CH153201A - Process for the preparation of an acidic dye. - Google Patents
Process for the preparation of an acidic dye.Info
- Publication number
- CH153201A CH153201A CH153201DA CH153201A CH 153201 A CH153201 A CH 153201A CH 153201D A CH153201D A CH 153201DA CH 153201 A CH153201 A CH 153201A
- Authority
- CH
- Switzerland
- Prior art keywords
- amino
- preparation
- acidic dye
- wool
- sodium
- Prior art date
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- Coloring (AREA)
Description
Verfahren zur Darstellung eines sauren Farbstoffes. Es wurde gefunden, dass die m-Amino- benzoyl-o-berrzoesäuren oder deren Derivate durch Umsetzung mit 1-Amirto-4-halogenan- thr,achinon-2-sulfosäur@en wertvolle Produkte ergeben, die als saure Wollfarbstoffe oder als Ausgangsstoffe für andere Farbstoffe verwen det werden können.
Zu den gleichen Produkten gelangt man, wenn man die rn-Aminobenzoyl-o-benzoesäu- ren mit 1-Amino-2.4-dihalogenanthrachino- nen kondensiert und in den so gewonnenen 1-Amino-2-halogen-4-arylidoanthrachinonen das Halogenatom, zweckmässig durch Behan deln mit Alkalisulfiten, durch die Sulfogruppe ersetzt.
Gegenstand vorliegender Erfindung ist ein Verfahren zur Darstellung eines sauren Farb- stoffes, welches dadurch gekennzeichnet ist, dass man das Natriumsalz von 3'-Amino-4'- methylbenzophenon-2-karbonsäure der folgen den Formel
EMI0001.0023
mit 1-Amino-4-bromanthrachinon-2-sulfosau- rem Natrium kondensiert.
<I>Beispiel:</I> 51 Gewichtsteile 3'-Amino-4'-methylben- zophenon-2-karbonsäure werden in 700 Ge wichtsteilen Wasser und 30 Gewichtsteilen wasserfreier Soda gelöst, mit 53 Gewichts teilen 1-Amino-4-bromanthrachinon-2-sulfo- saurem Natrium und 2 Gewichtsteilen Kup- ferchlorür versetzt. Die Mischung wird unter gutem Rühren 15 Stunden in mässigem Sie den erhalten. Nach der üblichen Aufarbeitung erhält man den Farbstoff als blaues, kristal linisches Pulver. Er liefert auf Wolle rein blaue Färbungen von guter Licht-, Wasch- und Walkechtheit.
Process for the preparation of an acidic dye. It has been found that the m-Amino-benzoyl-o-berrzoic acids or their derivatives by reaction with 1-Amirto-4-halogenanthr, aquinone-2-sulfonic acids give valuable products that can be used as acidic wool dyes or as starting materials for other dyes can be used.
The same products are obtained if the rn-aminobenzoyl-o-benzoic acids are condensed with 1-amino-2,4-dihaloanthraquinones and the halogen atom is expediently obtained in the 1-amino-2-halo-4-arylidoanthraquinones obtained in this way by treating with alkali sulfites, replaced by the sulfo group.
The present invention relates to a process for the preparation of an acidic dye, which is characterized in that the sodium salt of 3'-amino-4'-methylbenzophenone-2-carboxylic acid of the following formula is used
EMI0001.0023
condensed with 1-amino-4-bromoanthraquinone-2-sulphonic acid rem sodium.
<I> Example: </I> 51 parts by weight of 3'-amino-4'-methylbenzophenone-2-carboxylic acid are dissolved in 700 parts by weight of water and 30 parts by weight of anhydrous soda, with 53 parts by weight of 1-amino-4-bromoanthraquinone -2-sulphonic acid sodium and 2 parts by weight of copper chloride were added. The mixture will be kept in moderate condition for 15 hours with good stirring. After the usual work-up, the dye is obtained as a blue, crystalline powder. On wool it provides pure blue dyeings with good lightfastness, washfastness and milled fastness.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE153201X | 1930-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH153201A true CH153201A (en) | 1932-03-15 |
Family
ID=5675575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH153201D CH153201A (en) | 1930-03-13 | 1931-03-10 | Process for the preparation of an acidic dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH153201A (en) |
-
1931
- 1931-03-10 CH CH153201D patent/CH153201A/en unknown
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