CH225713A - Process for the production of a nitrogen-containing condensation product. - Google Patents
Process for the production of a nitrogen-containing condensation product.Info
- Publication number
- CH225713A CH225713A CH225713DA CH225713A CH 225713 A CH225713 A CH 225713A CH 225713D A CH225713D A CH 225713DA CH 225713 A CH225713 A CH 225713A
- Authority
- CH
- Switzerland
- Prior art keywords
- condensation product
- nitrogen
- containing condensation
- sulfuric acid
- production
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 218368. "Verfahren zur Herstellung eines stickstoffhaltigen Kondensationsproduktes. Es wurde gefunden, dass .ein. stickstoff haltiges Kondensationsprodukt hergestellt werden kann, wenn. man auf Di-(4'-benzoyl- amino -<B>l-</B> 'anthrachinonyl) - 2,6 - diaminonaph- thalin kondensierende Mittel einwirken lässt.
Das stickstoffhaltige Kondensationspro dukt bildet ein dunkles Pulver, das sich in konzentrierter Schwefelsäure mit grüner Farbe löst und Baumwolle aus blauroter Küpe in kräftigen sehr echten violetten Tönen färbt.
Die Einwirkung kondensierender Mittel, die oxydierend wirken können, wie z. B. Aluminiumohlorid, ,gegebenenfalls in Gegen wart organischer Säurechloride und von Ver- dünnungs- oder Lösungsmitteln, kann bei höherer oder niederer Temperatur erfolgen. Als Kondensationsmittel besonders geeignet sind Schwefelsäure und ihre Derivate, die zweckmässig bei niederer Temperatur ange wandt werden. Sehr wahrscheinlich werden bei der Einwirkung kondensierender Mittel Karbazolringe gebildet.
Das neue stickstoffhaltige Kondensations produkt kann durch ein- oder mehrmaliges Kristallisieren aus organischen Lösungs mitteln oder durch Behandlung mit oxydie renden Mitteln, wie z. B. Alkalinitritlösung in saurem Medium, Alkalihypochloritlösung oder Perboratlösung, gereinigt werden. Hier bei wird die schon an der Luft erfolgende Oxydation allfällig entstandener wasserstoff reicherer Zwischenprodukte zu Ende geführt.
<I>Beispiel:</I> 3 Teile Di-(4'-benzoylamino-1'-anthra- .chinonyl)-2,6-diaminonaphthalin (siehe Pa tentschrift Nr.212331) werden bei einer Temperatur von 0-6 in 54 Teile 96 %iger Schwefelsäure eingetragen und 18 Stunden bei .dieser Temperatur gerührt. Zur Beendi gung der Farbstoffbildung wird in Eis, dem etwas Natriumnitrit zugefügt worden ist, eingetragen, 11/2, Stunden kräftig gerührt und hierauf filtriert,
ausgewaschen und ge trocknet.
<B> Additional patent </B> to main patent no. 218368. "Process for the preparation of a nitrogen-containing condensation product. It has been found that .a. Nitrogen-containing condensation product can be prepared if .di- (4'-benzoylamino - <B> l- </B> 'anthraquinonyl) - 2,6 - diaminonaphthalene condensing agents can act.
The nitrogen-containing condensation product forms a dark powder that dissolves in concentrated sulfuric acid with a green color and dyes cotton from a blue-red vat in strong, very genuine purple tones.
The action of condensing agents that can have an oxidizing effect, such as. B. aluminum chloride, optionally in the presence of organic acid chlorides and diluents or solvents, can be carried out at higher or lower temperatures. Sulfuric acid and its derivatives, which are expediently applied at low temperature, are particularly suitable as condensing agents. Carbazole rings are very likely to be formed upon exposure to condensing agents.
The new nitrogen-containing condensation product can medium by one or more crystallization from organic solvents or by treatment with oxydie-generating agents, such as. B. Alkali nitrite solution in an acidic medium, alkali hypochlorite solution or perborate solution. Here at the oxidation already taking place in the air of any hydrogen-rich intermediate products that have arisen is brought to an end.
<I> Example: </I> 3 parts of di- (4'-benzoylamino-1'-anthra-quinonyl) -2,6-diaminonaphthalene (see patent specification No. 212331) are at a temperature of 0-6 in Entered 54 parts of 96% sulfuric acid and stirred at this temperature for 18 hours. To complete the formation of the dye, it is added to ice to which a little sodium nitrite has been added, stirred vigorously for 11/2 hours and then filtered,
washed out and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH225713T | 1938-11-29 | ||
CH218368T | 1938-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH225713A true CH225713A (en) | 1943-02-15 |
Family
ID=25726165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH225713D CH225713A (en) | 1938-11-29 | 1938-11-29 | Process for the production of a nitrogen-containing condensation product. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH225713A (en) |
-
1938
- 1938-11-29 CH CH225713D patent/CH225713A/en unknown
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