DE455700C - Process for the production of green dyes of the benzanthrone series - Google Patents
Process for the production of green dyes of the benzanthrone seriesInfo
- Publication number
- DE455700C DE455700C DEB103369D DEB0103369D DE455700C DE 455700 C DE455700 C DE 455700C DE B103369 D DEB103369 D DE B103369D DE B0103369 D DEB0103369 D DE B0103369D DE 455700 C DE455700 C DE 455700C
- Authority
- DE
- Germany
- Prior art keywords
- production
- green dyes
- dyes
- benzanthrone series
- green
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
- C09B3/22—Dibenzanthrones; Isodibenzanthrones
- C09B3/30—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus
- C09B3/36—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus by etherification of hydroxy compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung von grünen Farbstoffen der Benzanthronreihe. Nach dem Patent 259 37o entstehen bei der Einwirkung von oxydierenden Mitteln auf Dibenzanthron neue Körper, die sich in Reduktionsprodukte überführen lassen. Diese Abkömmlinge des Dibenzanthrons lassen sich durch Erhitzen, zweckmäßig mit höher siedenden Lösungs- oder Suspensionsmitteln, bei Anwesenheit von Kondensationsmitteln gemäß Patentschrift 26o 02o in schöne grüne Küpenfarbstoffe überführen. Die Echtheitseigenschaften-dieser Farbstoffe können. nach Angabe der Patentschrift 28071o durch Behandeln mit Brom während oder nach der Herstellung noch verbessert werden.Process for the preparation of green dyes of the benzanthrone series. According to patent 259 37o, the action of oxidizing agents on dibenzanthrone creates new bodies which can be converted into reduction products. These derivatives of dibenzanthrone can be converted into beautiful green vat dyes by heating, expediently with higher-boiling solvents or suspending agents, in the presence of condensing agents according to patent specification 26o 02o. The fastness properties - these dyes can. according to patent specification 28071o by treatment with bromine during or after production.
Es wurde nun gefunden, daß man die vorstehend genannten, evtl. halogenhaltigen Kondensationsprodukte oxydierter Dibenzanthrone in grüne Farbstoffe von noch besseren Eigenschaften überführen kann, wenn man sie mit alkylierenden Mitteln behandelt. Die neuen Farbstoffe zeichnen sich durch ganz hervorragende Echtheitseigenschaften aus.It has now been found that the above-mentioned, possibly halogen-containing Condensation products of oxidized dibenzanthrones into green dyes of even better ones Properties can be transferred if you treat them with alkylating agents. The new dyes are characterized by very excellent fastness properties the end.
Beispiel. ioTeile des nach dem Beispiel der Patentschrift 26o 02o erhaltenen grünen Küpenfarbstoffes werden zusammen mit i o Teilen Soda in Zoo Teilen Trichlorbenzol suspendiert. Man fügt io Teile Dimethylsulfat hinzu und erhitzt unter Rühren 3 Stunden zum Sieden. Hierauf setzt man weitere 5 Teile Soda und 5 Teile Dimethylsulfat hinzu und erhitzt ern--ut 3 Stunden zum Sieden. Diese Operationen werden noch einige Male wiederholt. Man läßt dann erkalten, saugt ab und reinigt den entstandenen Farbstoff durch Auskochen des Rohproduktes mit Trichlorbenzol. Aus der Trichlorbenzollösung scheidet sich der Farbstoff, erforderlichenfalls nach dem Konzentrieren, in metallisch glänzenden Kristallen ab. Er färbt Baumwolle aus der warmen Hydrosulfitküpe in leuchtend blaustichig grünen Tönen von hervorragender Echtheit an.Example. io parts of the example of the patent specification 26o 02o The resulting green vat dye is used together with 10 parts of soda in zoo parts Trichlorobenzene suspended. 10 parts of dimethyl sulfate are added and the mixture is heated under Stir to boiling for 3 hours. This is followed by another 5 parts of soda and 5 parts Add dimethyl sulfate and heat to boiling again for 3 hours. These operations are repeated a few more times. It is then allowed to cool, vacuumed and cleaned the resulting dye by boiling the crude product with trichlorobenzene. The dye separates from the trichlorobenzene solution, if necessary concentrating, in shiny metallic crystals. He dyes cotton the warm hydrosulfite vat in bright blue-tinged green tones of excellent Authenticity.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB103369D DE455700C (en) | 1922-02-01 | 1922-02-01 | Process for the production of green dyes of the benzanthrone series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB103369D DE455700C (en) | 1922-02-01 | 1922-02-01 | Process for the production of green dyes of the benzanthrone series |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE455700C true DE455700C (en) | 1928-02-10 |
Family
ID=6990722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB103369D Expired DE455700C (en) | 1922-02-01 | 1922-02-01 | Process for the production of green dyes of the benzanthrone series |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE455700C (en) |
-
1922
- 1922-02-01 DE DEB103369D patent/DE455700C/en not_active Expired
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