CH130159A - Process for the preparation of a vat dye of the anthraquinone series. - Google Patents
Process for the preparation of a vat dye of the anthraquinone series.Info
- Publication number
- CH130159A CH130159A CH130159DA CH130159A CH 130159 A CH130159 A CH 130159A CH 130159D A CH130159D A CH 130159DA CH 130159 A CH130159 A CH 130159A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- amino
- anthraquinone
- vat dye
- anthraquinone series
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Küpenfarbstoffes der Anthrachinonreihe. Es wurde gefunden, dass man zu einem neuen wertvollen Küpenfarbstoff der Anthra- chinonreihe gelangt, wenn man das Ein wirkungsprodukt von 1-Amino-2-oxyanthra- chinon auf ein solches 1-Aminoanthrachinon, das in 2-Stellung einen,Substituenten besitzt, der befähigt ist,
das zur Bildung eines Oxazolringes erforderliche ,u-gohlenstoff- atom zu liefern, durch Erhitzen kondensiert. Dies kann beispielsweise in der Weise ge schehen, da.B man zuersü 1-Amino-2-oxy- anthrachinon und zum Beispiel 1,2-Amino- anthrachinonaldehyd in Gegenwart eines indifferenten Verdünnungsmittels zusam menbringt und darauf die Reaktionslösung zum Sieden erhitzt.
Statt des 1,2-Amino- anthrachinona.Idehyds kann man auch zum Beispiel das 1,2-Aminoanthrachinoncarbon- säurechlorid verwenden, sowie Substanzen, die während der Reaktion in den entspre chenden Aldehyd bezw. das entsprechende Säurederivat übergehen können.
Der neue Farbstoff, der sich in Schwefelsäure mit oliver Farbe löst und eine hervorragende Affinität zur Faser besitzt, färbt Baum wolle aus violettstichig roter Hydrosulfit- küpe in gleicher Farbe an und geht nach der Oxydation in ein sehr echtes, blau stichiges Rot über.
<I>Beispiel</I> 1 Teil 1-Aminoanthrachinon-2-carbon- säurechlorid und 1-Amino-2-oxyanthrachi- non werden in 10 Teilen Nitrobenzol eine Stunde lang auf 120 bis<B>130'</B> erhitzt, wo bei sich vorübergehend ein Einwirkungs- produkt bildet, welches das zur Bildung eines Oxazolringes erforderliche ,u-gohlen- stoffatom enthält;
darauf wird die Tempera tur allmählich zum Sieden gesteigert und das Gemisch so lange im Sieden erhalten, bis eine weitere Farbstoffbildung nicht mehr zu bemerken ist. Nach dem Erkalten wird der Farbstoff abgesaugt.
Process for the preparation of a vat dye of the anthraquinone series. It has been found that one arrives at a new valuable vat dye of the anthrachinone series, if one has the effect product of 1-amino-2-oxyanthraquinone on such a 1-aminoanthraquinone, which has a substituent in the 2-position is capable
the u-carbon atom required to form an oxazole ring is condensed by heating. This can be done, for example, in such a way that zuersü 1-amino-2-oxy-anthraquinone and, for example, 1,2-amino-anthraquinone aldehyde are brought together in the presence of an inert diluent and the reaction solution is then heated to the boil.
Instead of the 1,2-amino anthraquinone.Idehyde, for example, the 1,2-aminoanthraquinone carbonic acid chloride can also be used, as well as substances that are converted into the corresponding aldehyde during the reaction. the corresponding acid derivative can pass over.
The new dye, which dissolves in sulfuric acid with an olive color and has an excellent affinity for fibers, dyes cotton from a purple-tinged red hydrosulfite vat in the same color and, after oxidation, turns into a very real, blue-tinged red.
<I> Example </I> 1 part of 1-aminoanthraquinone-2-carboxylic acid chloride and 1-amino-2-oxyanthraquinone are heated in 10 parts of nitrobenzene to 120 to 130 'for one hour where a product of action temporarily forms which contains the u-carbon atom required for the formation of an oxazole ring;
then the temperature is gradually raised to boiling and the mixture is kept boiling until further dye formation is no longer noticeable. After cooling, the dye is suctioned off.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE130159X | 1926-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH130159A true CH130159A (en) | 1928-11-30 |
Family
ID=5663461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH130159D CH130159A (en) | 1926-08-13 | 1927-08-12 | Process for the preparation of a vat dye of the anthraquinone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH130159A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE970477C (en) * | 1951-01-20 | 1958-09-25 | Alpine Ag Eisengiesserei Und M | Circulating air sifter |
-
1927
- 1927-08-12 CH CH130159D patent/CH130159A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE970477C (en) * | 1951-01-20 | 1958-09-25 | Alpine Ag Eisengiesserei Und M | Circulating air sifter |
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