CH123853A - Process for the production of bisaminotolylanthrone. - Google Patents

Process for the production of bisaminotolylanthrone.

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Publication number
CH123853A
CH123853A CH123853DA CH123853A CH 123853 A CH123853 A CH 123853A CH 123853D A CH123853D A CH 123853DA CH 123853 A CH123853 A CH 123853A
Authority
CH
Switzerland
Prior art keywords
sep
production
salts
bisaminotolylanthrone
toluidine
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 CH123853A publication Critical patent/CH123853A/en

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

Description

  

  Verfahren zur Herstellung von     Bisaminotolylanthron.       Gemäss dem Verfahren der vorliegenden  Erfindung wird aus     Anthrachinon    und Sal  zen des     o-Toluidins    eine neue Verbindung  erhalten, das     Bisaminotolylanthron,    welchem  folgende     Formel    beizulegen ist:  
EMI0001.0006     
    Das     Bisaminophenylanthron    kann als  Ausgangsmaterial zur Herstellung von Farb  stoffen verschiedener Gruppen Verwendung  finden.  



       Ausführungsbeispiel:     Ein Gemenge von 2000 Gewichtsteilen       Anthrachinon,    500 Gewichtsteilen salzsaurem       o-Toluidin    und 1000     Gewichtsteilen        o-To-          lui@din    wird unter Rühren etwa zwei bis drei  Stunden auf<B>180'</B>     Ülbadtemperatur    erhitzt.  Das durch nebenher gebildetes     Fuchsin    vio  lett gefärbte     Reaktionsprodukt    wird mit Al  kali übersättigt und     durch    Wasserdampf  destillation von überschüssigem     Toluidin    he-    freit.

   Der Rückstand wird in verdünnter  Salzsäure gelöst, vom unveränderten     Anthra-          chinon        abfiltriert,    mit Alkali gefällt und  nach dem Trocknen aus siedendem Chlorben  zol     umkristallisiert.    Das     Bisaminotolylanthron     ist ein hellbraunes, bei 255   schmelzendes  Pulver. Es gleicht in seinen Eigenschaften  dem     Bisaminophenylanthron    und zeigt in  Substanz und in den Lösungen seiner Salze  die Neigung, sich an     ider    Luft rötlich zu  färben.  



  Im obigen Beispiel können die Gewichts  verhältnisse in weiten Grenzen verändert  werden; an Stelle der salzsauren     Anilinbasen     können Salze anderer Mineralsäuren verwen  det werden.



  Process for the production of bisaminotolylanthrone. According to the process of the present invention, a new compound is obtained from anthraquinone and salts of o-toluidine, bisaminotolylanthrone, to which the following formula is to be attached:
EMI0001.0006
    The bisaminophenylanthrone can be used as a starting material for the production of dyes from various groups.



       EXEMPLARY EMBODIMENT: A mixture of 2000 parts by weight of anthraquinone, 500 parts by weight of hydrochloric acid o-toluidine and 1000 parts by weight of o-toluidine is heated to a bath temperature for about two to three hours with stirring. The reaction product, which is colored by the fuchsin violet formed at the same time, is oversaturated with alkali and freed from excess toluidine by steam distillation.

   The residue is dissolved in dilute hydrochloric acid, the unchanged anthraquinone is filtered off, precipitated with alkali and, after drying, recrystallized from boiling chlorobenzene. The bisaminotolyl anthrone is a light brown powder that melts at 255. In its properties it resembles bisaminophenylanthrone and, in substance and in the solutions of its salts, shows a tendency to turn reddish in the air.



  In the example above, the weight ratios can be changed within wide limits; Instead of the hydrochloric aniline bases, salts of other mineral acids can be used.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Bisamino-- tolylanthron, dadurch gekennzeichnet, dass man Salze des o-Toluidins auf Anthrachinon einwirken lässt. Das Bisaminotolylanthron ist ein hell- l.; PATENT CLAIM: Process for the production of bisamino- tolylanthrone, characterized in that salts of o-toluidine are allowed to act on anthraquinone. The bisaminotolyl anthrone is a light l .; raunes, hei 255 schmelzendes Pulver. Es pleieht in seinen Eigenschaften dem Bis- ,iminophenylanthron und zeit in Substanz EMI0002.0010 u <SEP> <B>'</B> <SEP> in <SEP> den <SEP> Lösun-,eu <SEP> seiner <SEP> Salze <SEP> die <SEP> Nei nd <SEP> <B>Z,</B> <tb> <B>01111101,</B> <SEP> Sieli <SEP> in <SEP> der <SEP> Luft <SEP> rötlieh <SEP> zu <SEP> färben. <tb> <B>,</B> <SEP> n coarse, hot melting powder. Its properties match bis-, iminophenylanthrone and its substance EMI0002.0010 u <SEP> <B> '</B> <SEP> in <SEP> the <SEP> solution, eu <SEP> its <SEP> salts <SEP> the <SEP> Nei nd <SEP> <B> Z, </B> <tb> <B> 01111101, </B> <SEP> Sieli <SEP> in <SEP> the <SEP> air <SEP> reddish <SEP> to <SEP>. <tb> <B>, </B> <SEP> n
CH123853D 1925-07-30 1926-07-29 Process for the production of bisaminotolylanthrone. CH123853A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE123853X 1925-07-30
CH122359T 1926-07-29

Publications (1)

Publication Number Publication Date
CH123853A true CH123853A (en) 1927-12-16

Family

ID=25709892

Family Applications (1)

Application Number Title Priority Date Filing Date
CH123853D CH123853A (en) 1925-07-30 1926-07-29 Process for the production of bisaminotolylanthrone.

Country Status (1)

Country Link
CH (1) CH123853A (en)

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