CH187430A - Process for the preparation of a new anthraquinone dye. - Google Patents
Process for the preparation of a new anthraquinone dye.Info
- Publication number
- CH187430A CH187430A CH187430DA CH187430A CH 187430 A CH187430 A CH 187430A CH 187430D A CH187430D A CH 187430DA CH 187430 A CH187430 A CH 187430A
- Authority
- CH
- Switzerland
- Prior art keywords
- amino
- butylanilidoanthraquinone
- preparation
- dye
- sulfite
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines neuen Anthrachinon-Farbstoffes. Wir haben gefunden, dass ein neuer An- thrachinonfarbstoff, die 1 - Amino - 4 - p - n butylanilidoanthrachinon-2-sulfonsäure durch Behandeln des 1- Amino-2-halogen-4-p-n- butylanilidoanthracIiinons mittels eines lös lichen Sulfites erhalten werden kann.
Der Farbstoff löst sich in Wasser mit einer hellblauen Farbe und in konzentrier ter Schwefelsäure mit einer schwach bläu lichgrünen Farbe, die durch Zusatz von Formaldehyd tiefblau wird. Er färbt Wolle aus einem neutralen oder schwach sauren Bade in Gegenwart eines Hilfsfärbemittels, wie Natriumcetylsulfat oder Glaubersalz, in einem hellblauen Ton von ausgezeichneter \Vasch- und Walkeehtheit.
<I>Beispiel:</I> 10 Teile I -Amino-2-brom-4-p-n-butyl- anilidoanthrachinon (erhalten durch Konden sation von 1 : 3-Dibrom-4-aminoanthrachinon mit p-n-Butylanilin) werden in 240 Teilen geschmolzenem Phenol gelöst, in einem Auto klaven mit einer Lösung von 100 Teilen kristallinischem Nati-iumsulfit in 120 Teilen Wasser gemischt und das Gemisch während 6 Stunden auf<B>170'</B> C erhitzt.
Das Produkt wird filtriert, getrocknet und von den Un- reinigkeiten durch Extrahieren mit Benzol gereinigt.
Process for the preparation of a new anthraquinone dye. We have found that a new anthraquinone dye, the 1-amino-4-p-n-butylanilidoanthraquinone-2-sulfonic acid, can be obtained by treating the 1-amino-2-halo-4-p-butylanilidoanthracinone with a soluble sulfite .
The dye dissolves in water with a light blue color and in concentrated sulfuric acid with a pale bluish-green color that turns deep blue when formaldehyde is added. He dyes wool from a neutral or slightly acidic bath in the presence of an auxiliary dye, such as sodium cetyl sulfate or Glauber's salt, in a light blue shade of excellent bleach and fullness.
<I> Example: </I> 10 parts of I-amino-2-bromo-4-pn-butyl anilidoanthraquinone (obtained by condensation of 1: 3-dibromo-4-aminoanthraquinone with pn-butylaniline) are in 240 parts dissolved molten phenol, mixed in an autoclave with a solution of 100 parts of crystalline sodium sulfite in 120 parts of water and the mixture was heated to 170 ° C. for 6 hours.
The product is filtered, dried and cleaned of the impurities by extraction with benzene.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB187430X | 1934-10-31 | ||
CH187430T | 1935-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH187430A true CH187430A (en) | 1936-11-15 |
Family
ID=25721536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH187430D CH187430A (en) | 1934-10-31 | 1935-10-31 | Process for the preparation of a new anthraquinone dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH187430A (en) |
-
1935
- 1935-10-31 CH CH187430D patent/CH187430A/en unknown
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