CH145306A - Process for the preparation of a nitrated mono-methyl-4.5.8.9-dibenzpyrene-3.10-quinone. - Google Patents

Process for the preparation of a nitrated mono-methyl-4.5.8.9-dibenzpyrene-3.10-quinone.

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Publication number
CH145306A
CH145306A CH145306DA CH145306A CH 145306 A CH145306 A CH 145306A CH 145306D A CH145306D A CH 145306DA CH 145306 A CH145306 A CH 145306A
Authority
CH
Switzerland
Prior art keywords
dibenzpyrene
methyl
quinone
mono
nitrated
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 CH145306A publication Critical patent/CH145306A/en

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

Description

  

  Verfahren     zur    Darstellung eines nitrierten     Kono-methyl-l.   <B>5 S.</B>     9-dibenzpyren-          3.        10-chinon.       Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung eines nitrierten     Mono-          metllyl-4.   <B>5. 8.</B>     9-dibenzpyren-3.        10-eliinon,     welches dadurch     gekennzeielinet    ist,     dass    man       Mono-methyl-4.   <B>5.

   8.</B>     9-dibenzpyren-3.        10-          chinon    mit einem nitrierenden Mittel behan  delt, gegebenenfalls in Gegenwart eines Ver  dünnungsmittels und unter Erwärmen.  



  <I>Beispiel:</I>  <B>9-0</B> Gewichtsteile     Mono-metliyl-4.   <B>5 . 8 -</B>     9-          dibenzpyren-3   <B>.</B>     10-eliinon    folgender     Konsti-          tutioli.     
EMI0001.0022     
    werden mit<B>150</B> Gewichtsteilen konzentrierter  Salpetersäure zunächst bei gewöhnlicher  Temperatur verrührt. Das sich zunächst ab  scheidende Nitroprodukt wird durch Erwär  men in Lösung gebracht, worauf beim Erkal  ten alles gelöst bleibt. -Man. gibt nun auf  Wasser und isoliert das in gelben Flocken       ab--eschiedene    Produkt.

   Es kristallisiert aus       Nitrabenzol    in gelben Nadeln und löst sich in  konzentrierter Schwefelsäure mit braunroter  Farbe. Bei der Reduktion erhält man eine  orangerote     Hydrosulfitk-iipe.,    aus welcher  Baumwolle in     olivgrünen    Tönen angefärbt  wird. Die Verbindung kann als Ausgangs  material zur Herstellung von     Küpenfarbstof-          fen    Verwendung finden.



  Process for the preparation of a nitrated Kono-methyl-l. 5s. 9-dibenzpyrene-3. 10-quinone. The subject of this patent is a process for the preparation of a nitrated monometlyl-4. <B> 5. 8. 9-dibenzpyrene-3. 10-eliinon, which is characterized in that one mono-methyl-4. <B> 5.

   8. 9-dibenzpyrene-3. 10-quinone treated with a nitrating agent, if necessary in the presence of a diluent and with heating.



  <I> Example: </I> <B> 9-0 </B> parts by weight of mono-methyl-4. <B> 5. 8 - </B> 9- dibenzpyrene-3 <B>. </B> 10-eliinon of the following constituents.
EMI0001.0022
    are initially stirred with <B> 150 </B> parts by weight of concentrated nitric acid at ordinary temperature. The nitro product which initially separates is brought into solution by heating, whereupon everything remains dissolved when it cools. -Man. now puts on water and isolates the product, which has separated out in yellow flakes.

   It crystallizes from nitrabenzene in yellow needles and dissolves in concentrated sulfuric acid with a brownish-red color. The reduction gives an orange-red hydrosulfite tube, from which cotton is dyed in olive-green tones. The compound can be used as a starting material for the production of vat dyes.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines nitrier ten Mono<B>-</B> methyl <B>-</B> 4<B>- 5 . 8 . 9 -</B> dibenzpyren- 3 <B>.</B> 10-chinon, dadurch gekennzeichnet, dass man Mono<B>-</B> methyl <B>-</B> 4<B>. 5 . 8 . 9 -</B> dibenzpyren- 3. <B>10 -</B> chinon folgender Konstitution: EMI0002.0001 mit einem nitrierenden Mittel behandelt. PATENT CLAIM: Process for the production of a nitrided mono <B> - </B> methyl <B> - </B> 4 <B> - 5. 8th . 9 - </B> dibenzpyrene- 3 <B>. </B> 10-quinone, characterized in that mono <B> - </B> methyl <B> - </B> 4 <B>. 5. 8th . 9 - </B> dibenzpyrene- 3. <B> 10 - </B> quinone of the following constitution: EMI0002.0001 treated with a nitrating agent. Das so erhaltene Produkt kristallisiert aus Nitro benzol in gelben Nadeln und löst sieh in kon- zentrierter Schwefelsäure mit braunroter Farbe. Bei der Reduktion erhält man eine orangerote Hydrosulfitküpe, aus welcher Baumwolle in olivgrünen Tönen angefärbt wird. UNTERANSPRüCHE: <B>1.</B> Verfahren nach Patentanspruch, dadurch Dole <B>,</B> kennzeichnet, dass man als nitrierendes Alittel Salpetersäure verwendet. 2. Verfahren nach Patentanspriteh, dadurch gekennzeichnet, dass man die Reaktion in Gegenwart eines Verdünnungsmittels aus führt. The product obtained in this way crystallizes from nitrobenzene in yellow needles and dissolves in concentrated sulfuric acid with a brownish-red color. The reduction results in an orange-red hydrosulfite vat from which cotton is dyed in olive-green tones. SUBClaims: <B> 1. </B> Method according to patent claim, characterized in that Dole <B>, </B> indicates that nitric acid is used as the nitrating agent. 2. The method according to patent claim, characterized in that the reaction is carried out in the presence of a diluent. <B>3.</B> Verfahren nach Patentanspruch, dadurch ,o-ekennzeichnet, dass man die Reaktion un- D ter 117,nvärineii vornimmt. <B> 3. </B> Process according to claim, characterized in that the reaction is carried out under 117, nvärineii.
CH145306D 1928-03-16 1929-02-22 Process for the preparation of a nitrated mono-methyl-4.5.8.9-dibenzpyrene-3.10-quinone. CH145306A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE145306X 1928-03-16
CH141545T 1929-02-22

Publications (1)

Publication Number Publication Date
CH145306A true CH145306A (en) 1931-02-15

Family

ID=25713847

Family Applications (1)

Application Number Title Priority Date Filing Date
CH145306D CH145306A (en) 1928-03-16 1929-02-22 Process for the preparation of a nitrated mono-methyl-4.5.8.9-dibenzpyrene-3.10-quinone.

Country Status (1)

Country Link
CH (1) CH145306A (en)

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