CH171365A - Process for the production of a carbazole derivative. - Google Patents
Process for the production of a carbazole derivative.Info
- Publication number
- CH171365A CH171365A CH171365DA CH171365A CH 171365 A CH171365 A CH 171365A CH 171365D A CH171365D A CH 171365DA CH 171365 A CH171365 A CH 171365A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- carbazole derivative
- weight
- parts
- formula
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
- C09B5/26—Carbazoles of the anthracene series
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/80—[b, c]- or [b, d]-condensed
- C07D209/82—Carbazoles; Hydrogenated carbazoles
- C07D209/88—Carbazoles; Hydrogenated carbazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
Description
Verfahren zur Herstellung eines Karbazolderivates. Es wurde gefunden, dass ein Karbazol- derivat erhalten werden kann, wenn man die Verbindung der Formel
EMI0001.0004
mit dianotierenden Mitteln behandelt und das entstandene Produkt hierauf auf höhere Temperatur erhitzt.
Das Karbazolderivat der Formel
EMI0001.0006
stellt ein wertvolles Zwischenprodukt zur Herstellung von Farbstoffen dar. Es bildet orange gefärbte' Kristalle, die sich in kon zentrierter Schwefelsäure mit blauer Farbe lösen und die in organischen Lösungsmitteln schwer löslich sind.
Das Karbazolderivat wird besonders glatt erhalten, wenn das Erhitzen auf höhere Tem peratur in Gegenwart eines organischen Lösungsmittels, wie zum Beispiel Nitrobenzol oder Chlornaphthalin, sowie in Gegenwart einer organischen Base, wie. zum Beispiel Dimethylanilin, Diäthylanilin oder Diphenyl- amin erfolgt.
Beispiel: 120 Gewichtsteile o'-Nitranilinoarithra- chinon, das man zum Beispiel durch Um setzung von 1-Aminoarithrachinon mit o-Nitro- chlorbenzol nach Ullmann und Fodor dar stellen kann (siehe A. 380, 327), werden 'mit wenig Sprit angeteigt, hierauf mit 2000 Ge- wichtsteile Wasser von etwa 60 o versetzt. Unter Rühren gibt man nun 800 Gewichts teile 30 %ige Natronlauge zu und streut so dann 360 Gewichtsteile Natriumhydrosulfit ein.
Man hält 1/2 Stunde bei<B>50</B> bis 60 o und oxydiert hierauf mit Luft. Die so dargestellte o'-Aminoanilinoverbindung wird nun mit 2000 Gewichtsteilen Wasser angerührt, mit 100 Gewichtsteilen konzentrierter technischer Salzsäure versetzt und einige Zeit verrührt, dann wird mit Eis gekühlt und eine Natrium nitritlösung entsprechend einem Gehalt von 30 Gewichtsteilen Natriumnitrit langsam zugegeben. Man erhitzt hierauf zum Sieden und filtriert. 50 Gewichtsteile der so erhal tenen Aziminoverbindung werden nun mit 250 Gewichtsteilen Nitrobenzol und 50 Ge wichtsteilen Diäthylanilin solange zum Sieden erhitzt, bis das Ausgangsmaterial verschwun den ist.
Beim Abkühlen kristallisiert das 1.2-Phthaloylkarbazol aus.
Process for the production of a carbazole derivative. It has been found that a carbazole derivative can be obtained when using the compound of the formula
EMI0001.0004
treated with dianotizing agents and the resulting product then heated to a higher temperature.
The carbazole derivative of the formula
EMI0001.0006
is a valuable intermediate product for the production of dyes. It forms orange colored crystals which dissolve in concentrated sulfuric acid with a blue color and which are sparingly soluble in organic solvents.
The carbazole derivative is obtained particularly smoothly when the heating to higher Tem temperature in the presence of an organic solvent such as nitrobenzene or chloronaphthalene, as well as in the presence of an organic base such as. for example dimethylaniline, diethylaniline or diphenylamine takes place.
Example: 120 parts by weight of o'-nitroanilinoarithrachinone, which can be made into a paste with a little fuel, for example by reacting 1-aminoarithraquinone with o-nitrochlorobenzene according to Ullmann and Fodor (see A. 380, 327) , then mixed with 2000 parts by weight of water at about 60 o. 800 parts by weight of 30% sodium hydroxide solution are then added with stirring, and 360 parts by weight of sodium hydrosulfite are then sprinkled in.
It is held at <B> 50 </B> to 60 o for 1/2 hour and then oxidized with air. The o'-aminoanilino compound thus prepared is now mixed with 2000 parts by weight of water, 100 parts by weight of concentrated technical hydrochloric acid are added and the mixture is stirred for some time, then it is cooled with ice and a sodium nitrite solution corresponding to 30 parts by weight of sodium nitrite is slowly added. It is then heated to the boil and filtered. 50 parts by weight of the azimino compound obtained in this way are then heated to boiling with 250 parts by weight of nitrobenzene and 50 parts by weight of diethylaniline until the starting material has disappeared.
The 1,2-phthaloyl carbazole crystallizes out on cooling.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH171365T | 1933-07-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH171365A true CH171365A (en) | 1934-08-31 |
Family
ID=4423030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH171365D CH171365A (en) | 1933-07-20 | 1933-07-20 | Process for the production of a carbazole derivative. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH171365A (en) |
-
1933
- 1933-07-20 CH CH171365D patent/CH171365A/en unknown
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