CH239953A - Process for the production of a vat dye. - Google Patents
Process for the production of a vat dye.Info
- Publication number
- CH239953A CH239953A CH239953DA CH239953A CH 239953 A CH239953 A CH 239953A CH 239953D A CH239953D A CH 239953DA CH 239953 A CH239953 A CH 239953A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- production
- vat
- vat dye
- red
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Küpenfarbstoffes. Es wurde gefunden, dass ein wertvoller Küpenfarbstoff hergestellt werden kann, wenn man 1-Amino-4-benzoylaminoanthra- chinon mit Mitteln behandelt, die imstande sind, den Rest
EMI0001.0007
einzuführen.
Der neue Farbstoff bildet rote Kristalle vom Schmelzpunkt 363-ä65 , die sich in konz. Schwefelsäure mit roter Farbe lösen und Baumwolle aus schwarzvioletter Küpe in echten, leuchtend roten Tönen färbt.
Als Mittel, die imstande sind, den Rest
EMI0001.0015
einzuführen, sind die 4-Phenylsulfonbenzol- 1-carbonsäure sowie ihre funktionellen Deri vate zu erwähnen. Besonders zweckmässig ist die Verwendung der entsprechenden Säure halogenide,insbesondere des Säurechlorids. Die Umsetzung erfolgt zweckmässig in hochsiedenden Lösungsmitteln, wie Nitroben- zol oder ortho-Dichlorbenzol bei erhöhter Temperatur.
Beispiel: 13 Teile 4-Phenylsulfonbenzol-l-carbon- säure werden in 320 Teilen wasserfreiem o- Dichlorbenzol verteilt und die Mischung wird nach Zufügen von 40 Teilen Thionylchlorid und einer geringen Menge Pyridin zuerst eine Stunde bei 80=90", dann eine weitere Stunde bei 100-110 unter Rühren gehalten.
Hier auf destilliert man das überschüssige Thionyl- chlorid und etwas o-Dichlorbenzol ab und er mässigt die Temperatur auf 100 , gibt 17,25 Teile 1-Amino-4-benzoylaminoanthrachinon hinzu und rührt 2 Stunden bei 170-175 , schliesslich 1/4 Stunde bei .Siedetemperatur. Nach dem Erkalten wird das ausgeschiedene 1- (4'@ Phenylsulfonbenzoylamino) -4-benzoyl- aminoanthrachinon abfiltriert, mit Alkohol ausgewaschen und getrocknet.
Process for the production of a vat dye. It has been found that a valuable vat dye can be made by treating 1-amino-4-benzoylaminoanthraquinone with agents that are able to do the rest
EMI0001.0007
to introduce.
The new dye forms red crystals with a melting point of 363-65, which are in conc. Dissolve sulfuric acid with red color and dye cotton from a black-violet vat in real, bright red tones.
As means that are able to do the rest
EMI0001.0015
to be introduced, the 4-phenylsulfonbenzene-1-carboxylic acid and its functional derivatives should be mentioned. The use of the corresponding acid halides, in particular the acid chloride, is particularly useful. The reaction is expediently carried out in high-boiling solvents such as nitrobenzene or ortho-dichlorobenzene at elevated temperature.
Example: 13 parts of 4-phenylsulfonbenzene-1-carboxylic acid are distributed in 320 parts of anhydrous o-dichlorobenzene and, after adding 40 parts of thionyl chloride and a small amount of pyridine, the mixture is first at 80 = 90 "for one hour, then for another hour kept at 100-110 with stirring.
Here, the excess thionyl chloride and some o-dichlorobenzene are distilled off and the temperature is reduced to 100, 17.25 parts of 1-amino-4-benzoylaminoanthraquinone are added and the mixture is stirred at 170-175 for 2 hours, finally 1/4 hour at .boiling temperature. After cooling, the precipitated 1- (4 '@ Phenylsulfonbenzoylamino) -4-benzoylaminoanthraquinone is filtered off, washed with alcohol and dried.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH239953T | 1943-11-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH239953A true CH239953A (en) | 1945-11-30 |
Family
ID=4461527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH239953D CH239953A (en) | 1943-11-01 | 1943-11-01 | Process for the production of a vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH239953A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE962627C (en) * | 1954-02-07 | 1957-04-25 | Basf Ag | Process for the production of Kuepen dyes of the anthraquinone series |
-
1943
- 1943-11-01 CH CH239953D patent/CH239953A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE962627C (en) * | 1954-02-07 | 1957-04-25 | Basf Ag | Process for the production of Kuepen dyes of the anthraquinone series |
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