AT96799B - Process for the preparation of 3-10 perylene quinone. - Google Patents

Process for the preparation of 3-10 perylene quinone.

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Publication number
AT96799B
AT96799B AT96799DA AT96799B AT 96799 B AT96799 B AT 96799B AT 96799D A AT96799D A AT 96799DA AT 96799 B AT96799 B AT 96799B
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AT
Austria
Prior art keywords
quinone
preparation
perylene
perylene quinone
anhydrous
Prior art date
Application number
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German (de)
Inventor
Hans Pereira
Original Assignee
Hans Pereira
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Publication date
Application filed by Hans Pereira filed Critical Hans Pereira
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Publication of AT96799B publication Critical patent/AT96799B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von 3-10 Perylenchinon. 
 EMI1.1 
 für sich oder unter Zusatz wasserfreier Alkalien wie Natriumkarbonat 1, 12-Dioxyperylen erhalten. Das durch Reduktion mit Zinkstaub in das Perylen und dieses durch Oxydation mit Chromsäure in das in der Literatur bekannte 3-10-Chinon   übergeführt   werden kann. Es wurde nun gefunden, dass man dieses 
 EMI1.2 
 Derivate mit wasserfreiem Aluminiumchlorid zu 3,   10-Dioxyperylen   kondensiert und dieses der Luftoxydation aussetzt, wobei es in das entsprechende 3,10-Chinon übergeht. Dieses Chinon färbt aus kirschroter Küpe Baumwolle in hellgelben Tönen. 



   Ausführungsbeispiel : 1 Teil 4,   4'-Dioxy-l,   1'-Dinaphtyl wird mit 3 Teilen wasserfreiem Aluminiumchlorid innig verrieben und das Gemenge unter   Feuchtigkeitsabschluss   ein bis zwei Stunden auf 150  C erhitzt. Zur Isolierung des   3-10-Perylenchinons   behandelt man das Rohprodukt mit verdünnter Natronlauge unter Zusatz von Natriumhydrosulfit, filtriert die entstehende Küpe ab und füllt das Chinon durch Einblasen von Luft aus. Dieses Chinon kann durch Umkristallisieren aus Nitrobenzol gereinigt werden. Jn seinen Eigenschaften stimmt es mit dem in der Literatur   (Monatshefte   für Chemie, 40. Band, S. 407) beschriebenen Chinon überein. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of 3-10 perylene quinone.
 EMI1.1
 obtained by itself or with the addition of anhydrous alkalis such as sodium carbonate 1, 12-dioxyperylene. Which can be converted into perylene by reduction with zinc dust and this can be converted into the 3-10-quinone known in the literature by oxidation with chromic acid. It has now been found that you can do this
 EMI1.2
 Derivatives are condensed with anhydrous aluminum chloride to give 3, 10-dioxyperylene and this is exposed to air oxidation, whereupon it changes into the corresponding 3,10-quinone. This quinone dyes cotton in light yellow tones from a cherry red vat.



   Exemplary embodiment: 1 part of 4, 4'-dioxy-l, 1'-dinaphthyl is thoroughly triturated with 3 parts of anhydrous aluminum chloride and the mixture is heated to 150 ° C. for one to two hours in the absence of moisture. To isolate the 3-10 perylene quinone, the crude product is treated with dilute sodium hydroxide solution with the addition of sodium hydrosulfite, the vat formed is filtered off and the quinone is filled out by blowing in air. This quinone can be purified by recrystallization from nitrobenzene. In its properties it agrees with the quinone described in the literature (monthshefte fur Chemie, 40th volume, p. 407).

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung von 3-10-Perylenchinon, dadurch gekennzeichnet, dass man 4,4'-Dioxy- 1, 1'-Dinaphtyl oder dessen alkylierte Derivate mit ringschliessenden Mitteln, wie z. B. Aluminiumchlorid, eventuell unter Zusatz von wasserfreien Alkalien, wie z. B. Natriumkarbonat, behandelt und das Rohprodukt durch gelinde Oxydation in das Chinon überführt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the preparation of 3-10-perylene quinone, characterized in that 4,4'-dioxy-1, 1'-dinaphthyl or its alkylated derivatives with ring-closing agents, such as. B. aluminum chloride, possibly with the addition of anhydrous alkalis, such as. B. sodium carbonate, treated and the crude product converted into the quinone by mild oxidation. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT96799D 1922-10-28 1922-10-28 Process for the preparation of 3-10 perylene quinone. AT96799B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT96799T 1922-10-28

Publications (1)

Publication Number Publication Date
AT96799B true AT96799B (en) 1924-04-25

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Family Applications (1)

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AT96799D AT96799B (en) 1922-10-28 1922-10-28 Process for the preparation of 3-10 perylene quinone.

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AT (1) AT96799B (en)

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