CH295295A - Process for the preparation of a derivative of 4,4'-diamino-stilbene-disulfonic acid- (2,2 '). - Google Patents
Process for the preparation of a derivative of 4,4'-diamino-stilbene-disulfonic acid- (2,2 ').Info
- Publication number
- CH295295A CH295295A CH295295DA CH295295A CH 295295 A CH295295 A CH 295295A CH 295295D A CH295295D A CH 295295DA CH 295295 A CH295295 A CH 295295A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- stilbene
- amino
- disulfonic acid
- mol
- Prior art date
Links
Landscapes
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Plural Heterocyclic Compounds (AREA)
Description
Verfahren zur Herstellung eines Derivates der 4,4'-Diamino-stilben-disulfonsäure-(2,2'). Es wurde gefunden, dass man zu einem neuen Derivat der 4,4'-Diamino-stilben-disul- fonsäure-(2,2') gelangt, wenn man 1 Mol des Kondensationsproduktes aus 1 Mol des Dina- triumsalzes der 4 - [ (p - Methoxy - benzoy 1)
- amino] - 4' - [2,4 - diehlor -1,3,5 - triazyl - (6)- a.mino]-stilben-disulfonsäure-(2,2') und 1 Mol Phenol mit 1 Mol Monoäthanolamin umsetzt.
Die Umsetzung kann z. B. in der Weise -vorgenommen werden, dass man 1 Mol des genannten Kondensationsproduktes, nämlich des Dinatriumsalzes der 4 - [ (p - Methoxy- benzoyl) -amino] -4'- [2-phenoxy-4-chlor-1,3,5- triazyl- (6) ,amino ] -stilben-disulfonsäure- (2,2'), bei etwa 70-75 C in neutral gehaltener,
wäss- riger Lösung mit 1 Mol des Monoäthanol- amins umsetzt.
Das so erhaltene Dinatriumsalz der For mel
EMI0001.0046
bildet ein hellgelbes Pulver, welches in Wasser löslich ist. Behandelt man Zellulose material mit einer wässrigen Lösung dessel ben, so fluoresziert .dasselbe im ultravioletten Licht bläulich.
<I>Beispiel:</I> Zu 14 Teilen Dinatriumsalz der 4-[ (p- Methoxy-benzoyl)-amino] -4'- [2,4-dichlor-1,3,5- triazyl- (6) -amino ] -stilben-disulfonsäure- (2,2') in Wasser gibt man bei 10 C 1,88 Teile Phenol, steigert die Temperatur auf 40 C und rührt 2 Stunden bei dieser Temperatur, wobei man gleichzeitig 20 Teile normale Na tronlauge derart zutropft, dass .die Reak.- tionsmasse neutral bis schwach alkalisch rea giert.
Anschliessend gibt man 1,2 Teile Mono- äthanolamin hinzu, steigert die Reaktions temperatur innerhalb 1 Stunde auf 70 C und rührt 6 Stunden bei 70-75 C, wobei die entstehende Salzsäure durch Zugabe einer Lösung von 1,1 Teilen Natriumcarbonat in 11 Teilen Wasser fortlaufend neutralisiert wird. Hierauf lässt man erkalten, scheidet das entstandene Kondensationsprodukt durch Zu gabe von Natriumchlorid ab, filtriert, wäscht mit Natriumchloridlösung und trocknet.
Das erhaltene neue Dinatriumsalz stellt ein hellgelbes, wasserlösliches Pulver dar.
Process for the preparation of a derivative of 4,4'-diamino-stilbene-disulfonic acid- (2,2 '). It has been found that a new derivative of 4,4'-diamino-stilbene-disulphonic acid- (2,2 ') is obtained if 1 mol of the condensation product from 1 mol of the dinatrium salt of 4 - [( p - methoxy - benzoy 1)
- amino] - 4 '- [2,4 - diehlor -1,3,5 - triazyl - (6) - a.mino] -stilbene-disulfonic acid- (2,2') and 1 mol of phenol is reacted with 1 mol of monoethanolamine .
The implementation can e.g. B. in such a way that one mole of the condensation product mentioned, namely the disodium salt of 4 - [(p - methoxy-benzoyl) -amino] -4'- [2-phenoxy-4-chloro-1,3 , 5- triazyl- (6), amino] -stilbene-disulfonic acid- (2,2 '), at about 70-75 C in neutral,
Reacts aqueous solution with 1 mol of the monoethanolamine.
The disodium salt of the formula obtained in this way
EMI0001.0046
forms a light yellow powder which is soluble in water. If cellulose material is treated with an aqueous solution of the same, it fluoresces bluish in ultraviolet light.
<I> Example: </I> To 14 parts of the disodium salt of 4- [(p-methoxy-benzoyl) -amino] -4'- [2,4-dichloro-1,3,5-triazyl- (6) - amino] -stilbene-disulfonic acid- (2.2 ') in water is added at 10 ° C. 1.88 parts of phenol, the temperature is increased to 40 ° C. and stirred for 2 hours at this temperature, 20 parts of normal sodium hydroxide solution being added dropwise at the same time that .the reaction mass reacts neutrally to slightly alkaline.
Subsequently, 1.2 parts of monoethanolamine are added, the reaction temperature is increased to 70 ° C. over the course of 1 hour and the mixture is stirred at 70-75 ° C. for 6 hours, the hydrochloric acid formed by adding a solution of 1.1 parts of sodium carbonate in 11 parts of water is continuously neutralized. It is then allowed to cool, the condensation product formed is separated off by adding sodium chloride, filtered, washed with sodium chloride solution and dried.
The new disodium salt obtained is a light yellow, water-soluble powder.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH291791T | 1949-10-28 | ||
| CH295295T | 1949-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH295295A true CH295295A (en) | 1953-12-15 |
Family
ID=25733138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH295295D CH295295A (en) | 1949-10-28 | 1949-10-28 | Process for the preparation of a derivative of 4,4'-diamino-stilbene-disulfonic acid- (2,2 '). |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH295295A (en) |
-
1949
- 1949-10-28 CH CH295295D patent/CH295295A/en unknown
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