CH149902A - Process for the preparation of a derivative of 3.4.8.9-dibenzpyrene-5.10-quinone. - Google Patents

Process for the preparation of a derivative of 3.4.8.9-dibenzpyrene-5.10-quinone.

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Publication number
CH149902A
CH149902A CH149902DA CH149902A CH 149902 A CH149902 A CH 149902A CH 149902D A CH149902D A CH 149902DA CH 149902 A CH149902 A CH 149902A
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CH
Switzerland
Prior art keywords
dibenzpyrene
quinone
derivative
preparation
swiss
Prior art date
Application number
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German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH149902A publication Critical patent/CH149902A/en

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

Description

  

      Verfahren    zur Darstellung eines Derivates des     3.4.8.9-Dibenzpyren-6.10-cvinons.       Im Hauptpatent ist ein Verfahren zur  Darstellung eines Derivates des 3.4.8.9  Dibenzpyren-5.10-chinons     beschrieben,    bei  dem     3.4.8.9-Dibenzpyren-5.10-chinon    in  saurem Medium in Gegenwart von Kataly  satoren mit mindestens 1     Mol.    eines     chlo-          rierend    wirkenden     Mittels    behandelt wird.

    Es wurde nun gefunden, dass man ein Deri  vat des     3.4.8.9-Dibenzpyren-5.10-chi-          nons    von ähnlichen     Eigenschaften    erhalten  kann, wenn man     Dibrom-3.4.8.9-,dibenz-          pyren-5.        10-chinon    wie es     erhalten    werden  kann, gemäss Verfahren des     schweiz.    Paten  tes Nr. 147053 in saurem Medium in Gegen  wart von     Katalysatoren    mit mindestens  1     Mol.    eines     chlorierend    wirkenden     Mittels     behandelt.  



  Das erhaltene Reaktionsprodukt ist der       Analyse    nach ein     Dibromdichlor-3.4.   <B>8.</B>     9-          Dibenzpyren-5        .10-chinon,    das sich in kon  zentrierter Schwefelsäure mit blauer Farbe  löst und aus     rotvioletter        Küpe    klare, gold-    gelbe Färbungen von sehr guter     Echtheit     liefert.  



  <I>Beispiel:</I>  49     Teile    des nach dem Verfahren des       schweiz.        Patentes    Nr.     147053    erhaltenen       Dibrom=3.    4 . 8.     9-dibenzpyren-5    .     10-chinons     werden in 500 Teilen     Chlorsulfonsäure    unter  Rühren gelöst. Man gibt 1,5 Teile Queck  silber zu, leitet langsam einen Chlorstrom  in die Lösung ein und erhöht die     Temperatur     auf 60 bis 65   C.

   Sobald das Reaktions  produkt in konzentrierter Schwefelsäure sich  mit blauer Farbe löst, was der Aufnahme  von 1     Mol.    Chlor entspricht, lässt man er  kalten und arbeitet in der üblichen Weise  auf.



      Process for the preparation of a derivative of 3.4.8.9-dibenzpyrene-6.10-cvinons. The main patent describes a process for the preparation of a derivative of 3.4.8.9 dibenzpyrene-5.10-quinone, in which 3.4.8.9-dibenzpyrene-5.10-quinone in an acidic medium in the presence of catalysts with at least 1 mol. Of a chlorinated agent is treated.

    It has now been found that a derivative of 3.4.8.9-dibenzpyrene-5.10-quinone with similar properties can be obtained if one dibromo-3.4.8.9-, dibenzpyrene-5. 10-quinone as it can be obtained according to the Swiss procedure. Paten No. 147053 treated in an acidic medium in the presence of catalysts with at least 1 mol. Of a chlorinating agent.



  The reaction product obtained is, according to the analysis, a dibromodichloro-3.4. <B> 8. </B> 9-dibenzpyrene-5.10-quinone, which dissolves in concentrated sulfuric acid with a blue color and, from a red-violet vat, gives clear, golden-yellow colorations of very good fastness.



  <I> Example: </I> 49 parts of the Swiss. Patent No. 147053 obtained dibromo = 3. 4th 8. 9-dibenzpyrene-5. 10-quinones are dissolved in 500 parts of chlorosulfonic acid with stirring. 1.5 parts of mercury are added, a stream of chlorine is slowly introduced into the solution and the temperature is increased to 60 to 65 C.

   As soon as the reaction product dissolves in concentrated sulfuric acid with a blue color, which corresponds to the absorption of 1 mole of chlorine, it is left cold and worked up in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Deri vates des 3.4.8.9-Dibenzpyren-5.10-chi- nons, dadurch gekennzeichnet, dass man Dibrom-3. 4 . 8. 9-,dibenzpyren-5 . 10-chinon, wie es erhalten werden kann, gemäss Verfah ren des schweiz. Patentes Nr. 147053 in saurem Medium in Gegenwart von Kataly satoren mit mindestens 1 Mol. eines chlorie- rend wirkenden Mittels behandelt. PATENT CLAIM: Process for the preparation of a derivative of 3.4.8.9-dibenzpyrene-5.10-quinons, characterized in that dibromo-3. 4th 8. 9-, dibenzpyrene-5. 10-quinone, as it can be obtained, according to the Swiss procedure. Patent No. 147053 treated in an acidic medium in the presence of catalysts with at least 1 mole of a chlorinating agent. Das erhaltene Reaktionsprodukt ist ein Dibromdichlor-3. 4. 8. 9-dibenzpyren-5 . 10- chinon, das sich in konzentrierter Schwefel säure mit blauer Farbe löst und aus rotvio letter Küpe klare, goldgelbe Färbungen von sehr guter Echtheit liefert. The reaction product obtained is a dibromodichloro-3. 4. 8. 9-dibenzpyrene-5. 10- quinone, which dissolves in concentrated sulfuric acid with a blue color and, from the rotvio letter vat, delivers clear, golden-yellow colorations of very good fastness.
CH149902D 1928-06-30 1929-06-18 Process for the preparation of a derivative of 3.4.8.9-dibenzpyrene-5.10-quinone. CH149902A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE149902X 1928-06-30
CH143710T 1929-06-18

Publications (1)

Publication Number Publication Date
CH149902A true CH149902A (en) 1931-09-30

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ID=25714342

Family Applications (1)

Application Number Title Priority Date Filing Date
CH149902D CH149902A (en) 1928-06-30 1929-06-18 Process for the preparation of a derivative of 3.4.8.9-dibenzpyrene-5.10-quinone.

Country Status (1)

Country Link
CH (1) CH149902A (en)

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