CH169686A - Process for the preparation of a nitro derivative of 13,13'-dibenzanthronyl. - Google Patents
Process for the preparation of a nitro derivative of 13,13'-dibenzanthronyl.Info
- Publication number
- CH169686A CH169686A CH169686DA CH169686A CH 169686 A CH169686 A CH 169686A CH 169686D A CH169686D A CH 169686DA CH 169686 A CH169686 A CH 169686A
- Authority
- CH
- Switzerland
- Prior art keywords
- dibenzanthronyl
- yellowish
- soluble
- nitro derivative
- preparation
- Prior art date
Links
Landscapes
- Photoreceptors In Electrophotography (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Nitroderivates von 13,13'-Dibenzanthronyl. Vorliegende Erfindung betrifft ein Ver fahren zur Herstellung eines Nitroderivates von 13,13'-Dibenzanthronyl.
13,13'-Dibenzanthronyl ist in dem Ver. St.- Patent Nr. 1607 491 beschrieben und hat wahrscheinlich folgende Formel:
EMI0001.0007
<I>Beispiel:</I> 100 Teile 13,13'-Dibenzanthronyl (vergl.
Beispiel 1 Ver. St.-Patent Nr. 1607 491) werden zu 500 Teilen Nitrobenzol zugegeben; hierauf wird die Mischurig unter Rühren auf 60 C erhitzt, 250 Teile Salpetersäure von 41 B6 im Verlauf von ungefähr einer Stunde zugegeben und die Temperatur der Masse auf 80 C gebracht. Die Nitrierungsmasse wird ungefähr 3 Stunden bei einer Temperatur von 80 bis 90 C gerührt. Sie wird dann abge kühlt und in 500 Teile Wasser gegossen, das 175 Teile Natriumkarbonat enthält. Das Nitrobenzol wird durch Dampfdestillation entfernt. Der Niederschlag wird abfiltriert und mit heissem Wasser gewaschen. Das Produkt kann dann getrocknet werden.
Das neue so erhaltene Produkt ist ein gelblich braunes Pulver, das in konzentrierter Schwefelsäure mit heller, gelblichroter Farbe ohne Fluoreszenz löslich ist. Es ist wenig in den gewöhnlichen, niedrig siedenden, or ganischen Lösungsmitteln mit gelber Farbe löslich, aber es ist löslich in heissem Nitro- benzol, aus dem es in Form von kleinen gelblichbraunen Kristallen umkristallisiert werden kann. Das Produkt schmilzt nicht, wenn es auf 300 C erhitzt wird. Aus der Stickstoffanalyse ergibt sich mit Wahr scheinlichkeit, dass es ein Dinitro-13,13'-di- benzanthronyl ist.
Process for the preparation of a nitro derivative of 13,13'-dibenzanthronyl. The present invention relates to a method for producing a nitro derivative of 13,13'-dibenzanthronyl.
13,13'-dibenzanthronyl is in the Ver. St. Patent No. 1607 491 and probably has the following formula:
EMI0001.0007
<I> Example: </I> 100 parts 13,13'-dibenzanthronyl (cf.
Example 1 Ver. St. Patent No. 1607 491) are added to 500 parts of nitrobenzene; The mixer is then heated to 60 ° C. with stirring, 250 parts of nitric acid of 41 B6 are added over the course of approximately one hour and the temperature of the mass is brought to 80 ° C. The nitriding mass is stirred for about 3 hours at a temperature of 80 to 90 ° C. It is then cooled and poured into 500 parts of water containing 175 parts of sodium carbonate. The nitrobenzene is removed by steam distillation. The precipitate is filtered off and washed with hot water. The product can then be dried.
The new product obtained in this way is a yellowish-brown powder which is soluble in concentrated sulfuric acid with a light, yellowish-red color without fluorescence. It is sparingly soluble in common, low-boiling, organic solvents with a yellow color, but it is soluble in hot nitrobenzene, from which it can be recrystallized in the form of small yellowish-brown crystals. The product does not melt when heated to 300C. The nitrogen analysis shows with probability that it is a dinitro-13,13'-dibenzanthronyl.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US169686XA | 1929-10-19 | 1929-10-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH169686A true CH169686A (en) | 1934-06-15 |
Family
ID=21779990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH169686D CH169686A (en) | 1929-10-19 | 1930-10-18 | Process for the preparation of a nitro derivative of 13,13'-dibenzanthronyl. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH169686A (en) |
-
1930
- 1930-10-18 CH CH169686D patent/CH169686A/en unknown
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