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CH161744A - Process for the production of a new dye of the dibenzanthrone series. - Google Patents

Process for the production of a new dye of the dibenzanthrone series.

Info

Publication number
CH161744A
CH161744A CH161744DA CH161744A CH 161744 A CH161744 A CH 161744A CH 161744D A CH161744D A CH 161744DA CH 161744 A CH161744 A CH 161744A
Authority
CH
Switzerland
Prior art keywords
blue
dye
production
new dye
water
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH161744A publication Critical patent/CH161744A/en

Links

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
    • C09B3/00Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/22Dibenzanthrones; Isodibenzanthrones
    • C09B3/30Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus
    • C09B3/32Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus by halogenation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr.     l.51330.            Verfahren    zur Herstellung eines neuen     Farbstoffes    der     Bibenzanthronreihe.       Im Hauptpatent Nr. 151330 ist gezeigt  worden, dass     man    durch     Bromieren    des     wasser-          tropfechten    chlorierten     Dibenzanthrotts    des  Patentes Nr. 119986 unter bestimmten Be  dingungen einen neuen, wertvollen     Farbstoff     erhält.  



  Es wurde nun gefunden, dass die     Cber-          tragung    desselben     Bromierungsverfahrens    auf  das     wassertropfechte    chlorierte     Isodibenzan-          thron    des Patentes Nr.<B>146267</B>     bezw.    dessen  Zusatz 149618 ebenfalls zu einem wertvollen       Farbstoff    führt.

   Die     Bromierung    findet zweck  mässig in     Chlorsulfonsäure    und in Gegenwart  eines Überträgers bei     Tenrper-a4.urert    unter  <B>1000</B> mit der für die Bildung eines     Dibrom-          derivates    genügenden Menge Brom statt. Als  Katalysatoren können Jod, Schwefel, Antimon  usw. verwendet werden.  



  Der neue     Farbstoff    ist ein     violettstichiges     Pulver; den Analysenzahlen nach liegt ein       Tetraehlordibromisodibenzanthron    vor. In  konzentrierter     Schwefelsäure    löst sich der       Farbstoff    stumpf oliv; beim Eingiessen dieser    Lösung in Wasser fallen     rötlichblaue    Flocken .  aus.

   In siedendem     Toluol    und Nitrobenzol  löst er sich blauviolett mit schwach bräun  licher Fluoreszenz und in siedendem Anilin       violettblau.    Der     Fgrbstoff    färbt Baumwolle  aus blaugrüner     Küpe    in     rötlichblauen,        Wasser-          tropfechten    Tönen.

           Beispiel:     20 Teile des nach dem Patent 146267       bezw.    dessen Zusatz 149618 erhältlichen     Te-          trachlorisodibenzanthronswerden        unterRühren     und Kühlen bei gewöhnlicher Temperatur in  200 Teilen     Ohlorsttlfonsäure    gelöst; hierauf  werden bei gleicher Temperatur 1 Teil Jod  zugegeben und weiter 12 Teile Brom zu  tropfen gelassen. Das Reaktionsgemisch wird  dann auf 55   erwärmt und bis zum Ver  schwinden des Broms bei 55-60   gehalten.  Nach dem Erkalten versetzt man die Reak  tionsflüssigkeit mit 400 Teilen konzentrierter  Schwefelsäure, giesst auf Eis und isoliert  dann den neuen     Farbstoff    in üblicher Weise.



      Additional patent to the main patent No. 1.51330. Process for the production of a new dye of the bibenzanthrone series. In the main patent No. 151330 it was shown that, under certain conditions, a new, valuable dye can be obtained by brominating the water-dropping, chlorinated dibenzanthrot of patent No. 119986.



  It has now been found that the transfer of the same bromination process to the water-drop-proof chlorinated isodibenzanthrone of patent no. 146267 and / or patent no. the addition of 149618 also leads to a valuable dye.

   The bromination expediently takes place in chlorosulfonic acid and in the presence of a carrier at Tenrper-a4.urert under <B> 1000 </B> with the amount of bromine sufficient for the formation of a dibromo derivative. Iodine, sulfur, antimony, etc. can be used as catalysts.



  The new dye is a purple-tinged powder; According to the analytical figures, a tetraehlordibromisodibenzanthrone is present. In concentrated sulfuric acid, the dye dissolves dull olive; when this solution is poured into water, reddish-blue flakes fall. out.

   In boiling toluene and nitrobenzene it dissolves blue-violet with slightly brownish fluorescence and in boiling aniline violet-blue. The dye dyes cotton from a blue-green vat in reddish-blue, water-resistant tones.

           Example: 20 parts of the respectively according to patent 146267. the addition of 149618 available tetrachloroisodibenzanthrons are dissolved in 200 parts of chlorofluoric acid with stirring and cooling at ordinary temperature; 1 part of iodine is then added at the same temperature and a further 12 parts of bromine are allowed to drip. The reaction mixture is then warmed to 55 and held at 55-60 until the bromine has disappeared. After cooling, the reaction liquid is mixed with 400 parts of concentrated sulfuric acid, poured onto ice and the new dye is then isolated in the usual way.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes der Dibenzanthronreihe, dadurch gekennzeichnet, dass man das nach dem Ver fahren des Schweizer-Patentes Nr. 146267 herstellbare chlorierte Isodibenzanthron in Gegenwart- von Lösungsmitteln, die aus sol chen Sulfierungsmitteln bestehen; die wenig stens so energisch sulfierend wirken wie reine Schwefelsäure, bromiert. Der neue Farbstoff ist ein violettstichiges Pulver; PATENT CLAIM: Process for the production of a new dye of the dibenzanthrone series, characterized in that the chlorinated isodibenzanthrone which can be produced according to the method of Swiss patent no. 146267 is produced in the presence of solvents which consist of such sulphonation agents; which are at least as energetically sulphurizing as pure brominated sulfuric acid. The new dye is a purple-tinged powder; den Analysenzahlen nach liegt ein Tetrachlordibromisodibenzanthron vor. In konzentrierter Schwefelsäure löst sich der Farb stoff stumpf oliv; beim Eingiessen dieser Lösung in Wasser fallen rötlichblaue Flocken aus. In siedendem Toluol und Nitrobenzol löst er sich blauviolett mit schwach bräun licher Fluoreszenz und in siedendem Anilin violettblau. Der Farbstoff färbt Baumwolle aus blaugrüner $üpe in rötlichblauen, wasser- tropfechten Tönen. according to the analytical figures, a tetrachlorodibromoisodibenzanthrone is present. The dye dissolves dull olive in concentrated sulfuric acid; when this solution is poured into water, reddish-blue flakes precipitate. In boiling toluene and nitrobenzene it dissolves blue-violet with slightly brownish fluorescence and in boiling aniline violet-blue. The dye dyes cotton from blue-green oil in reddish-blue, water-resistant tones.
CH161744D 1932-05-27 1932-05-27 Process for the production of a new dye of the dibenzanthrone series. CH161744A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH151330T 1932-05-27
CH161744T 1932-05-27

Publications (1)

Publication Number Publication Date
CH161744A true CH161744A (en) 1933-05-15

Family

ID=25715797

Family Applications (1)

Application Number Title Priority Date Filing Date
CH161744D CH161744A (en) 1932-05-27 1932-05-27 Process for the production of a new dye of the dibenzanthrone series.

Country Status (1)

Country Link
CH (1) CH161744A (en)

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