CH145301A - Process for the preparation of mononitro-3.4.8.9-dibenzpyrene-5.10-quinone. - Google Patents

Process for the preparation of mononitro-3.4.8.9-dibenzpyrene-5.10-quinone.

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Publication number
CH145301A
CH145301A CH145301DA CH145301A CH 145301 A CH145301 A CH 145301A CH 145301D A CH145301D A CH 145301DA CH 145301 A CH145301 A CH 145301A
Authority
CH
Switzerland
Prior art keywords
dibenzpyrene
quinone
mononitro
preparation
reaction
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 CH145301A publication Critical patent/CH145301A/en

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

Description

  

      Verfaluen    zur Darstellung von     Mononitro-3.4.8.9-dibenzpyren-5.10-chinon.       Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung von     Mononitro-          3.4.8.9-dibenzpyren-5.        10-chinon,    welches  dadurch gekennzeichnet ist, dass man  <B>3.</B> 4. 8.     9-Dibenzpyren-5    .     10-chinon    mit ei  nem nitrierenden Mittel behandelt, gegebenen  falls in Gegenwart eines Verdünnungsmittels  und unter     Erwärmen.       <I>Beispiel:

  </I>    10 Gewichtsteile 3. 4. 8.     9-Dibenzpyren-          chinon-5.    10 werden in 120     Gewichtsteilen     Nitrobenzol suspendiert und unter Rühren  10     Gewichtsteile    Salpetersäure (D : 1,5)     zu-          "etropft.    Hierauf erwärmt man     etwa    5 Mi  nuten auf 130 bis 135   C, lässt auf 80 bis  100   C abkühlen und saugt das abgeschie  dene     Xononitrodibenzpyrenchinon    ab. Die       oran",refarbenen        Nädelchen    lösen sich in     kon-          zentrierter    Schwefelsäure mit blaustichig-    roter Farbe.

   Die Verbindung kann als Ans  gangsmaterial für die Herstellung von     @iü-          penfarbstoffen    Verwendung finden.



      Procedure for the preparation of mononitro-3.4.8.9-dibenzpyrene-5.10-quinone. The subject of this patent is a process for the preparation of mononitro 3.4.8.9-dibenzpyrene-5. 10-quinone, which is characterized in that <B> 3. </B> 4. 8. 9-dibenzpyrene-5. Treated 10-quinone with a nitrating agent, if necessary in the presence of a diluent and with heating. <I> example:

  </I> 10 parts by weight 3. 4. 8. 9-dibenzpyrenquinone-5. 10 are suspended in 120 parts by weight of nitrobenzene and 10 parts by weight of nitric acid (D: 1.5) are added dropwise with stirring. The mixture is then heated to 130 to 135 ° C. for about 5 minutes, allowed to cool to 80 to 100 ° C. and the deposited product is suctioned off The orange, red needles dissolve in concentrated sulfuric acid with a bluish-red color.

   The compound can be used as a starting material for the production of @ iüpen dyes.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von Mono- nitro-3. 4.8.9-dibenzpyren-5 . 10-chinon, da durch gekennzeichnet, dass man 3. 4.8. 9- Dibenzpyren-5 . 10-chinon mit einem nitrie renden Mittel behandelt. Das so erhaltene 1VIononitro-3.4.8.9- Dibenzpyren-5.10-chinon kristallisiert aus Nitrobenzol in orangefarbenen Nadeln unr! löst sich in konzentrierter Schwefelsäure mit. PATENT CLAIM: Process for the preparation of mononitro-3. 4.8.9-dibenzpyrene-5. 10-quinone, characterized in that one 3. 4.8. 9-dibenzpyrene-5. 10-quinone treated with a nitrating agent. The 1Viononitro-3.4.8.9-dibenzpyrene-5.10-quinone obtained in this way crystallizes from nitrobenzene in orange-colored needles. dissolves in concentrated sulfuric acid. blaustichigroter Farbe. UNTERAN SPRÜCHE 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man Salpetersäure ai nitrierendes Mittel verwendet. 3. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Reaktion in Gegenwart eines Verdünnungsmittels aus führt. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Reaktion un ter Erwärmen vornimmt. . bluish red color. SUBJECT DISCLAIMERS 1. A method according to claim, characterized in that nitric acid is used as a nitrating agent. 3. The method according to claim, characterized in that the reaction is carried out in the presence of a diluent. Process according to claim, characterized in that the reaction is carried out with heating. .
CH145301D 1928-03-16 1929-02-22 Process for the preparation of mononitro-3.4.8.9-dibenzpyrene-5.10-quinone. CH145301A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE145301X 1928-03-16
CH141545T 1929-02-22

Publications (1)

Publication Number Publication Date
CH145301A true CH145301A (en) 1931-02-15

Family

ID=25713842

Family Applications (1)

Application Number Title Priority Date Filing Date
CH145301D CH145301A (en) 1928-03-16 1929-02-22 Process for the preparation of mononitro-3.4.8.9-dibenzpyrene-5.10-quinone.

Country Status (1)

Country Link
CH (1) CH145301A (en)

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