CH224548A - Process for the preparation of a new dye of the anthraquinone series. - Google Patents
Process for the preparation of a new dye of the anthraquinone series.Info
- Publication number
- CH224548A CH224548A CH224548DA CH224548A CH 224548 A CH224548 A CH 224548A CH 224548D A CH224548D A CH 224548DA CH 224548 A CH224548 A CH 224548A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- anthraquinone series
- new dye
- dye
- bromine
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
Verfahren zur Darstellung eines neuen Farbstoffes der Anthrachinonreihe. Das vorliegende Patent betrifft die Dar stellung eines neuen Farbstoffes der Anthra- chinonreihe und ist dadurch gekennzeichnet, dass man 1,4 - Di - (2',4'- dimethyl) - phenyl- amino-6,7-dichloranthrachinon mit Brom be handelt und die erhaltene bromierte Verbin dung sulfiert.
<I>Beispiel:</I> 10 Teile 1,4-Di-(2',4'-dimethyl)-phenyl- amino-6,7-dichloranthrachinon (erhalten z. B. durch Kondensation von 6,7-Dichlorchinizarin bezw. Leukoverbindung mit Metagylidin) werden in 200 Teilen Chlorbenzol verrührt. Hierauf lässt man 6,5 Teile Brom gelöst in 20 Teilen Chlorbenzol langsam zufliessen. Es wird einige Zeit bei Raumtemperatur gerührt und hierauf so lange auf 30 bis 120 er wärmt, bis die Bromierung beendet ist. Das Chlorbenzol wird nun mit Wasserdampf ab geblasen und die Bromverbindung durch Fil tration abgetrennt.
Die so erhaltene Farb- base, das 1,4-Di-(2'-4'-dimethyl-6'-brom)- phenylamino - 6,7-di - chloranthrachinon löst sich in organischen Lösungsmitteln mit blauer Farbe.
5 Teile der getrockneten Base werden in 15 Teilen Schwefelsäuremonohydrat gelöst, mit 10 Teilen Oleum 28 % versetzt und so lange gerührt, bis eine Probe in Wasser klar löslich ist. Der Farbstoff wird auf übliche Weise, z. B. Eingiessen in Salzlösung, abge trennt und getrocknet.
Der Farbstoff besitzt die Formel
EMI0001.0030
und färbt Wolle in schönen blauen Tönen von vorzüglichen Echtheiten und sehr guter Abendfarbe.
Process for the preparation of a new dye of the anthraquinone series. The present patent relates to the presentation of a new dye of the anthraquinone series and is characterized in that 1,4 - di - (2 ', 4'-dimethyl) - phenylamino-6,7-dichloroanthraquinone be treated with bromine and the brominated compound obtained is sulfated.
<I> Example: </I> 10 parts of 1,4-di- (2 ', 4'-dimethyl) -phenyl-amino-6,7-dichloroanthraquinone (obtained e.g. by condensation of 6,7-dichloroquinizarin or leuco compound with metagylidine) are stirred in 200 parts of chlorobenzene. 6.5 parts of bromine, dissolved in 20 parts of chlorobenzene, are then allowed to flow in slowly. It is stirred for some time at room temperature and then heated to 30 to 120 until the bromination has ended. The chlorobenzene is then blown off with steam and the bromine compound is separated off by filtration.
The color base obtained in this way, 1,4-di- (2'-4'-dimethyl-6'-bromo) -phenylamino-6,7-di-chloranthraquinone, dissolves in organic solvents with a blue color.
5 parts of the dried base are dissolved in 15 parts of sulfuric acid monohydrate, 10 parts of 28% oleum are added and the mixture is stirred until a sample is clearly soluble in water. The dye is applied in a conventional manner, e.g. B. Pouring into saline, separated abge and dried.
The dye has the formula
EMI0001.0030
and dyes wool in beautiful blue tones with excellent fastness properties and very good evening color.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH224548T | 1940-12-13 | ||
CH219415T | 1940-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH224548A true CH224548A (en) | 1942-11-30 |
Family
ID=25726270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH224548D CH224548A (en) | 1940-12-13 | 1940-12-13 | Process for the preparation of a new dye of the anthraquinone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH224548A (en) |
-
1940
- 1940-12-13 CH CH224548D patent/CH224548A/en unknown
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