CH193239A - Process for the preparation of 1: 4-diamino-2: 3-di- (p-amylphenylthiol) anthraquinone disulfonic acid. - Google Patents
Process for the preparation of 1: 4-diamino-2: 3-di- (p-amylphenylthiol) anthraquinone disulfonic acid.Info
- Publication number
- CH193239A CH193239A CH193239DA CH193239A CH 193239 A CH193239 A CH 193239A CH 193239D A CH193239D A CH 193239DA CH 193239 A CH193239 A CH 193239A
- Authority
- CH
- Switzerland
- Prior art keywords
- diamino
- diaminoanthraquinone
- process according
- anthraquinone
- greenish
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von 1:4-Diamino-2:3-di-(p-amylphenylthiol)- anthrachinondisulfosäare. Wir erstellen 1 : 4-Diamino-2 : 3-di-(p-iso- amylphenylthiol) - anthrachinondisulfosäure durch Behandlung von 2 : 3-Dihalogen-1 : 4- diaminoanthrachinon mit p-Isoamylphenyl- mereaptan und Sulfonieren des resultieren den 1 :4-Diamino-2:3-di-(p-isoamylphenyl- thiol)-anthrachinons.
Die Behandlung mit dem p-Isoamylphe- nylmereaptan kann .durch Erhitzung in Py- ridin in Gegenwart von Ätzalkali vorgenom men werden. Die Sulfonierung kann durch Auflösung in konzentrierter 'Schwefelsäure und Zusetzen von Oleum vorgenommen wer den.
1 : 4-Diamino-2 : ,3-di@(p-isoamylphenyl- thiol)-anthrachinondisulfosäure ist neu. Sie ist blau und löst sich in konzentrierter Schwefelsäure mit brauner und in Wasser mit grünlich-blauer Farbe.
Sie färbt Wolle und andere Tierfasern in neutralen oder leicht sauren Bädern vorzugsweise mit dem Zur%tz eines Uilfsfäxbemittels, wie Na- triumcetylsulfat oder Glaubersalz in grün lich-blauen Tönen von guter Festigkeit gegen strenges Waschen, Walken und Licht.
Beispiel: 30 Teile 2 : @3-Dichlor-1 : 4-diaminoanthra- ehinon, 300 Teile Pyridiu, 60 Teile Ätz natronlauge<B>70'</B> Tw. und 60 Teile p-Iso- amylphenylmercaptan (erhalten aus p-Iso- amylanilin durch Diazotierung, ]Kupplung mit ]Kaliumäthylgauthat und Hydrolisieren mit Atznatron)
werden bei 400 C eine Stande lang umgerührt. 300 Teile Alkohol werden zugesetzt, das Produkt wird abfil- triert, mit Alkohol und hernach mit Wasser gewaschen und bei<B>100'</B> getrocknet.
35 Teile des Produktes werden bei 20 C in. 350 Teilen 100%iger Schwefelsäure auf gelöst, 80 Teile Oleum (20% @SO.,) werden zugesetzt und das Gemisch bei<B>25'</B> C um.- gerührt, bis eine Probeportion zeigt, dass die Sulfonierung vollständig ist;
das Produkt wird in 1500 Teile Eiswasser geschüttet, ge filtert, mit Natriumkarbonat neutralisiert, mit 8alz gefällt, abgefiltert, in schwachem Salzwasser gewaschen und bei<B>100'</B> C ge trocknet.
Process for the preparation of 1: 4-diamino-2: 3-di- (p-amylphenylthiol) anthraquinone disulfonic acids. We create 1: 4-diamino-2: 3-di- (p-iso-amylphenylthiol) -anthraquinone disulfonic acid by treating 2: 3-dihalo-1: 4-diaminoanthraquinone with p-isoamylphenyl-mereaptane and sulfonating the resulting 1: 4-diamino-2: 3-di (p-isoamylphenyl thiol) anthraquinones.
The treatment with p-isoamylphenylmereaptane can be carried out by heating in pyridine in the presence of caustic alkali. The sulfonation can be carried out by dissolving in concentrated sulfuric acid and adding oleum to who.
1: 4-Diamino-2:, 3-di @ (p-isoamylphenyl thiol) anthraquinone disulfonic acid is new. It is blue and dissolves in concentrated sulfuric acid with a brown color and in water with a greenish-blue color.
It dyes wool and other animal fibers in neutral or slightly acidic baths, preferably with the addition of an auxiliary agent such as sodium cetyl sulphate or Glauber's salt in greenish-blue shades of good resistance to severe washing, milling and light.
Example: 30 parts of 2: @ 3-dichloro-1: 4-diaminoanthrahinone, 300 parts of Pyridiu, 60 parts of caustic soda solution <B> 70 '</B> Tw. And 60 parts of p-iso-amylphenyl mercaptan (obtained from p -Iso- amylaniline by diazotization,] coupling with] potassium ethyl acetate and hydrolyzing with caustic soda)
are stirred at 400 C for one stand. 300 parts of alcohol are added, the product is filtered off, washed with alcohol and then with water and dried at <B> 100 '</B>.
35 parts of the product are dissolved in 350 parts of 100% sulfuric acid at 20 ° C., 80 parts of oleum (20% SO,) are added and the mixture is stirred at 25 ° C. until a sample serving shows that sulfonation is complete;
the product is poured into 1500 parts of ice water, filtered, neutralized with sodium carbonate, precipitated with salt, filtered off, washed in weak salt water and dried at <B> 100 ° C.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB193239X | 1934-11-14 | ||
CH186846T | 1935-11-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH193239A true CH193239A (en) | 1937-09-30 |
Family
ID=25721423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH193239D CH193239A (en) | 1934-11-14 | 1935-11-14 | Process for the preparation of 1: 4-diamino-2: 3-di- (p-amylphenylthiol) anthraquinone disulfonic acid. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH193239A (en) |
-
1935
- 1935-11-14 CH CH193239D patent/CH193239A/en unknown
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