CH293611A - 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
- CH293611A CH293611A CH293611DA CH293611A CH 293611 A CH293611 A CH 293611A CH 293611D A CH293611D A CH 293611DA CH 293611 A CH293611 A CH 293611A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- amino
- stilbene
- disulfonic acid
- diamino
- Prior art date
Links
Landscapes
- Detergent Compositions (AREA)
- Plural Heterocyclic Compounds (AREA)
Description
Verfahren zur Herstellung eines Derivates der 4,4'-Diamino-stilhen-disulfonsäure-(2,2'). Es wurde gefunden, dass man zu einem neuen Derivat der 4,4'-Diamino-stilben-disul- fonsänre-(2,2') gelangt, wenn man 7.
Mol des Dinatriumsalzes der 4-Amino-4'-[2,4-(ss-oxy- ätliyl) -amino-1,3,5-triazyl - (6 )- amino ] - stilben- disulfonsäure-(2,2'), hergestellt durch Kon densation von 1 Mol Cvanurchlorid mit 1 Mol des Dinatriumsalzes der 4-Nitro-4'-amino-stil- ben-(lisulfonsäiti-e-(2,2')
und 2 Mol Monoätha- nolainin und anschliessende Reduktion des Ni- trokörpers zum Amin, mit. 1 Mol 2,4-Di- methoxv-benzovlehlorid umsetzt.
Die Umsetzung kann zum Beispiel in wäs seriger Acetonlösung bei 10 bis 15 unter Auf rechterhaltung einer schwach alkalischen Re aktion vorgenommen werden.
Das auf diese Weise erhaltene neue Di- natriumsalz der 4-[ (2,4-Dimethoxy-benzoyl)- amino ] -4'- [2,4 - (ss - oxyäthyl) - amino -1,3,5 - tri- azyl- (6) -amino]-stilben-disulfonsäure-(2,2') der Formel
EMI0001.0038
bildet ein Hellgelbes Pulver, das in Wasser löslich ist. Es kann als optisches Bleichmittel verwendet werden.
Beispiel: Zu einer mit Natriumearbonat neutralisier ten Lösung von 5,7 Teilen 4-Amino-4'-[2,4-(ss- oxyätliyl) -amino -1,3,5-triazyl- (6) -amino] -stil- ben-disulfonsäure- (2,2'), hergestellt durch Kondensation von 1 Mol Cyanurehlorid mit 1 Mol des Dinatriumsalzes der 4-Nitro-4'- amino-stilben-disulfonsäure-(2,2')
und 2 Mol 1Ionoäthanolamin und anschliessende Reduk tion des Nitrokörpers zum Amin, in 60 Teilen 50 % igem Aceton lässt man bei 10 bis 15 innerhalb von 1.5 Minuten und unter Auf rechterhaltung einer sehwach alkalischen Re aktion eine Lösung von 2,9 Teilen 2,4-Di- methoxy-benzoylehlorid in 5 Teilen Aceton zu fliessen.
Sobald das Ausgangsmaterial ver schwunden ist, fügt man wässerige Natrium- ehloridlösung hinzu, filtriert das abgeschie dene Kondensationsprodukt, wäscht dasselbe mit Natriumehloridlösung und trocknet.. Das so erhaltene Dinatriumsalz der 4-[ (2,4-Di- methoxy-benzoyl) -amino ] -4' - [ 2,-I-(fl'-oxyäthyl)- a.mino-1, 3,5 - triazy 1- (6) -amino ] - stilben - disul- fonsäure-(2,2')
ist, ein hellgelbes, wasserlösli- ehes 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'-diamino-stilbene-disulphonsane- (2,2 ') is obtained if 7.
Mol of the disodium salt of 4-amino-4 '- [2,4- (ss-oxy- ätliyl) -amino-1,3,5-triazyl - (6) - amino] - stilbene disulfonic acid- (2,2' ), produced by condensation of 1 mol of Cvanurchlorid with 1 mol of the disodium salt of the 4-nitro-4'-amino-stilbene- (lisulfonsäiti-e- (2,2 ')
and 2 moles of monoethanolainine and subsequent reduction of the nitrous to the amine, with. Reacts 1 mol of 2,4-dimethoxv-benzovlehloride.
The reaction can be carried out, for example, in wäs seriger acetone solution at 10 to 15 while maintaining a weakly alkaline reaction.
The new disodium salt of 4- [(2,4-dimethoxy-benzoyl) -amino] -4'- [2,4 - (ss-oxyethyl) -amino -1,3,5-tri- azyl- (6) -amino] -stilbene-disulfonic acid- (2,2 ') of the formula
EMI0001.0038
forms a light yellow powder that is soluble in water. It can be used as an optical bleach.
Example: To a solution of 5.7 parts of 4-amino-4 '- [2,4- (ss- oxyätliyl) -amino -1,3,5-triazyl- (6) -amino] -stil neutralized with sodium carbonate - ben-disulfonic acid- (2.2 '), prepared by condensation of 1 mole of cyanuric chloride with 1 mole of the disodium salt of 4-nitro-4'-amino-stilbene-disulfonic acid- (2.2')
and 2 moles of 1Ionoäthanolamin and subsequent reduction of the nitro body to the amine, in 60 parts of 50% acetone is left at 10 to 15 within 1.5 minutes and while maintaining a weakly alkaline reaction, a solution of 2.9 parts of 2.4 To flow dimethoxy-benzoylechloride in 5 parts of acetone.
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. The disodium salt of 4- [(2,4-dimethoxy-benzoyl) -amino thus obtained ] -4 '- [2, -I- (fl'-oxyethyl) - a.mino-1, 3,5 - triazy 1- (6) -amino] - stilbene - disulphonic acid- (2,2')
is, a light yellow, water-soluble powder.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH293611T | 1949-10-28 | ||
CH287192T | 1949-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH293611A true CH293611A (en) | 1953-09-30 |
Family
ID=25732685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH293611D CH293611A (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) | CH293611A (en) |
-
1949
- 1949-10-28 CH CH293611D patent/CH293611A/en unknown
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