CH144576A - Process for the preparation of a derivative of dibenzpyrenquinone. - Google Patents

Process for the preparation of a derivative of dibenzpyrenquinone.

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Publication number
CH144576A
CH144576A CH144576DA CH144576A CH 144576 A CH144576 A CH 144576A CH 144576D A CH144576D A CH 144576DA CH 144576 A CH144576 A CH 144576A
Authority
CH
Switzerland
Prior art keywords
dibenzpyrenquinone
derivative
preparation
yellow
nitrating
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 CH144576A publication Critical patent/CH144576A/en

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

Description

  

      Verfahren    zur Darstellung eines Derivates des     Dibenzpsreneliinons.       Es wurde gefunden, dass man ein wert  volles Derivat des     Dibenzpyrenchinons    er  halten kann, wenn man     Mononitrodibenz-          hy        rencliinon,    erhältlich durch Nitrieren von       Dibenzpyrenchinon    der Formel  
EMI0001.0008     
    in     Nitrobenzol    mit 96     %        iger    Salpetersäure bei  0 bis 100   C, mit     Benzoylchlorid    behandelt.  



  Das in gelben Nadeln kristallisierende       1loriochlordibenzpyrenchinon    löst sich in  konzentrierter Schwefelsäure mit violetter  Farbe     und    färbt Baumwolle aus blauroter       liiipe    in gelben Tönen.  



  <I>Beispiel:</I>  50 Teile     Mononitrodibenzpy        renchinon,    er  halten durch Nitrieren von Dibenzpyren-         chinon    der oben erwähnten Formel     finit          96%iger    Salpetersäure in     Nitrobenzol,    wer  den in 500 Teilen     Benzoylchlorid    solange un  ter Rühren gekocht, bis kein     @1us@.;an@sinate-          rial    mehr nachzuweisen ist. Darauf     llisst        niiiii     erkalten und arbeitet in     der        üblichen         'ei(1     auf.



      Process for the preparation of a derivative of Dibenzpsreneliinons. It has been found that a valuable derivative of dibenzpyrenquinone can be obtained by using mononitrodibenzyrencliinone, obtainable by nitrating dibenzpyrenquinone of the formula
EMI0001.0008
    in nitrobenzene with 96% nitric acid at 0 to 100 C, treated with benzoyl chloride.



  The lloriochlorodibenzpyrenquinone, which crystallizes in yellow needles, dissolves in concentrated sulfuric acid with a violet color and dyes cotton from blue-red liiipe in yellow tones.



  <I> Example: </I> 50 parts of mononitrodibenzpyrenquinone, obtained by nitrating dibenzpyrenquinone of the above-mentioned formula finitely 96% nitric acid in nitrobenzene, are boiled in 500 parts of benzoyl chloride with stirring until no @ 1us @ .; an @ sinaterial has to be more proven. Then it never cools down and works in the usual 'ei (1.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Deriva tes des Dibenzpyrenchinons, dadurch gekenn zeichnet, dass man llononitroclibenzpyren- chinon, erhältlich durch Nitrieren von 1)i- benzpyrenchinon von der Formel EMI0001.0036 in Nitrobenzol mit 96%iger Salpetersäure bei 80 bis<B>100'</B> C, mit Benzoylchlorid behan delt. Das in gelben Nadeln kristallisierende Monoehlordibenzpyrenchinon löst sich in konzentrierter Schwefelsäure mit violetter Farbe und färbt Baumwolle aus blauroter Küpe in gelben Tönen. PATENT CLAIM: Process for the preparation of a derivative of dibenzpyrenquinone, characterized in that one llononitroclibenzpyrenquinone, obtainable by nitrating 1) i-benzpyrenquinone of the formula EMI0001.0036 in nitrobenzene with 96% nitric acid at 80 to <B> 100 '</B> C, treated with benzoyl chloride. The mono-lordibenzpyrenquinone, which crystallizes in yellow needles, dissolves in concentrated sulfuric acid with a violet color and dyes cotton from a blue-red vat in yellow tones.
CH144576D 1928-07-26 1929-06-24 Process for the preparation of a derivative of dibenzpyrenquinone. CH144576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE144576X 1928-07-26

Publications (1)

Publication Number Publication Date
CH144576A true CH144576A (en) 1931-01-15

Family

ID=5670281

Family Applications (1)

Application Number Title Priority Date Filing Date
CH144576D CH144576A (en) 1928-07-26 1929-06-24 Process for the preparation of a derivative of dibenzpyrenquinone.

Country Status (1)

Country Link
CH (1) CH144576A (en)

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