CH283978A - 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
- CH283978A CH283978A CH283978DA CH283978A CH 283978 A CH283978 A CH 283978A CH 283978D A CH283978D A CH 283978DA CH 283978 A CH283978 A CH 283978A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- stilbene
- disulfonic acid
- diamino
- derivative
- Prior art date
Links
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 erfindungs gemäss 1 Mol des Dinatriumsalzes der 4-[2,4 a dielilor-1.,3,5-tr-ia7y]-(6)-aminoj-4'-[2,4-di-(o- anisidii)o)-1,3,5-tria7vl -(6)-amiiioj-stilben-di- sulfonsäure-(2,2') mit 1 2tlol Diäthanolamin umsetzt.
Die Umsetzung kann zum Beispiel in der Weise vorgenommen werden, dass man 1 Mol des genannten Dinatriumsalzes in neutraler Lösung bei 35 C mit. Diäthanolamin umsetzt. Das so erhaltene neue Natriumsalz der Formel
EMI0001.0016
ist ein hellgelbes, wasserlösliches Pulver. Es kann zum optisebelr Bleielleli von T'a.Seril Ver wendet werden.
<I>Beispiel,:</I> Zu einer feinen, durch Eingiessen einer Lösung von 3,8 Teilen Cy anurchlorid in Ace ton in Eiswasser erhaltenen Suspension, lässt man bei 0 bis 5 C innerhalb 1.5 Minuten eine mit Natriumcarbonat. neutralisierte Lösung von 13,8 Teilen 4-Airiino-4'-[2,4-di-(o-anisi- dino) -1, 3, 5-ti-iazyl- (6) -amino ] -stilben-disulf on- säure-(2,2') in Wasser zufliessen.
Hierauf wird innerhalb 15 Minuten eine Lösung von 1,1 Teilen Natriumearbonat in 10 Teilen Wasser derart zugefügt, dass das Reaktionsgemisch stets neutral oder sehwaeli sauer reagiert. Zum. neutralen und kein Ausgangsmaterial mehr enthaltenden Reaktionsgemisch fügt mau 5 Teile Diäthanolainin, .steigert die Tempera tur auf 35 C und rührt 4 Stunden bei dieser Temperatur. NTach dem Abkühlen wird das Kondensationsprodukt durch Zugeben von Natriumehlorid abgeschieden, filtriert, mit.
Natriumchloridlösung -,gewaschen rund ge- ti@oeknet. Das so erhaltene Dinatriumsalz der 4- [2-(bis-f oxyäthyl-amino)-4-chlor-1,3,5-tri- a zy 1- (6) - amino j - 4'- [2,4-di- (o-anisi(lino) -1, 3, 5 triazyl- (6) -amino j -stilb en-disulfonsäure- (2,2') ist ein hellgelbes Pulver,
dessen wässerige Lö sungen auf ein Substrat aufgebracht, dieses in ultraviolettem Lieht. blä.ulieh aufleuchten la:sseii.
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 one mole of the disodium salt of 4- [2,4 a dielilor- 1., 3,5-tr-ia7y] - (6) -aminoj-4 '- [2,4-di- (o- anisidii) o) -1,3,5-tria7vl - (6) -amiiioj- stilbene disulphonic acid (2.2 ') with 1 2tlol diethanolamine.
The reaction can be carried out, for example, in such a way that 1 mol of the disodium salt mentioned is added in neutral solution at 35.degree. Diethanolamine converts. The new sodium salt of the formula thus obtained
EMI0001.0016
is a light yellow, water-soluble powder. It can be used with the optisebelr lead bell from T'a.Seril.
<I> Example: </I> A fine suspension obtained by pouring a solution of 3.8 parts of cyanuric chloride in acetone in ice water is left with sodium carbonate at 0 to 5 C within 1.5 minutes. neutralized solution of 13.8 parts of 4-airiino-4 '- [2,4-di- (o-anisidino) -1, 3, 5-ti-iazyl- (6) -amino] -stilbene-disulf one - Acid (2.2 ') flow in water.
A solution of 1.1 parts of sodium carbonate in 10 parts of water is then added within 15 minutes in such a way that the reaction mixture always reacts neutrally or sehwaeli acidic. To the. neutral reaction mixture containing no more starting material adds 5 parts of diethanolainine, increases the temperature to 35 ° C. and stirs for 4 hours at this temperature. After cooling, the condensation product is separated out by adding sodium chloride, filtered off with.
Sodium chloride solution - washed around ti @ oeknet. The disodium salt of 4- [2- (bis-f oxyäthyl-amino) -4-chloro-1,3,5-tri- acy 1- (6) -amino j-4'- [2,4- di- (o-anisi (lino) -1, 3, 5 triazyl- (6) -amino j -stilbene-disulfonic acid- (2,2 ') is a light yellow powder,
whose aqueous solutions are applied to a substrate, this in ultraviolet light. blä.ulieh light up la: sseii.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH281107T | 1949-10-18 | ||
CH283978T | 1949-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH283978A true CH283978A (en) | 1952-06-30 |
Family
ID=25732053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH283978D CH283978A (en) | 1949-10-18 | 1949-10-18 | Process for the preparation of a derivative of 4,4'-diamino-stilbene-disulfonic acid- (2,2 '). |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH283978A (en) |
-
1949
- 1949-10-18 CH CH283978D patent/CH283978A/en unknown
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