CH180963A - Process for the production of a vat dye. - Google Patents
Process for the production of a vat dye.Info
- Publication number
- CH180963A CH180963A CH180963DA CH180963A CH 180963 A CH180963 A CH 180963A CH 180963D A CH180963D A CH 180963DA CH 180963 A CH180963 A CH 180963A
- Authority
- CH
- Switzerland
- Prior art keywords
- blue
- production
- violet
- vat dye
- anthraquinonyl
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Küpenfarbstoffes. Es wurde gefunden, dass man einen neuen wertvollen Küpenfarbstoff erhält, wenn man 1 . 4-Diamino-2-anthrachinonyl-2'. 3'-anthra- chinonoxazol mit Benzoylchlorid umsetzt.
Das als Ausgangsstoff dienende 1.4- Diamino - 2 - anthrachinonyl - 2'. 3' - anthra - chinonoxazol lässt sich beispielsweise wie folgt herstellen:
40 Teile 1-Amino-4-nitro-2-anthrachino- nyl - 2' . 3' - anthrachinonoxazol (hergestellt zum Beispiel durch Kondensation von 1- Amino- 4 -nitroanthrachinon- 2, -carbonsäure- chlorid mit 2-Amino-3-oxyanthrachinon und Überführung des so erhaltenen 1-Amino-4- nitroanthrachinon - 2 - carbonylamino - 2' .
3'- oxyanthrachinons mit p-Toluolsulfonsäure in den entsprechenden Oxazolabkömmling) wer den in Pastenform mit 2000 Teilen Wasser und 80 Teilen Natriumsulfid unter Rühren solange auf<B>90'</B> C erhitzt, bis kein unver änderter Ausgangsstoff mehr nachweisbar ist.
Man saugt ab und befreit durch Wa- scheu mit Wasser vom Natriumsulfid. Das so erhaltene 1 . 4-Diamino-2-anthrachino- nyl-2'. 3'-anthrachinonoxazol ist ein violett blaues Pulver, das sich in konzentrierter Schwefelsäure mit olivgrüner Farbe löst und aus braunvioletter Küpe Baumwolle grün stichig blau färbt.
<I>Beispiel:</I> Eine Mischung von. 10 Teilen 1 . 4- Diamino - 22 - anthrachinonyl - 2'. 3' - anthra- chinonoxazol, 100 Teilen Nitrobenzol, 10 Teilen Benzoylchlorid und 1 Teil Pyridin wird solange auf 120' C erhitzt, bis kein Ausgangsstoff mehr nachweisbar ist.
Das so erhaltene 1-Amino-4-benzoylamino-2-an- thrachinonyl-2' . 3'-anthrachinonoxazol bildet blauviolette Nadeln; es löst sich in konzen trierter Schwefelsäure mit braunoliver Farbe und liefert aus blauvioletter Küpe auf pflanzlichen Fasern hervorragend licht- und chlorechte blaue Farbtöne.
Process for the production of a vat dye. It has been found that a new valuable vat dye is obtained if 1. 4-diamino-2-anthraquinonyl-2 '. 3'-anthraquinone oxazole is reacted with benzoyl chloride.
The 1,4-diamino-2-anthraquinonyl-2 'used as starting material. 3 '- anthra - quinonoxazole can be produced, for example, as follows:
40 parts of 1-amino-4-nitro-2-anthraquinonyl - 2 '. 3 '- anthraquinone oxazole (produced for example by condensation of 1- amino-4-nitroanthraquinone- 2, -carboxylic acid chloride with 2-amino-3-oxyanthraquinone and conversion of the 1-amino-4-nitroanthraquinone - 2 - carbonylamino - 2 '.
3'-oxyanthraquinones with p-toluenesulfonic acid in the corresponding oxazole derivative) who in paste form with 2000 parts of water and 80 parts of sodium sulfide are heated to 90 ° C with stirring until no unchanged starting material is detectable.
It is filtered off with suction and freed from sodium sulfide by washing with water. The 1. 4-diamino-2-anthraquinonyl-2 '. 3'-anthraquinone oxazole is a violet-blue powder, which dissolves in concentrated sulfuric acid with an olive-green color and turns brown-violet cotton into a green, tinted blue color.
<I> Example: </I> A mixture of. 10 parts 1. 4 - diamino - 22 - anthraquinonyl - 2 '. 3 '- anthraquinonoxazole, 100 parts of nitrobenzene, 10 parts of benzoyl chloride and 1 part of pyridine are heated to 120 ° C. until no more starting material can be detected.
The 1-amino-4-benzoylamino-2-anthrachinonyl-2 'obtained in this way. 3'-anthraquinone oxazole forms blue-violet needles; It dissolves in concentrated sulfuric acid with an olive-brown color and, from a blue-violet vat on plant fibers, delivers excellent light- and chlorine-fast blue tones.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE180963X | 1934-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH180963A true CH180963A (en) | 1935-11-30 |
Family
ID=5713691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH180963D CH180963A (en) | 1934-02-01 | 1935-01-29 | Process for the production of a vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH180963A (en) |
-
1935
- 1935-01-29 CH CH180963D patent/CH180963A/en unknown
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