CH191852A - Process for the preparation of 1-amino-4-m-carbododecoxy-aniline anthraquinone-2-sulfonic acid. - Google Patents
Process for the preparation of 1-amino-4-m-carbododecoxy-aniline anthraquinone-2-sulfonic acid.Info
- Publication number
- CH191852A CH191852A CH191852DA CH191852A CH 191852 A CH191852 A CH 191852A CH 191852D A CH191852D A CH 191852DA CH 191852 A CH191852 A CH 191852A
- Authority
- CH
- Switzerland
- Prior art keywords
- amino
- anthraquinone
- acid
- sulfonic acid
- blue
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von 1-Amino-4-m-karbododekogy-anilinanthraehinon-2- snlfosäure. Gemäss vorliegender Erfindung erhält man den neuen FaTbstoff, die 1-Amino-4-m- karbododekoxyanilinanthrachinon - 2 - sulfo- säure, durch Esterifizierung der 1-Amino-4- m - karboxyanilinanthrachinon - 2 -sulfasäure mit Dodecylalkohol.
Die Esterifizierung wird zweckmässig durch Erhitzender Anthrachinonverbindung mit D@od.ecylalkohol in Gegenwart von kon- zentrierter .Schwefelsäure oder Chlorsulfon- säure als Katalysator ausgeführt.
Die 1-Amino-4-m-kazbododekoxyanilin- anthraehinon=2-sulfosäure ist ein blaues Pul ver, das sich in konzentrierter Schwefelsäure mit grünliohblauer Farbe löst und in heissem Wasser eine hellblaue, schäumende Lösung gibt. Seine wässerige Lösung färbt Wolle in hellen, haltbaren, blauen Tönen.
<I>Beispiel:</I> 50 Teile 1-Amino-4-m-karboxyanilin- anthraehinon-2-sulfosäure, 2,50 Tsii.e Dode- cylalkohol und 10 Teile 1@00,%ige Schwefel säure werden zusammen während 30 Minu ten auf<B>150'</B> C erhitzt, d. h. bis die Estari- fizierung der Karboxylsäure vollständig ist. Dem während der Reaktion entstandenen Wasser wird die Möglichkeit gegeben, zu entweichen.
Das Gemisch wird auf 10 & ' C abgekühlt, 750 Teile Ligroin (Sdpt. 60 bis <B>80'</B> C) werden zugefügt, das Produkt nach Erkalten filtriert und mit Ligroin gewaschen.
Es wird dann in 3,00 Teilen Wasser von <B>80'</B> C gelöst, mit Natriumkarbonat neutrali siert, die Lösung heiss filtriert und der Farb stoff mit Salz aus@gsfällt. Er wird dann. kalt filtriert, mit 5 % iger Salzlösung gewaschen und bei<B>1,00'</B> C getrocknet.
Process for the preparation of 1-amino-4-m-karbododekogy-anilinanthraehinon-2-snlfosäure. According to the present invention, the new dye, 1-amino-4-m-carbododecoxyaniline anthraquinone-2-sulfonic acid, is obtained by esterification of 1-amino-4-m-carboxyaniline anthraquinone-2-sulfic acid with dodecyl alcohol.
The esterification is expediently carried out by heating the anthraquinone compound with D@od.ecyl alcohol in the presence of concentrated sulfuric acid or chlorosulfonic acid as a catalyst.
The 1-amino-4-m-kazbododekoxyaniline anthraehinone = 2-sulfonic acid is a blue powder that dissolves in concentrated sulfuric acid with a greenish blue color and gives a light blue, foaming solution in hot water. Its aqueous solution dyes wool in light, durable, blue tones.
<I> Example: </I> 50 parts of 1-amino-4-m-carboxyaniline-anthraehinone-2-sulfonic acid, 2.50 Tsii.e dodecyl alcohol and 10 parts of 1 @ 00,% sulfuric acid are combined during Heated to <B> 150 '</B> C for 30 minutes, d. H. until the estarification of the carboxylic acid is complete. The water formed during the reaction is given the opportunity to escape.
The mixture is cooled to 10 ° C., 750 parts of ligroin (bp. 60 to 80 ° C) are added, the product is filtered after cooling and washed with ligroin.
It is then dissolved in 3.00 parts of water at <B> 80 '</B> C, neutralized with sodium carbonate, the solution is filtered while hot and the dye is precipitated with salt. He will then. Filtered cold, washed with 5% saline solution and dried at <B> 1.00 '</B> C.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191852X | 1936-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH191852A true CH191852A (en) | 1937-07-15 |
Family
ID=10125151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH191852D CH191852A (en) | 1936-01-22 | 1937-01-22 | Process for the preparation of 1-amino-4-m-carbododecoxy-aniline anthraquinone-2-sulfonic acid. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH191852A (en) |
-
1937
- 1937-01-22 CH CH191852D patent/CH191852A/en unknown
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