CH293613A - 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
- CH293613A CH293613A CH293613DA CH293613A CH 293613 A CH293613 A CH 293613A CH 293613D A CH293613D A CH 293613DA CH 293613 A CH293613 A CH 293613A
- Authority
- CH
- Switzerland
- Prior art keywords
- amino
- disulfonic acid
- stilbene
- mol
- disodium salt
- Prior art date
Links
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Paper (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Derivates der 4,4'-Diamino-stilhen-disulfonsäure-(2,2'). Es wurde gefunden, da.ss man zu einem neuen Derivat der 4,4'-Dia.mino-stilben-disul- fonsäure-(2,2') gelangt, wenn man erfindungs gemäss auf 1.
Mol des Dinatriumsalzes der 4-Amino-4'- [2,4- (bis-ss - oxyäthyl) -amino -1,3,5- triazyl- (6) -amino ] - stilben-disulfonsäure-(2, 2'), hergestellt durch Kondensation von 1 Mol Cyanurehlorid mit 1 Mol des Dinatriumsalzes der 4-Nitro-4'-aminostilben-disulfonsäure- (2,2')
und 2 11o1 Diäthanolamin und anschlie ssende Reduktion des Nitrokörpers zum Amin,
EMI0001.0024
bildet ein helles, in Wasser lösliches Pulver, das als optisches Aufhellmittel für Cellulose- material verwendet werden kann.
<I>Beispiel:</I> Zu einer mitatriumcarbonat neutrali sierten Lösung von 6,5 Teilen 4-Amino-4'-[2,4- (bis-ss-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 1 Mol 2-Methoxy-3-naphthoylchlorid einwir ken lässt.
Die Umsetzung kann zum Beispiel in wäs seriger Acetonlösung bei 10 bis 12 unter Auf rechterhaltung einer schwach alkalischen Re aktion vorgenommen werden.
Das so erhaltene neue Dinatriumsalz der 4-[ (2 - Methoxy- 3 -naphthoyl )-amino] -4'- [2,4- (bis-ss-oxyäth,#-1)-amino-1,3,5-triazyl-(6)-amino] - stilben-disulfonsäure-(2,2') der Formel Diäthanolamin und anschliessende Reduktion des Nitrokörpers zum Amin,
in 60 Teilen 50 % igem Aceton lässt man bei 10 bis 15 eine Lösung von 3,3 Teilen 2-hlethoxy-3-naphthoyl- ehlorid 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 Nat.riumchlorid- lösung hinzu, filtriert das abgeschiedene Kon densationsprodukt, wäseht mit Natriumchlo- ridlösung nach und trocknet. Man erhält so das neue Dinatriumsalz der 4-[ (2-Methoxy-3-naphthoyl)-amino]-4'-[2,4- (bis-ss-oxyäthy 1)-amino-1, 3,5-triazyl-(6)-amino] - stilben-disulfonsäure-(2,2') als helles, wasser lösliches Pulver.
Process for the preparation of a derivative of 4,4'-diamino-stilhen-disulfonic acid- (2,2 '). It has been found that a new derivative of 4,4'-dia.mino-stilbene-disulphonic acid- (2,2 ') is obtained if, according to the invention, 1.
Mol of the disodium salt of 4-amino-4'- [2,4- (bis-ss-oxyethyl) -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 11o1 diethanolamine and subsequent reduction of the nitro body to the amine,
EMI0001.0024
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-triazyl- neutralized with sodium carbonate (6) -amino] - stilbene-disulfonic acid- (2,2 '), prepared by condensation of 1 mol of cyanuric chloride with 1 mol of the disodium salt of 4-nitro-4'-aminostilbene-disulfonic acid- (2,2') and 2 Mol 1 mole of 2-methoxy-3-naphthoyl chloride 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- [(2 - methoxy-3-naphthoyl) -amino] -4'- [2,4- (bis-ss-oxyäth, # - 1) -amino-1,3,5- triazyl- (6) -amino] - stilbene-disulfonic acid- (2,2 ') of the formula diethanolamine and subsequent reduction of the nitro body to the amine,
in 60 parts of 50% strength acetone, a solution of 3.3 parts of 2-methoxy-3-naphthoyl chloride in 15 parts of acetone is allowed to flow in at 10 to 15 minutes, while maintaining a weakly alkaline reaction.
As soon as the starting material has disappeared, aqueous sodium chloride solution is added, the condensation product which has separated out is filtered off, washed with sodium chloride solution and dried. This gives the new disodium salt of 4- [(2-methoxy-3-naphthoyl) -amino] -4 '- [2,4- (bis-ss-oxyäthy 1) -amino-1,3,5-triazyl- (6) -amino] - stilbene-disulfonic acid- (2,2 ') as a pale, water-soluble powder.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH293613T | 1949-10-28 | ||
CH287192T | 1949-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH293613A true CH293613A (en) | 1953-09-30 |
Family
ID=25732687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH293613D CH293613A (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) | CH293613A (en) |
-
1949
- 1949-10-28 CH CH293613D patent/CH293613A/en unknown
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