CH147047A - 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.Info
- Publication number
- CH147047A CH147047A CH147047DA CH147047A CH 147047 A CH147047 A CH 147047A CH 147047D A CH147047D A CH 147047DA CH 147047 A CH147047 A CH 147047A
- Authority
- CH
- Switzerland
- Prior art keywords
- dibenzpyrene
- quinone
- derivative
- preparation
- reddish
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung eines Derivates des 3.4.8.9-Dibenzpyren-6.10-ehinons. Im Hauptpatent ist ein Verfahren zur Dar stellung eines Derivates des 3.4.8.9-Di- benzpyren-5. 10-chinons beschrieben, bei dem 3. 4. 8 . 9-Dibenzpyren-5.10-chinon in saurem Medium in Gegenwart von Katalysatoren mit mindestens 1 Mol eines chlorierend wir kenden Mittels behandelt wird.
Es wurde nun gefunden, dass man ein Derivat des 3 . 4. 8 . 9-Diberizpyren-5 . 10-chi- nons von ähnlichen Eigenschaften erhalten kann, wenn man 3.4.8.9-Dibenzpyren- 5.10-chinon in saurem Medium in Gegen wart von Katalysatoren mit mindestens 2 Mol eines chlorierend wirkenden Mittels behandelt.
Das erhaltene Reaktionsprodukt ist der Analyse nach ein Tetrachlor-3.4:8.9-Di- benzpyren-5.10-chinon, das sich in konzen trierter Schwefelsäure mit rotstichigblauer Farbe löst und aus rotstichig violetter Küpe grünstichiggelbe Färbungen von- sehr guter Echtheit liefert.
<I>Beispiel:</I> 33,3 Teile reines 3. 4. 8 . 9-Dibenzpyi-en- 5 . 10-chinon, wie es durch Sublimation, Kri stallisation oder durch Auskochen von Roh- dibenzpyrenchinonmit hochsiedenden Lösungs mitteln erhalten werden kann, werden unter Rühren in 330 Teilen Chlorsulfonsäure gelöst. Nach Zugabe von 3 Teilen Jod erhöht man die Temperatur auf 60-65 C und leitet so lange einen trockenen Chlorstrom ein, bis eine Probe des Reaktionsproduktes sich in konzentrierter Schwefelsäure mit rotstichig blauer Farbe löst. Man lässt erkalten und arbeitet in der üblichen Weise auf.
Process for the preparation of a derivative of 3.4.8.9-dibenzpyrene-6.10-ehinon. The main patent is a process for the presentation of a derivative of 3.4.8.9-dibenzpyrene-5. 10-quinones described, in the 3rd 4th 8th 9-dibenzpyrene-5.10-quinone is treated in an acidic medium in the presence of catalysts with at least 1 mol of a chlorinating agent.
It has now been found that a derivative of the 3rd 4. 8. 9-diberizpyrene-5. 10-quinons of similar properties can be obtained if 3.4.8.9-dibenzpyrene-5.10-quinone is treated in an acidic medium in the presence of catalysts with at least 2 moles of a chlorinating agent.
The reaction product obtained is, according to the analysis, a tetrachloro-3.4: 8.9-dibenzpyrene-5.10-quinone, which dissolves in concentrated sulfuric acid with a reddish-blue color and gives greenish-yellow colorations of very good fastness from a reddish-purple vat.
<I> Example: </I> 33.3 parts of pure 3. 4. 8. 9-Dibenzpyi-en- 5. 10-quinone, as it can be obtained by sublimation, crystallization or by boiling raw dibenzpyrenchinonmit high-boiling solvents, are dissolved in 330 parts of chlorosulfonic acid with stirring. After adding 3 parts of iodine, the temperature is increased to 60-65 ° C. and a stream of dry chlorine is passed in until a sample of the reaction product dissolves in concentrated sulfuric acid with a reddish blue color. You let it cool down and work up in the usual way.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE147047X | 1928-06-30 | ||
CH143710T | 1929-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH147047A true CH147047A (en) | 1931-05-15 |
Family
ID=25714331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH147047D CH147047A (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) | CH147047A (en) |
-
1929
- 1929-06-18 CH CH147047D patent/CH147047A/en unknown
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