CH191744A - Process for the preparation of 1: 4-di-p-iso-amylaniline-5-hydroxyanthraquinone disulfonic acid. - Google Patents
Process for the preparation of 1: 4-di-p-iso-amylaniline-5-hydroxyanthraquinone disulfonic acid.Info
- Publication number
- CH191744A CH191744A CH191744DA CH191744A CH 191744 A CH191744 A CH 191744A CH 191744D A CH191744D A CH 191744DA CH 191744 A CH191744 A CH 191744A
- Authority
- CH
- Switzerland
- Prior art keywords
- amylaniline
- iso
- acid
- leuco
- preparation
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von 1:4-Di-p-iso-amylanilin-6- hydr ogyanthrachinondisulfosäure. Wir gewinnen 1 : 4-Di-p-iso-amylanilin=,5- hydroxyanthrachino@ndisulfosäure durch Be handlung des Leuko-1 : 4 : 5-trihydroxyanthra- chinons, welches 1 :4:
5-Trihydroxyanthra- chinon enthalten kann, mit p-Iso-amylanilin und nachfolgendem Sulfonieren des erhalte nen 1:4-Di-p-iso-amylanilin-5-hydroxy- anthra.chinons.
Die Behandlung mit p-Iso-amylanilin kann in Gegenwart von gresolsäure und Zu fügen von Borsäure geschehen. Die Sulfo- nierung kann durch Auflösendes 1 : 4-Di-p- iso - amylanilin - 5 - hydroxyanthrachinons in konzentrierter Schwefelsäure und Zufügen von Oleumausgeführt werden.
Die 1 :4-Di-p-iso-amylanilin-,5-hydroxy- anthra:chinondisulfosäure ist neu.,Sie ist :grün und löst sich in Wasser mit grüner Farbe. Sie färbt Wolle und andere tierische Fasern .in neutralem oder leicht saurem Bade, mit Vor zug in Gegenwart eines Hilfs-Färbemittels, wie Natrium-Cetylsulfat oder Glaubersalz, in gelblieh-grünen Tönen von besonderer Festig keit gegen strenges Waschen, Walken und Lieht.
<I>Beispiel:</I> 6 Teile Leuko-1 : 4 : 5-trihydroxyanthra- chinon, 10 Teile p-Iso-amylanilin, 30 Teile gresolsäure und 5 Teile Borsäure werden miteinander bei<B>130'</B> C während 2,0,Stunden umgerührt. Das Gemisch wird gekühlt und dann 50 Teile Äthylalkohol und 10 Teile kaustischer Sodalösung <B>(70'</B> Tw.) zugege ben und gut durchgemischt. Das Produkt wird filtriert,
mit Alkohol und dann mit Wassergewaschen und .getrocknet. Das Prä parat wird in 40 Teile einer 100 % igen Schwe felsäure bei 25 bis 30 C gelöst, und 20 % iges Oleum in kleinen Mengen so lange zugefügt, bis eine Probeportion sich in kaltem Wasser löst und diese Lösung mit zugefügtem Benzol keine Färbung gibt.
Das Produkt wird dann in Eiswasser gegossen, filtriert und mit ge- sättigtemSalzwasser gewaschen. Der Roh farbstoff wird in heissem Wasser .gelöst, mit kaustischer Soda alkalisch .gemacht und das Natriumsalz des Farbstoffes mit Salz aus gefällt, filtriert und mit 10 %ibem Salzwasser gewaschen.
Process for the preparation of 1: 4-di-p-iso-amylaniline-6-hydrogyanthraquinone disulfonic acid. We obtain 1: 4-di-p-iso-amylaniline =, 5- hydroxyanthraquinone @ ndisulfonic acid by treating the leuco-1: 4: 5-trihydroxyanthraquinone, which is 1: 4:
May contain 5-trihydroxyanthraquinone, with p-iso-amylaniline and subsequent sulfonation of the 1: 4-di-p-iso-amylaniline-5-hydroxyanthraquinone obtained.
The treatment with p-iso-amylaniline can be done in the presence of gresolic acid and to add boric acid. The sulfonation can be carried out by dissolving the 1: 4-di-p-iso-amylaniline-5-hydroxyanthraquinone in concentrated sulfuric acid and adding oleum.
The 1: 4-di-p-iso-amylaniline, 5-hydroxy-anthra: quinondisulfonic acid is new., It is: green and dissolves in water with a green color. It dyes wool and other animal fibers in a neutral or slightly acidic bath, preferably in the presence of an auxiliary dye such as sodium cetyl sulfate or Glauber's salt, in yellowish-green shades of particular strength against severe washing, fulling and letting.
<I> Example: </I> 6 parts of leuco-1: 4: 5-trihydroxyanthraquinone, 10 parts of p-iso-amylaniline, 30 parts of gresolic acid and 5 parts of boric acid are mixed together at <B> 130 '</B> C stirred for 2.0 hours. The mixture is cooled and then 50 parts of ethyl alcohol and 10 parts of caustic soda solution (70 'Tw.) Are added and mixed thoroughly. The product is filtered,
Washed with alcohol and then with water and dried. The preparation is dissolved in 40 parts of a 100% sulfuric acid at 25 to 30 C, and 20% oleum is added in small amounts until a sample portion dissolves in cold water and this solution with added benzene is no color.
The product is then poured into ice water, filtered and washed with saturated salt water. The crude dye is dissolved in hot water, made alkaline with caustic soda and the sodium salt of the dye is precipitated with salt, filtered and washed with 10% salt water.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191744X | 1934-11-14 | ||
CH185954T | 1935-11-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH191744A true CH191744A (en) | 1937-06-30 |
Family
ID=25721323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH191744D CH191744A (en) | 1934-11-14 | 1935-11-14 | Process for the preparation of 1: 4-di-p-iso-amylaniline-5-hydroxyanthraquinone disulfonic acid. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH191744A (en) |
-
1935
- 1935-11-14 CH CH191744D patent/CH191744A/en unknown
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