CH183891A - Process for the preparation of a dye. - Google Patents
Process for the preparation of a dye.Info
- Publication number
- CH183891A CH183891A CH183891DA CH183891A CH 183891 A CH183891 A CH 183891A CH 183891D A CH183891D A CH 183891DA CH 183891 A CH183891 A CH 183891A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- amino
- sep
- carboxylic acid
- preparation
- Prior art date
Links
Description
Verfahren zur Herstellung eines Farbstoffes. Das Hauptpatent betrifft ein Verfahren zur Herstellung eines Farbstoffes, bei dem 1- Amino - 4 - halog ena.nthrachinon - ? - carbon - säuretaurid mit Anilin kondensiert wird.
Es wurde nun gefunden, dass man einen ähnlichen, ebenfalls sehr wertvollen Farb stoff erhält, wenn man 1-Amino-4-halogen- anthrachinon-2-carbonsäuremethyltaurid mit Anilin kondensiert. Die Kondensation wird zweckmässig in Gegenwart von Wasser unter Zusatz von säurebindenden Mitteln und Ka talysatoren ausgeführt.
Der erhaltene Farbstoff, das 1-Amino-4- i anilino - anthrachinon - 2 - carbonsäuremethyl- taurid, färbt Wolle aus saurem Bade in klaren blauen Tönen.
Beispiel 12 Teile 1-Amino-4-bromanthrachinon-2-
EMI0001.0020
bonsäuremethyltaurid <SEP> (erhältlich <SEP> zum <SEP> Bei durch <SEP> Kondensation <SEP> von <SEP> 1- <SEP> Aminoanthra- chinon-2-carbonsäurechlorid mit Methyltaurin in alkalischer Lösung und Bromieren) werden in 100 Teilen Wasser mit 12 Teilen Natrium bicarbonat, 1 Teil Kupfersulfat und 15 Tei len Anilin so lange auf<B>90'</B> C erhitzt, bis die Farbstoffbildung beendet ist. Nach dem Erkalten scheidet man den Farbstoff in der üblichen Weise ab.
Process for the preparation of a dye. The main patent relates to a process for the production of a dye in which 1 - amino - 4 - halogena.nthraquinone -? - carbonic acid tauride is condensed with aniline.
It has now been found that a similar, also very valuable dye is obtained when 1-amino-4-halogenanthraquinone-2-carboxylic acid methyl tauride is condensed with aniline. The condensation is conveniently carried out in the presence of water with the addition of acid-binding agents and catalysts.
The dye obtained, 1-amino-4-i-anilino-anthraquinone-2-carboxylic acid methyl tauride, dyes wool from an acid bath in clear blue tones.
Example 12 parts of 1-amino-4-bromoanthraquinone-2-
EMI0001.0020
Bonsäuremethyltaurid <SEP> (available <SEP> for <SEP> with <SEP> condensation <SEP> of <SEP> 1- <SEP> aminoanthraquinone-2-carboxylic acid chloride with methyl taurine in alkaline solution and bromination) are in 100 parts Water with 12 parts of sodium bicarbonate, 1 part of copper sulfate and 15 parts of aniline are heated to 90 ° C until the dye has ended. After cooling, the dye is separated off in the usual way.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE183891X | 1933-01-21 | ||
| CH178226T | 1933-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH183891A true CH183891A (en) | 1936-04-30 |
Family
ID=25720098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH183891D CH183891A (en) | 1933-01-21 | 1933-12-20 | Process for the preparation of a dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH183891A (en) |
-
1933
- 1933-12-20 CH CH183891D patent/CH183891A/en unknown
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