CH147705A - 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
- CH147705A CH147705A CH147705DA CH147705A CH 147705 A CH147705 A CH 147705A CH 147705D A CH147705D A CH 147705DA CH 147705 A CH147705 A CH 147705A
- Authority
- CH
- Switzerland
- Prior art keywords
- dibenzpyrene
- quinone
- derivative
- preparation
- parts
- 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-ä.10-chinons. Im HaAptpatent ist ein Verfahren zur Darstellung eines Derivates des 3 .4.8.9- Dibenzpyren-5.10-chinons beschrieben, bei dem 1 Hol. 3.4.8.9-Dibenzpyren-5.10- chinon in saurem Medium in Gegenwart von Katalysatoren mit mindestens 1 Hol. eines chlorierend wirkenden Mittels behandelt wird.
Es wurde nun gefunden, dass man eben falls einen wertvollen Küpenfarbstoff der Dibenzpyrenchinonreihe erhalten kann, wenn man 1 Hol. 3.4.8.9-Dibenzpyren-5.10- chinon in saurer Lösung in Abwesenheit von Überträgern mit mindestens je 1/2 Hol. eines chlorierend und bromierend wirkenden Mit tels behandelt.
Der erhaltene Farbstoff, ein Chlorbrom 3.4.8. 9-dibenzpyren-5.10-chinon, löst sich in konzentrierter Schwefelsäure mit violett stichig blauer Farbe, liefert eine blaurote Küpe und färbt Baumwolle in orangegelben, klaren, kräftigen Tönen von ausgezeichneter Echtheit.
<I>Beispiel 1:</I> 37 Teile des durch Chlorieren von 3.4.8.9 - Dibenzpyren - 5.10 - chinon in Chlorsulfonsäure erhaltenen Monochlor- 3. 4. B . 9-Dibenzpyren-5. 10-chinons werden in 400 Teilen 23%igem Oleum gelöst. Dar auf gibt man 16 Teile Brom zu, erhöht die Temperatur unter Rühren auf 65 bis 70 C. und hält dabei, bis die Hauptmenge des Broms aufgenommen ist. Dann lässt man er kalten und arbeitet wie üblich auf.
<I>Beispiel 2:</I> 33 Teile 3.4.8.9-I)ibenzpyren-5.10- chinon werden bei 80 C in eine Schmelze von 600 Teilen Eisenchlorid und 15 Teilen Kochsalz eingetragen. Hierauf gibt man bei 75 bis 80 C 25 Teile Brom zu, rührt meh- rere Stunden bei 80 bis 85 C, giesst die Schmelze in verdünnte Säure und saugt ab.
Process for the preparation of a derivative of 3.4.8.9-dibenzpyrene-Ä.10-quinone. The HaAptpatent describes a process for the preparation of a derivative of 3 .4.8.9-dibenzpyrene-5.10-quinone, in which 1 hol. 3.4.8.9-dibenzpyrene-5.10-quinone in an acidic medium in the presence of catalysts with at least 1 hol. a chlorinating agent is treated.
It has now been found that a valuable vat dye of the dibenzpyrenquinone series can also be obtained if 1 haul. 3.4.8.9-dibenzpyrene-5.10-quinone in acidic solution in the absence of carriers with at least 1/2 hol each. treated with a chlorinating and brominating agent.
The dye obtained, a chlorine bromine 3.4.8. 9-dibenzpyrene-5.10-quinone, dissolves in concentrated sulfuric acid with a violet-tinged blue color, provides a blue-red vat and dyes cotton in orange-yellow, clear, strong shades of excellent fastness.
<I> Example 1: </I> 37 parts of the monochloro-3. 4. B obtained by chlorinating 3.4.8.9 - dibenzpyrene - 5.10 - quinone in chlorosulfonic acid. 9-dibenzpyrene-5. 10-quinones are dissolved in 400 parts of 23% strength oleum. 16 parts of bromine are then added, the temperature is increased to 65 to 70 ° C. while stirring and this is maintained until most of the bromine has been absorbed. Then you leave it cold and work up as usual.
<I> Example 2: </I> 33 parts 3.4.8.9-I) ibenzpyrene-5.10-quinone are introduced at 80 ° C. into a melt of 600 parts iron chloride and 15 parts common salt. 25 parts of bromine are then added at 75 to 80 ° C., the mixture is stirred for several hours at 80 to 85 ° C., the melt is poured into dilute acid and filtered off with suction.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE147705X | 1929-03-26 | ||
CH143710T | 1929-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH147705A true CH147705A (en) | 1931-06-15 |
Family
ID=25714340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH147705D CH147705A (en) | 1929-03-26 | 1930-02-11 | Process for the preparation of a derivative of 3.4.8.9-dibenzpyrene-5.10-quinone. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH147705A (en) |
-
1930
- 1930-02-11 CH CH147705D patent/CH147705A/en unknown
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