CH293602A - 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
- CH293602A CH293602A CH293602DA CH293602A CH 293602 A CH293602 A CH 293602A CH 293602D A CH293602D A CH 293602DA CH 293602 A CH293602 A CH 293602A
- Authority
- CH
- Switzerland
- Prior art keywords
- stilbene
- amino
- disulfonic acid
- diamino
- preparation
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Derivates der 4,4'-Diamino-stilben-disulfonsäure-(2,2'). T:s wurde gefunden, dass man zu einem neuen Derivat der 4,4'-Diamino-stilben-disul- fonsäure-(2,2') gelangt, wenn man 1 Mol des Dinatriumsalzes der 4-Amino-4'-[2-methyl amino-4-(f3-oxyäthyl-amino)-1,3,5-t.riazyl-(6)- aminol-stilben-disulfonsä.1ire-(2,2'),
hergestellt durch Kondensation von 1 Mol Cvanurehlorid mit 1 Mol des Dinatriumsalzes der 4-Nitro-4'- amino-stilben-disulfonsäure-(2,2'), 1. Mol Ätha- nolamin und 1 Mol Monomethylamin und an- schliessende Reduktion des Nitrokörpers zum Amin, mit 1 1Tol Phenylisoevanat umsetzt.
Die Umsetzung kann zum Beispiel in der Weise erfolgen, dass man 1 Mol des genann ten Dinatriumsalzes in wässeriger Lösung bei 60 mit dem Phenylisocyanat zur Reaktion bringt.
Das so erhaltene neue Dinatriumsalz der Formel
EMI0001.0027
21) bildet ein helles Pulver, das, in wässeriger Lösung auf Cellulosematerial aufgebracht, im ultravioletten Licht. bläulieh aufleuehtet. <I>Beispiel:
</I> Zu einer 50 C warmen, neutralen Lösung von .5,4 Teilen des Dinatriumsalzes der 4-Amino-4'- [2-methylamino-4-(fl-oxy-äthyl- a.mino) -1,3,5-triazyl - (6) -amino ] - stilben - disul- fonsäure-(2,2'), hergestellt durch Kondensa tion von 1 Mol Cvanurchlorid mit 1 Mol des Dinatriumsalzes des 4-Nitro-4'-amizio-stilben- disulfonsäure-(2,2'),
1 14lol äthanolamin und 1 llol Monomethy lamin und anschliessende Reduktion des Nitrokörpers zum Amin, in 50 Teilen Wasser werden unter gutem Rühren 2 Teile, in 5 Teilen Aceton gelöstes, Phenyl-iso- cyanat innerhalb von etwa. 10 Minuten zuge- tropft. Hierauf steigert man die Temperatur auf 60 C und hält. kurze Zeit. bei dieser Tem peratur.
Nach dem Abkühlen hat sich das ent standene Kondensationsprodukt teilweise ab geschieden; der Rest wird mit Natriumehlorid gefällt. 1 < 1an filtriert, wäscht mit Natriumehlo- ridlösung und trocknet. Das neue Produkt stellt. ein helles Pulver dar, das in Wasser löslich ist.
Process for the preparation of a derivative of 4,4'-diamino-stilbene-disulfonic acid- (2,2 '). It was found that a new derivative of 4,4'-diamino-stilbene-disulphonic acid- (2,2 ') is obtained if 1 mol of the disodium salt of 4-amino-4' - [2 -methyl amino-4- (f3-oxyethyl-amino) -1,3,5-t.riazyl- (6) -aminol-stilbene-disulfonic acid 1ire- (2,2 '),
produced by condensation of 1 mole of Cvanurehlorid with 1 mole of the disodium salt of 4-nitro-4'-amino-stilbene-disulfonic acid- (2.2 '), 1 mole of ethanolamine and 1 mole of monomethylamine and subsequent reduction of the nitro body to the amine, with 1 1Tol phenyl isoevanate.
The reaction can be carried out, for example, in such a way that 1 mole of the disodium salt mentioned is reacted at 60 in aqueous solution with the phenyl isocyanate.
The thus obtained new disodium salt of the formula
EMI0001.0027
21) forms a light-colored powder that, when applied to cellulose material in aqueous solution, is exposed to ultraviolet light. lights up bluish. <I> example:
</I> To a 50 C warm, neutral solution of .5.4 parts of the disodium salt of 4-amino-4'- [2-methylamino-4- (fl-oxy-ethyl-a.mino) -1,3 , 5-triazyl - (6) -amino] - stilbene - disulphonic acid- (2,2 '), prepared by condensation of 1 mol of vanuric chloride with 1 mol of the disodium salt of 4-nitro-4'-amizio-stilbene disulfonic acid- (2.2 '),
1 14lol ethanolamine and 1 llol Monomethy lamin and subsequent reduction of the nitro body to the amine, in 50 parts of water with thorough stirring, 2 parts of phenyl isocyanate dissolved in 5 parts of acetone within about. Added dropwise for 10 minutes. The temperature is then increased to 60 ° C. and held. short time. at this temperature.
After cooling, the condensation product formed has partially separated off; the rest is precipitated with sodium chloride. 1 <1an filtered, washed with sodium chloride solution and dried. The new product represents. is a light-colored powder that is soluble in water.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH293602T | 1949-10-28 | ||
| CH287192T | 1949-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH293602A true CH293602A (en) | 1953-09-30 |
Family
ID=25732676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH293602D CH293602A (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) | CH293602A (en) |
-
1949
- 1949-10-28 CH CH293602D patent/CH293602A/en unknown
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