191166A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
anthraquinone series
carried out
process according
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 CH191166A publication Critical patent/CH191166A/en

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

Description

  

  Verfahren zur Herstellung eines     Farbstoffes    der     Anthrachinonreihe.       Gegenstand vorliegender Erfindung ist die  Herstellung eines     Küpenfarbstoffes    durch Be  handeln des     Amides    ans     2-Chloranthrachinoci-          3-carbonsäure    und     1-lMethylamino-2-brom-          anthrachinon    mittels Kupfer. Die Reaktion  wird zweckmässig in Gegenwart von hoch  siedenden Lösungsmitteln,     z.B.Chinolin,durch.     geführt.  



  Der erhältliche Farbstoff färbt Baumwolle    aus dunkelbrauner     Küpe    in sehr klaren und  echten     grünstichig    gelben Tönen.         Beispiel:       In 400 Gewichtsteile siedendes     Nitro-          benzol    trägt man ein Gemisch von 60 Ge  wichtsteilen Kupferpulver und 60 Gewichts  teilen der     Acylverbindung    folgender Struktur  ein  
EMI0001.0016     
    Nach etwa 12stündigem Sieden wird das  Reaktionsprodukt zwecks Entfernung des  Kupfers mit warmer, verdünnter Salpetersäure    behandelt. Der Rückstand wird aus viel     Chino-          lin    oder Nitrobenzol umkristallisiert.

   Der er  haltene Farbstoff ist halogenfrei und unver-           seifbar.    Er färbt Baumwolle aus brauner     Küpe     in klaren     grünstichig    gelben Tönen von guten       Echtheitseizenschaften    an.



  Process for the preparation of a dye of the anthraquinone series. The present invention relates to the production of a vat dye by treating the amide of 2-chloroanthraquinoci-3-carboxylic acid and 1-methylamino-2-bromo-anthraquinone using copper. The reaction is best carried out in the presence of high-boiling solvents, e.g. quinoline. guided.



  The available dye dyes cotton from a dark brown vat in very clear and genuine greenish yellow tones. Example: A mixture of 60 parts by weight of copper powder and 60 parts by weight of the acyl compound of the following structure is added to 400 parts by weight of boiling nitrobenzene
EMI0001.0016
    After boiling for about 12 hours, the reaction product is treated with warm, dilute nitric acid to remove the copper. The residue is recrystallized from a large amount of quinoline or nitrobenzene.

   The dye obtained is halogen-free and unsaponifiable. It dyes cotton from a brown vat in clear greenish yellow shades with good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass das Amid aus 2-Cliloranthrachinon-3-cai-bonsäur#e und 1-Methylamino-2-broinanthi-achinon mit Kupfer behandelt wird. Der erhältliche Farbstoff färbt Baumwolle aus dunkelbrauner Kiipe in klaren grünstichig gelben Tönen von guten Echtheitseigen schaften. <B>UNTERANSPRÜCHE:</B> 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dar in Gegenwart eines hochsiedenden Lösungsmittels gearbeitet wird. 2. PATENT CLAIM: Process for the production of a vat dye, characterized in that the amide from 2-cliloranthraquinone-3-cai-bonsäur # e and 1-methylamino-2-broinanthi-aquinone is treated with copper. The available dye dyes cotton from dark brown kiipe in clear greenish yellow shades with good fastness properties. SUBClaims: 1. Process according to patent claim, characterized in that it is carried out in the presence of a high-boiling solvent. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass in Gegenwart von Chinolin gearbeitet wird. Process according to claim, characterized in that it is carried out in the presence of quinoline.
CH191166D 1934-12-29 1935-12-28 Process for the preparation of a dye of the anthraquinone series. CH191166A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE191166X 1934-12-29
CH188322T 1935-12-28

Publications (1)

Publication Number Publication Date
CH191166A true CH191166A (en) 1937-05-31

Family

ID=25721631

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191166D CH191166A (en) 1934-12-29 1935-12-28 Process for the preparation of a dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH191166A (en)

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