CH295297A - 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 ').

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Publication number
CH295297A
CH295297A CH295297DA CH295297A CH 295297 A CH295297 A CH 295297A CH 295297D A CH295297D A CH 295297DA CH 295297 A CH295297 A CH 295297A
Authority
CH
Switzerland
Prior art keywords
sep
amino
stilbene
disulfonic acid
diamino
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
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 CH295297A publication Critical patent/CH295297A/en

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  • Plural Heterocyclic Compounds (AREA)
  • Indole Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Verfahren        zur    Herstellung eines Derivates der     4,4'-Dianiino-stilben-disulfonsäure-(2,2       Es wurde gefunden, dass man zu einem  neuen Derivat der     4,4'-Diamino-stilben-disul-          fonsäure-(2,2')    gelangt, wenn man erfin  dungsgemäss 1     Mol    des     Dinatriumsalzes    der  4-[     (p-Methoxy-benzoyl)        -amino]    -4'- [2,4- di  ehlor-1,3,5-triazyl-(6)-amino]-stilben-disulfoii-         säure-(2,2')

      mit 1     Mol        N-Methyl-taurin-na-          trium        umsetzt.     



  Die Umsetzung kann z. B. in wässriger Lö  sung bei etwa 25      vorgenommen        werden.     Das auf diese     Weise    erhaltene neue Na  triumsalz der Formel  
EMI0001.0018     
    bildet ein helles, in Wasser lösliches Pulver,       das        als    optisches Bleichmittel verwendet wer  den kann.  



       Beispiel:     5,5 Teile des     Dinatriumsalzes    der 4-[     (p-          Methoxy-benzoyl)-amino]        -4'-amino-stilberi-di-          sulfonsäure-(2,2')    [das durch Kondensation  von     4-Amino-4'-nitro        -stilben    -     disiilfonsäure-          (2,2')    mit     p-Methoxy-benzoylchlorid    und an  schliessende Reduktion erhalten werden     kann]     werden in 100 Teilen     Wasser    gelöst und bei  0-5  zu einer feinen,

   durch Eintragen von  2 Teilen in 10 Teilen Aceton gelöstem     Cya-          nurchlorid    in     ein    aus 20 Teilen Eis     und    20  Teilen     Wasser    bestehendes Gemisch erhalte-    neu Suspension     zugetropft,    wobei die Reak  tionsmasse durch     allmähliches    Zugeben von  0,5 Teilen in 5 Teilen Wasser gelöstem     Na-          triiuncarbonat    schwach sauer     bis    neutral gehal  ten wird.

   Sobald das Ausgangsmaterial ver  schwunden ist, werden 5 Teile     N-Methyl-          ta.urin-natrium,    die in 25 Teilen Wasser ge  löst sind, zugefügt, die Temperatur innerhalb  von 30     Minuten    auf 25  gesteigert und 5  Stunden unter     Aufrechterhaltung        einer    neu  tralen Reaktion bei dieser Temperatur gehal  ten. Das     entstandene        Kondensationsprodukt     wird mit     Natriumchlorid    abgeschieden, fil  triert, mit     Natrüunchloridlösung    gewaschen  und dann getrocknet.

      
EMI0002.0001     
  
    Das <SEP> so <SEP> erhaltene <SEP> neue <SEP> Natriumsalz <SEP> der
<tb>  4- <SEP> [ <SEP> (p <SEP> -Methoxybenzoyl) <SEP> -amino] <SEP> -4'- <SEP> [4-chlor-2  methy1- <SEP> (ss-sulfo-äthyl) <SEP> -amino-1, <SEP> 3,5-triazyl- <SEP> (6) <SEP>   amino]-stilben-disulfonsäure-(2,2') <SEP> stellt <SEP> ein
<tb>  helles <SEP> Pulver <SEP> dar, <SEP> das <SEP> in <SEP> Wasser <SEP> löslich <SEP> ist.



      Process for the preparation of a derivative of 4,4'-dianiino-stilbene-disulphonic acid- (2,2 'It was found that a new derivative of 4,4'-diamino-stilbene-disulphonic acid- (2,2' ) if one mole of the disodium salt of 4- [(p-methoxy-benzoyl) -amino] -4'- [2,4-di-chloro-1,3,5-triazyl- (6) -amino according to the invention ] -stilbene-disulfoii- acid- (2.2 ')

      with 1 mole of N-methyl-taurine-sodium.



  The implementation can e.g. B. be made in aqueous solution at about 25. The new sodium salt of the formula obtained in this way
EMI0001.0018
    forms a light-colored, water-soluble powder that can be used as an optical bleaching agent.



