CH144577A - 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
CH144577A
CH144577A CH144577DA CH144577A CH 144577 A CH144577 A CH 144577A CH 144577D A CH144577D A CH 144577DA CH 144577 A CH144577 A CH 144577A
Authority
CH
Switzerland
Prior art keywords
dibenzpyrenquinone
red
preparation
derivative
nitrobenzene
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 CH144577A publication Critical patent/CH144577A/en

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

Description

  

  Verfahren zur Darstellung eines Derivates des     Dibenzpyrenchinons.       Es wurde gefunden, dass man ein     wert-          i-olles    Derivat des     Dibenzpyrenchinons    er  halten kann, wenn man     Monoaminodibenz-          hyrenchinon,    erhältlich durch Nitrieren von       Dibenzpyrenchinon    von der Formel  
EMI0001.0008     
    in Nitrobenzol mit 96%iger Salpetersäure bei  80 bis 100   C und Reduktion des erhaltenen  Nitrokörpers mit     Schwefelnatriumlösung    bei       90    bis<B>1.00</B>   C mit     Benzoylchlorid    behandelt.  



  Der neue Körper,     Monobenzoylamino-          dibenzpyrenehinon,    bildet kupferrote Nadeln,  löst sich in konzentrierter Schwefelsäure mit  violetter Farbe und liefert auf Baumwolle  aus roter     Küpe    ausserordentlich klare, orange-    rote Färbungen von ausgezeichneter Echt  heit.  



  <I>Beispiel:</I>       35    Teile     Monoaminodibenzpyrenchiiion.     dargestellt durch Reduktion des     Mononitro-          dibenzpyrenchinons,    welches durch Nitrieren  von     Dibenzpyrenchinon    der eingangs er  w     a        Anten        Formel        in        Nitrobenzol        mit   <B>1</B>     96        /0   <B>'</B>     i-er   <B>'</B>  Salpetersäure bei 80 bis<B>100</B>         <B>C</B> erhalten  wird,

   mit     Schwefelnatriumlösung    bei 90 bis  100   C werden in 1000 Teilen Nitrobenzol  suspendiert und nach Zugabe     vori   <B>100</B> Teilen       Benzoylchlorid    zum     Sieden    erhitzt. Hierauf  lässt man erkalten und isoliert den ausgeschie  denen Körper in der üblichen Weise.



  Process for the preparation of a derivative of dibenzpyrenquinone. It has been found that a valuable derivative of dibenzpyrenquinone can be obtained by using monoaminodibenzyrenquinone, obtainable by nitrating dibenzpyrenquinone of the formula
EMI0001.0008
    treated in nitrobenzene with 96% nitric acid at 80 to 100 C and reduction of the resulting nitro body with sodium sulphide solution at 90 to 1.00 C with benzoyl chloride.



  The new substance, monobenzoylamino-dibenzpyrenehinone, forms copper-red needles, dissolves in concentrated sulfuric acid with a violet color and, on cotton from a red vat, provides extraordinarily clear, orange-red colorations of excellent fastness.



  <I> Example: </I> 35 parts of monoaminodibenzpyrenchiiion. represented by the reduction of the mononitro dibenzpyrenquinone, which was obtained by nitrating dibenzpyrenquinone of the above-mentioned formula in nitrobenzene with <B> 1 </B> 96/0 <B> '</B> i-er <B>' </ B> nitric acid at 80 to <B> 100 </B> <B> C </B> is obtained,

   with sodium sulfur solution at 90 to 100 ° C., the mixture is suspended in 1000 parts of nitrobenzene and, after addition, heated to boiling before 100 parts of benzoyl chloride. The body is then allowed to cool down and isolated in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines 1)eri@a- tes des Dibenzpyrenchinons, dadurch ge kennzeichnet, dass man 3lonoaminodibenz- pyrenchinon, erhältlich durch Nitrieren von Dibenzpyrenchinon von der Formel EMI0002.0001 in Nitrobenzol mit 96 öiger Salpetersäure säure bei 80 bis 100 C und Reduktion des erhaltenen Nitrokörpers mit Schwefel- natriumlösung bei 90 bis<B>100</B> C mit Benzoylchlorid behandelt. PATENT CLAIM: Process for the preparation of a 1) eri @ a- tes of dibenzpyrenquinone, characterized in that one 3lonoaminodibenzpyrenquinone, obtainable by nitrating dibenzpyrenquinone of the formula EMI0002.0001 treated in nitrobenzene with 96 ole nitric acid at 80 to 100 C and reduction of the resulting nitro body with sodium sulphide solution at 90 to 100 C with benzoyl chloride. Der neue Körper, Monobenzoylamino- dibenzpyrenchinon, bildet kupferrote Nadeln, löst sich in konzentrierter Schwefelsäure mit violetter Farbe und liefert auf Baumwolle aus roter Küpe ausserordentlich klare, orange rote Färbungen von ausgezeichneter Echt heit. The new body, monobenzoylaminodibenzpyrenquinone, forms copper-red needles, dissolves in concentrated sulfuric acid with a violet color and, on cotton from a red vat, provides exceptionally clear, orange-red colorations of excellent fastness.
CH144577D 1928-07-26 1929-06-24 Process for the preparation of a derivative of dibenzpyrenquinone. CH144577A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE144577X 1928-07-26
CH144577T 1929-06-24

Publications (1)

Publication Number Publication Date
CH144577A true CH144577A (en) 1931-01-15

Family

ID=25714485

Family Applications (1)

Application Number Title Priority Date Filing Date
CH144577D CH144577A (en) 1928-07-26 1929-06-24 Process for the preparation of a derivative of dibenzpyrenquinone.

Country Status (1)

Country Link
CH (1) CH144577A (en)

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