CH293615A - 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
- CH293615A CH293615A CH293615DA CH293615A CH 293615 A CH293615 A CH 293615A CH 293615D A CH293615D A CH 293615DA CH 293615 A CH293615 A CH 293615A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- amino
- stilbene
- disulfonic acid
- disodium salt
- 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-disulfonsäure- (2,2') gelangt, wenn man erfindungsgemäss auf 1 Mol des Dinatriumsalzes der 4-Amino-4'- [2,4- (bis- f-oxyäthyl )-amino -1,3,5 -triazyl- (6) - amino]-stilben-disulfonsäure-(2,2'),
hergestellt durch Kondensation von 1 Mol Cyanurchlorid mit 1 Mol des Dinatriumsalzes der 4-Nitro-4'- aminostilben-disulfonsäure-(2,2') und 2 Mol Diäthanolamin und anschliessende Reduktion des Nitrokörpers zum Amin, 1. Mol Diphenyl- 4-carbonsä.ureehlorid einwirken lässt.
Die Umsetzung kann zum Beispiel in wäs seriger Aeetonlösung bei 10 bis 12 unter Auf rechterhaltung einer schwach alkalischen Re aktion vorgenommen werden.
Das so erhaltene neue Dinatriumsalz der 4- [ (4-Pheny 1- benzoy l) - amino ] - 4', - [ 2,4- (bis-f- oxyäthyl) - amino-1, 3, 5-triazyl- (6) - amino ] - stil- ben-disulfonsäure-(2,2') der Formel
EMI0001.0038
bildet ein helles, in Wasser lösliches Pulver, das als optisches Aufhellmittel für Cellulose- material verwendet werden kann.
<I>Beispiel:</I> Zu einer mit Natriumcarbonat neutrali sierten Lösung von 6,5 Teilen 4-Amino-4'-[2,4- (bis-ss-oxyäthyl )-amino-1.,3,5-triazy 1-(6)-amino ] - stilben-disulfonsäure-(2,2'), hergestellt durch Kondensation von 1.
Mol Cyanurchlorid mit 1 Mol des Dinatriumsalzes der 4-Nitro-4'- aminostilben-disulfonsäure-(2,2') und 2 Mol Diäthanolamin und anschliessende Reduktion des Nitrokörpers zum Amin, in 60 Teilen 50 1/o igem Aceton lässt man bei 10 bis 15 eine Lösung von 3,2 Teilen Diphenyl-4-carbon- säurechlorid in 15 Teilen Aceton innerhalb von 10 Minuten und unter Aufrechterhaltung einer schwach alkalischen Reaktion zufliessen.
Sobald das Ausgangsmaterial. verschwun den ist, fügt man wässerige Natriumchlorid- lösung hinzu, filtriert das abgeschiedene Kon densationsprodukt, wäscht mit Natriumchlo- ridlösung nach und trocknet.
Man erhält so das neue Dinatriumsalz der 4-[ (4-Phenyl-benzoyl)-amino]-4' -[2,4-(bis-fl- oxyäthyl) - amino-1,3,5-triazyl- (6) - amino ] - stil- ben-disulfonsäure-(2,2') als helles, wasserlös liches Pulver.
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-disulfonic acid- (2,2 ') is obtained if, according to the invention, 1 mol of the disodium salt of 4-amino-4'- [2,4 - (bis-f-oxyäthyl) -amino -1,3,5-triazyl- (6) -amino] -stilbene-disulfonic acid- (2,2 '),
produced by condensation of 1 mole of cyanuric chloride with 1 mole of the disodium salt of 4-nitro-4'-aminostilbene-disulfonic acid (2.2 ') and 2 moles of diethanolamine and subsequent reduction of the nitro body to the amine, 1st mole of diphenyl-4-carboxylic acid .ureehlorid can act.
The reaction can be carried out, for example, in aqueous acetone solution at 10 to 12 while maintaining a weakly alkaline reaction.
The new disodium salt of 4- [(4-pheny 1-benzoy l) - amino] - 4 ', - [2,4- (bis-f-oxyethyl) - amino-1, 3, 5-triazyl- ( 6) - amino] - stilbene disulphonic acid (2,2 ') of the formula
EMI0001.0038
forms a light, water-soluble powder that can be used as an optical brightener for cellulose material.
<I> Example: </I> To a solution of 6.5 parts of 4-amino-4 '- [2,4- (bis-ss-oxyethyl) -amino-1., 3,5- triazy 1- (6) -amino] - stilbene-disulfonic acid- (2,2 '), produced by condensation of 1.
Mol of cyanuric chloride with 1 mol of the disodium salt of 4-nitro-4'-aminostilbene-disulphonic acid (2.2 ') and 2 mol of diethanolamine and subsequent reduction of the nitro body to the amine, in 60 parts of 50% acetone is left at 10 to 15 a solution of 3.2 parts of diphenyl-4-carboxylic acid chloride in 15 parts of acetone within 10 minutes and while maintaining a weakly alkaline reaction.
Once the starting material. has disappeared, aqueous sodium chloride solution is added, the deposited condensation product is filtered off, washed with sodium chloride solution and dried.
The new disodium salt of 4- [(4-phenyl-benzoyl) -amino] -4 '- [2,4- (bis-oxyethyl) -amino-1,3,5-triazyl- (6) is obtained in this way. - amino] - stilbene disulphonic acid (2,2 ') as a pale, water-soluble powder.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH287192T | 1949-10-28 | ||
CH293615T | 1949-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH293615A true CH293615A (en) | 1953-09-30 |
Family
ID=25732689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH293615D CH293615A (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) | CH293615A (en) |
-
1949
- 1949-10-28 CH CH293615D patent/CH293615A/en unknown
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