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CH139638A - Process for the preparation of a condensation product of the benzodiazine series. - Google Patents

Process for the preparation of a condensation product of the benzodiazine series.

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Publication number
CH139638A
CH139638A CH139638DA CH139638A CH 139638 A CH139638 A CH 139638A CH 139638D A CH139638D A CH 139638DA CH 139638 A CH139638 A CH 139638A
Authority
CH
Switzerland
Prior art keywords
condensation product
mol
solution
series
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH139638A publication Critical patent/CH139638A/en

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Description

  

  . Verfahren zur Darstellung eines Kondensationsproduktes der     Benzodiazinreihe.       Gegenstand     vorliegender    Erfindung ist  ein Verfahren zur Darstellung eines Kon  densationsproduktes der     Benzod'ia@zinreihe,          daiglurch    :gekennzeichnet,     dass    man 1     Mol.        6-          Nitro-2.4-dichl'orchinazo@lin    mit 1     Mol.        1-          Amino-8=oxynapbtalin-3.6--disulfosäure    und  1     Mol.        Aniilin        kondensiert.       <I>Beispiel:

  </I>    34,1 Gewichtsteile des sauren     Natrium-          saIzes    :der     1-Amino,8-oxynaphtaIin-3.6-,di-          su'lfosäure    werden unter Zusatz von     etwas     Natronlauge in 700 Teilen Wasser gelöst.

         Man    trägt in diese Lösung bei 35 Ibis 40'  24,3 Gewichtsteile     feinst        gepulvertes        6-Nitro-          2.4-dichlorchina,zolin    ein.     Sobald        idie        1-          Amino-8-,oxynaphtalin-,3.6-disulfosäure        ver-          sAhwunden    ist, gibt man 20     Gewichtsteile     Anilin zu und     erhitzt    auf 80 bis 90  .

   Nach  4 bis 5     Stunden    macht man mit     ;Soda,deut-          lich    alkalisch und     destilliert    das überschüs  sige     Anilin    mit     Wasserdampf    ab.     Beim    Er-    kalten scheidet sich das     Reaktionsprodukt,     dem als freie :Säure die Formel  
EMI0001.0041     
         mikommt,    als     gallertige    Masse ab.

   Durch  Zusatz von     Kochsalz    und gutes Rühren     wir:l     ,die Masse gut     filtrierbar.        ,Sie        wird    abgesaugt,  gut ausgepresst und .getrocknet.  



  Unter Zusatz von Natronlauge kann man  sie in Wasser lösen. Diese Lösung ist gelb,  sie     fluoresziert    nicht. Das Kondensations  produkt kuppelt     mit    1     Mol.        einer        Diazonium-          verbind'ung.    Durch Reduktion :mit Eisen und           Essigsäure    erhält man einen Körper der  Formel:

    
EMI0002.0002     
    Dieses, ein     sehwa"chbraunes,    in     'Sodalösunn     leicht lösliches Pulver, lässt sich in der übli  chen Weise     diazotieren.    Giesst man     idie        Di-          azoniumverbindung    in eine     Sadalösung,    so  erhält man durch innere Kupplung eine  blaue     Färbung,    welche sehr unbeständig ist.



  . Process for the preparation of a condensation product of the benzodiazine series. The present invention relates to a process for the preparation of a condensation product of the Benzod'ia @ zin series, daiglurch: characterized in that 1 mol. 6- Nitro-2.4-dichl'orchinazo@lin with 1 mol. 1- Amino-8 = oxynapbtalin- 3.6 - disulfonic acid and 1 mole of aniline condensed. <I> example:

  34.1 parts by weight of the acidic sodium salt: the 1-amino, 8-oxynaphthaine-3.6-, di-su'lfoic acid are dissolved in 700 parts of water with the addition of a little sodium hydroxide solution.

         In this solution, at 35 ibis 40 ', 24.3 parts by weight of extremely fine powdered 6-nitro-2,4-dichlorochina, zoline are added. As soon as the 1-amino-8-, oxynaphthalene-, 3,6-disulfonic acid is gone, 20 parts by weight of aniline are added and the mixture is heated to 80 to 90.

   After 4 to 5 hours you join in; Soda, clearly alkaline, and distill off the excess aniline with steam. When it cools down, the reaction product separates out as a free acid: the formula
EMI0001.0041
         mikommt, as a gelatinous mass.

   By adding table salt and stirring well we: l, the mass can be easily filtered. , It is vacuumed, squeezed out well and dried.



  They can be dissolved in water with the addition of caustic soda. This solution is yellow, it does not fluoresce. The condensation product couples with 1 mole of a diazonium compound. By reduction: with iron and acetic acid you get a body of the formula:

    
EMI0002.0002
    This, a very brown powder which is easily soluble in soda solution, can be diazotized in the usual way. If the diazonium compound is poured into a Soda solution, an internal coupling gives a blue coloration which is very unstable.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Konden- sationsproduktes der Benzodiazinreihe von der Formel EMI0002.0015 ,dadurch gekennzeichnet, dass man 1 Mol. 6- Nitro-2.4-id!ichlorehinazoilin mit 1 Mol. 1- Amino-8-oxynaphta,lin-8.6-disulfosäure und 1 Mol. Anilin kondensiert. Das Kondensationsprodukt, PATENT CLAIM: Process for the preparation of a condensation product of the benzodiazine series of the formula EMI0002.0015 , characterized in that 1 mol. 6-nitro-2,4-id! ichlorehinazoilin is condensed with 1 mol. 1-amino-8-oxynaphtha, lin-8,6-disulfonic acid and 1 mol. aniline. The condensation product, das als Zwi schenprodukt für .die Herstellung von Farb stoffen und Arzneimitteln dienen soll, löst sich in Wasser unter Zusatz von Natron lauge zu einer gelben, nicht fluoreszierenden Lösung. Es kuppelt mit 1 Mol. einer Diazo- niumverbindung. Durch Reduktion mit Eisen und Essigsäure kann man die Nitrogruppe reduzieren. which is to serve as an intermediate product for the manufacture of dyes and drugs, dissolves in water with the addition of sodium hydroxide to form a yellow, non-fluorescent solution. It couples with 1 mole of a diazonium compound. The nitro group can be reduced by reduction with iron and acetic acid. Man erhält so ein sehwachbrau- nes, in Sololösung leicht lösliches Pulver, das sich in üblicher Weise diazotieren lässt. Giesst man die Disazoverbindung in 3oda- lösiing, so erhält man durch innere Kupplung eine blaue Färbung, die sehr unbeständig ist. This gives a very weak brown powder which is easily soluble in solo solution and which can be diazotized in the usual way. If the disazo compound is poured into 3odal solution, an internal coupling gives a blue coloration which is very unstable.
CH139638D 1927-03-31 1928-03-20 Process for the preparation of a condensation product of the benzodiazine series. CH139638A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE139638X 1927-03-31
CH133192T 1927-12-12

Publications (1)

Publication Number Publication Date
CH139638A true CH139638A (en) 1930-04-30

Family

ID=25711996

Family Applications (1)

Application Number Title Priority Date Filing Date
CH139638D CH139638A (en) 1927-03-31 1928-03-20 Process for the preparation of a condensation product of the benzodiazine series.

Country Status (1)

Country Link
CH (1) CH139638A (en)

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