       Example: 5.5 parts of the disodium salt of 4- [(p-methoxy-benzoyl) -amino] -4'-amino-stilberi-disulfonic acid- (2,2 ') [produced by condensation of 4-amino-4 '-nitro -stilbene - disilfonsäure- (2.2') with p-methoxy-benzoyl chloride and subsequent reduction can be obtained] are dissolved in 100 parts of water and at 0-5 to a fine,

   by introducing 2 parts of cyanuric chloride dissolved in 10 parts of acetone in a mixture consisting of 20 parts of ice and 20 parts of water, a new suspension was added dropwise, the reaction mass being formed by gradually adding 0.5 parts of sodium dissolved in 5 parts of water. tri-carbonate is kept slightly acidic to neutral.

   As soon as the starting material has disappeared, 5 parts of N-methyl ta.urine sodium, which are dissolved in 25 parts of water, are added, the temperature increased to 25 within 30 minutes and 5 hours while maintaining a neutral reaction this temperature held th. The resulting condensation product is precipitated with sodium chloride, filtered, washed with sodium chloride solution and then dried.

      
EMI0002.0001
  
    The <SEP> so <SEP> received <SEP> new <SEP> sodium salt <SEP> der
<tb> 4- <SEP> [<SEP> (p <SEP> -Methoxybenzoyl) <SEP> -amino] <SEP> -4'- <SEP> [4-chloro-2 methy1- <SEP> (ss- sulfo-ethyl) <SEP> -amino-1, <SEP> 3,5-triazyl- <SEP> (6) <SEP> amino] -stilbene-disulfonic acid- (2,2 ') <SEP> represents <SEP> one
<tb> light <SEP> powder <SEP>, <SEP> that <SEP> is <SEP> soluble in <SEP> water <SEP>.

 

Claims (1)

EMI0002.0002 PATENTANSPRUCH: <tb> Verfahren <SEP> zur <SEP> Herstellung <SEP> eines <SEP> neuen <tb> Derivates <SEP> der <SEP> 4,4'-Diamino-stilben-disulfon säure-(2,2'), <SEP> dadurch <SEP> gekennzeichnet, <SEP> dass <tb> man <SEP> 1 <SEP> Mol <SEP> des <SEP> Dinatriumsalzes <SEP> der <SEP> 4-[(p Methoxy-benzoyl) <SEP> -amino] <SEP> -4'- <SEP> [2,4-dichlor-1,3,5 triazyl- <SEP> (6) <SEP> -amino <SEP> ] <SEP> -stilben-disulfonsäur <SEP> e- <SEP> (2,2") <tb> mit <SEP> I. <SEP> Mol <SEP> N-lIethyl-taurin-natriiun <SEP> imzsetzt. EMI0002.0002 PATENT CLAIM: <tb> Procedure <SEP> for <SEP> production <SEP> of a <SEP> new one <tb> Derivatives <SEP> der <SEP> 4,4'-diamino-stilbene-disulfonic acid- (2,2 '), <SEP> characterized by <SEP>, <SEP> that <tb> man <SEP> 1 <SEP> mol <SEP> of the <SEP> disodium salt <SEP> of <SEP> 4 - [(p methoxy-benzoyl) <SEP> -amino] <SEP> -4'- < SEP> [2,4-dichloro-1,3,5 triazyl- <SEP> (6) <SEP> -amino <SEP>] <SEP> -stilbene-disulfonic acid <SEP> e- <SEP> (2.2 ") <tb> with <SEP> I. <SEP> Mol <SEP> N-ethyl-taurine-sodium <SEP> in addition. Das so erhaltene neue Natriumsalz der 4-[ (p-Methoxy-benzoyl)-amino]-4'-[4-ehlor-2- methyl - (ss - sulfo - äthyl) -amino-1,3,5 -triazyl- (6)-amino]-stilben-disulfonsäure-(2,2') ist ein helles, in Wasser lösliches Pulver. Es kann als optisches Aufhellmittel verwendet werden. The new sodium salt of 4- [(p-methoxy-benzoyl) -amino] -4 '- [4-chloro-2-methyl- (ss-sulfo-ethyl) -amino-1,3,5-triazyl- (6) -amino] -stilbene-disulfonic acid- (2,2 ') is a light-colored powder which is soluble in water. It can be used as an optical brightening agent. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass die Umsetzung in wäss- riler Lösung bei 25 vorgenommen wird. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the reaction is carried out at 25 in aqueous solution.
CH295297D 1949-10-28 1949-10-28 Process for the preparation of a derivative of 4,4'-diamino-stilbene-disulfonic acid- (2,2 '). CH295297A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH291791T 1949-10-28
CH295297T 1949-10-28

Publications (1)

Publication Number Publication Date
CH295297A true CH295297A (en) 1953-12-15

Family

ID=25733140

Family Applications (1)

Application Number Title Priority Date Filing Date
CH295297D CH295297A (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) CH295297A (en)

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