CH324388A - Process for the preparation of new derivatives of 4,4'-diaminostilbene-disulfonic acid- (2,2 ') - Google Patents

Process for the preparation of new derivatives of 4,4'-diaminostilbene-disulfonic acid- (2,2 ')

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Publication number
CH324388A
CH324388A CH324388DA CH324388A CH 324388 A CH324388 A CH 324388A CH 324388D A CH324388D A CH 324388DA CH 324388 A CH324388 A CH 324388A
Authority
CH
Switzerland
Prior art keywords
diaminostilbene
preparation
disulfonic acid
new derivatives
parts
Prior art date
Application number
Other languages
German (de)
Inventor
Adolf-Emil Dr Siegrist
Original Assignee
Ciba Geigy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ciba Geigy filed Critical Ciba Geigy
Publication of CH324388A publication Critical patent/CH324388A/en

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Description

  

  Verfahren zur     Herstellung    neuer Derivate der     4,4'-Diaminostilben-disulfonsäure-(2,2')       Es wurde gefunden, dass man zu neuen,  wertvollen Derivaten der     4,4'-Diaminostilben-           < iisulfonsäiire-(2,2')    gelangt, wenn man.

   1     Mol            Cyanurchlorid    einerseits mit 1     Mol    einer Ver  bindung der Formel  
EMI0001.0008     
    worin v,     w    und x substituierte oder     unsubsti-          tuierte        Aminogruppen    bedeuten, und ander  seits mit 1 Hol einer     Verbindung    mit reak  tionsfähigem basischem     Stiekstoffatom    kon  densiert.    Die neuen Verbindungen können zum Auf  hellen von     Cellulosematerialien    verwendet  werden.  



       Beispiel     Man stellt das Kondensationsprodukt der  Formel  
EMI0001.0017     
         ber,    indem man 1     1'1o1        Cyanurehlorid    mit  7     llol        4-Aniino    - 4'- [ 2 -     (ss-oayätliyl        aniino)    -     4-          anilino-1,3,5-triazyl-(6)-amino]        -stilben.-disul-          fonsäure-(2,2'),    1     Mol        4'-Nitro-4-a.minostilben-          clisulfonsäure-(2,2')

      und 1     Mol        3l:onoäthanol-          amin    kondensiert und das erhaltene     Konden-          sationsprodukt    nach     Bechamps    reduziert.

      Eine Lösung von 18,5 Teilen     Cyanur-          chlorid    in 100 Teilen Aceton wird in eine  Mischung     aus    100 Teilen Eis und 100 Teilen  Nasser eingerührt und zu der so erhaltenen  Suspension bei 0 bis     5     innerhalb von 10 bis  20 Minuten eine mit     Natriumearbonat    neutral  gestellte Lösung von 119,3 Teilen des oben      dargestellten Kondensationsproduktes in 1000  Teilen Wasser unter Rühren     zubetropft.    Hier  auf lässt man zu dem erhaltenen     Reakt.ions-          -emisch    innerhalb von einer Stunde eine Lö  sung von 5,

  5 Teilen     Natriumcarbonat    in  50 Teilen Wasser in der Weise     zutropfen,     dass das Gemisch immer neutral bis schwach  sauer reagiert. Zu der nun keine freien       Aminogruppen    mehr enthaltenden Suspension  werden 6,1 Teile     hl:onoäthanolamin    zugesetzt.  Anschliessend steigert man die Temperatur  innerhalb einer Stunde auf 35  und rührt  3 Stunden bei 30 bis 35 , wobei man während  der ganzen Zeit die entstandene Salzsäure    durch allmähliches     Zutropfen    von 100 Teilen       n-Natriumhy        droxydlösung    neutralisiert.  



  Das gebildete Kondensationsprodukt wird  durch Zugeben von     Natriumehlorid    abgeschie  den, filtriert, mit     Natriumchloridlösung    ge  waschen und getrocknet.



  Process for the preparation of new derivatives of 4,4'-diaminostilbene-disulfonic acid (2,2 ') It has been found that new, valuable derivatives of 4,4'-diaminostilbene-disulfonic acid (2,2') are obtained , if.

   1 mole of cyanuric chloride on the one hand with 1 mole of a compound of the formula
EMI0001.0008
    where v, w and x denote substituted or unsubstituted amino groups, and condensed on the other hand with 1 hol of a compound with a reactive basic nitrogen atom. The new compounds can be used for lightening cellulosic materials.



       Example The condensation product of the formula is prepared
EMI0001.0017
         by adding 1 1'1o1 cyanuric chloride with 7 llol of 4-aniino-4'- [2 - (ss-oayätliyl aniino) -4-anilino-1,3,5-triazyl- (6) -amino] -stilbene. -disulphonic acid- (2.2 '), 1 mol of 4'-nitro-4-a.minostilben- clisulphonic acid- (2.2')

      and 1 mol 3l: condensed onoethanolamine and reduced the condensation product obtained according to Bechamps.

      A solution of 18.5 parts of cyanuric chloride in 100 parts of acetone is stirred into a mixture of 100 parts of ice and 100 parts of water and a solution of sodium carbonate neutralized with sodium carbonate is added to the suspension thus obtained at 0 to 5 within 10 to 20 minutes 119.3 parts of the condensation product shown above in 1000 parts of water were added dropwise with stirring. Here you can add a solution of 5 to the reaction mixture obtained within one hour,

  5 parts of sodium carbonate in 50 parts of water are added dropwise in such a way that the mixture always reacts neutrally to slightly acidic. 6.1 parts of hl: onoethanolamine are added to the suspension, which no longer contains any free amino groups. The temperature is then increased to 35 within an hour and the mixture is stirred for 3 hours at 30 to 35, during which the hydrochloric acid formed is neutralized by the gradual dropwise addition of 100 parts of n-sodium hydroxide solution.



  The condensation product formed is deposited by adding sodium chloride, filtered, washed with sodium chloride solution and dried.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von neuen Derivaten der 4,4'-Diaminostilben-disulfon- säure-(2,2'), dadurch gekennzeichnet, da.ss man 1 142o1 Cyanurchlorid einerseits mit 1 1VIol einer Verbindung der Formel EMI0002.0019 worin v, w und x substituierte oder unsubsti- tuierte Aminogruppen bedeuten, und ander seits mit 1 Mol einer Verbindung mit reak- tionsfähigem basischem Stickstoffatom kon densiert. PATENT CLAIM Process for the preparation of new derivatives of 4,4'-diaminostilbene-disulfonic acid- (2,2 '), characterized in that 1 142o1 cyanuric chloride is mixed with 1 1VIol of a compound of the formula EMI0002.0019 in which v, w and x denote substituted or unsubstituted amino groups, and condensed on the other hand with 1 mol of a compound having a reactive basic nitrogen atom.
CH324388D 1951-09-13 1951-09-13 Process for the preparation of new derivatives of 4,4'-diaminostilbene-disulfonic acid- (2,2 ') CH324388A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH318190T 1951-09-13
CH324388T 1951-09-13

Publications (1)

Publication Number Publication Date
CH324388A true CH324388A (en) 1957-09-15

Family

ID=25736179

Family Applications (1)

Application Number Title Priority Date Filing Date
CH324388D CH324388A (en) 1951-09-13 1951-09-13 Process for the preparation of new derivatives of 4,4'-diaminostilbene-disulfonic acid- (2,2 ')

Country Status (1)

Country Link
CH (1) CH324388A (en)

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