CH194340A - Process for the preparation of a naphthylene naphthylimidazole-bis-carboxyethylanilide. - Google Patents

Process for the preparation of a naphthylene naphthylimidazole-bis-carboxyethylanilide.

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Publication number
CH194340A
CH194340A CH194340DA CH194340A CH 194340 A CH194340 A CH 194340A CH 194340D A CH194340D A CH 194340DA CH 194340 A CH194340 A CH 194340A
Authority
CH
Switzerland
Prior art keywords
sep
bis
naphthylene
naphthylimidazole
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Limited Imperial Ch Industries
Original Assignee
Ici Ltd
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 Ici Ltd filed Critical Ici Ltd
Publication of CH194340A publication Critical patent/CH194340A/en

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Description

  

  Verfahren zur Herstellung eines     Naphtoylennaphtylimidazol-bis-carbogyäthylanilids.       Das vorliegende Patent     betrifft        ein    Ver  fahren zur     Herstellung    eines     Naphtoylen-          1    :     ?-naphtylimidazol-bis-carbogyäthylanilids,     welches die folgende Formel besitzt:  
EMI0001.0008     
         durch    Erhitzen von 1 :     8-Dica.rbogynaphtha-          lin-4    :     5-bis-carbogyäthylanilid-anlhydrid        mit     1 :     2-Naphthylendiamin.     



  Man kann hierbei     Anhydrid    des 1     :8-          Dicarbogynaphthalin-4    : 5     -bis-carbogyäthyl-          anilids    verwenden, das erhalten wurde durch  Erhitzung von     1:8-Dicarbogynaphthalin-          4:5-bis-carbogyäthylanilid    bei     Gegenwart     des 1 :

       2-Naphthylendiamins.    Die     Dicarbon-          säure    wird, wie sich     zeigte,    in     das        Anhydrid     umgewandelt, bevor     Kondensation    mit     Naph-          thylendiamin    stattfindet.  



  Die Erhitzung der     Ausgangsstoffe        kann       in Gegenwart einer     Flüssigkeit,        eines    Lö  sungsmittels oder eines     Verdünnungsmittels,     zum     Beispiel    Eisessig,     bewirkt    werden.  



  Die Verbindung ist neu. Sie     ist    ein       orange-rötliches    Produkt, das sich in konzen  trierter Schwefelsäure mit     roter    Farbe löst.  Es     ist    ein Zwischenprodukt für .die Herstel  lung von Farbstoffen.

      <I>Beispiel:</I>    Eine Suspension von 68     Teilen    1 :     2-Naph-          thylendiamin        und    197     Teilen    1 :     8-Dicarbogy-          naphthalin-4    :

   5     -bis-carbogyäthylanil.idanhy-          drid    in 800     Teilen        Eisessig    werden unter       RüekfluB        während    .drei     Stundenerhitzt;    das       Gemisch        wird    dann     in    4000 Teile     kochendes     Wasser .gegossen und das     ungelöste        Material          abfiltriert.  



  Process for the preparation of a naphthylene naphthylimidazole-bis-carbogyäthylanilids. The present patent relates to a process for producing a naphthylene 1:? -Naphtylimidazole-bis-carbogyäthylanilids, which has the following formula:
EMI0001.0008
         by heating 1: 8-Dica.rbogynaphthalin-4: 5-bis-carbogyäthylanilid-anlhydrid with 1: 2-naphthylenediamine.



  You can use anhydride of 1: 8-dicarbogynaphthalene-4: 5 -bis-carbogyethyl anilide, which was obtained by heating 1: 8-dicarbogynaphthalene-4: 5-bis-carbogyethylanilide in the presence of the 1:

       2-naphthylenediamine. As has been shown, the dicarboxylic acid is converted into the anhydride before condensation with naphthylenediamine takes place.



  The starting materials can be heated in the presence of a liquid, a solvent or a diluent, for example glacial acetic acid.



  The connection is new. It is an orange-reddish product that dissolves in concentrated sulfuric acid with a red color. It is an intermediate product for the manufacture of dyes.

      <I> Example: </I> A suspension of 68 parts of 1: 2-naphthylenediamine and 197 parts of 1: 8-dicarbogynaphthalene-4:

   5-bis-carbogyäthylanil.idanhydride in 800 parts of glacial acetic acid are heated under reflux for three hours; the mixture is then poured into 4000 parts of boiling water and the undissolved material is filtered off.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Naph- toylennaphtylimidazol - bis - carbogyäthylani- lids, welches die folgende Formel besitzt: EMI0002.0001 EMI0002.0002 dadurch <SEP> gekennzeichnet, <SEP> dass <SEP> 1 <SEP> : <SEP> 8-Dicarbogy naphthalin-4 <SEP> : <SEP> 5 <SEP> -bis-carbogyäthylanüidanhy dTid <SEP> mit <SEP> 1 <SEP> : PATENT CLAIM: Process for the production of a naphthylene naphthylimidazole - bis - carbogyäthylanilids, which has the following formula: EMI0002.0001 EMI0002.0002 characterized by <SEP>, <SEP> that <SEP> 1 <SEP>: <SEP> 8-Dicarbogy naphthalin-4 <SEP>: <SEP> 5 <SEP> -bis-carbogyäthylanüidanhy dTid <SEP> with <SEP> 1 <SEP>: <SEP> 2-Naphthylendiamin <SEP> erhitzt <SEP> wird. <tb> Es <SEP> wird <SEP> so <SEP> ein <SEP> orangerotes, <SEP> in <SEP> konzentrierter <tb> Schwefelsäure <SEP> mit <SEP> roter <SEP> Farbe <SEP> lösliches <SEP> Pro dukt <SEP> erhalten. EMI0002.0003 <B>UNTERANSPRUCH:</B> <tb> Verfahren <SEP> nach <SEP> Patentanspruch, <SEP> dadurch <tb> gekennzeichnet, <SEP> @dass <SEP> Anhydrid <SEP> des <SEP> 1 <SEP> : <SEP> 8-Di ,carbogynaphthalin-4 <SEP> : <SEP> 5-bis-carbogyäthylani lids <SEP> verwendet <SEP> wird, <SEP> das <SEP> erhalten <SEP> wurde <tb> durch <SEP> Erhitzen <SEP> von <SEP> 1 <SEP> : <SEP> 8-Dicarbogynaphtha lin-4 <SEP> : <SEP> 5-bis-carbogyäthylanilid <SEP> in <SEP> -CGegenwa.rt <tb> des <SEP> 1 <SEP> : <SEP> 2-Naphthylendiamins. <SEP> 2-naphthylenediamine <SEP> is heated <SEP>. <tb> It <SEP> becomes <SEP> so <SEP> a <SEP> orange-red, <SEP> in <SEP> more concentrated <tb> sulfuric acid <SEP> with <SEP> red <SEP> color <SEP> obtained soluble <SEP> product <SEP>. EMI0002.0003 <B> SUBClaim: </B> <tb> Method <SEP> according to <SEP> patent claim, <SEP> thereby <tb> marked, <SEP> @that <SEP> anhydride <SEP> des <SEP> 1 <SEP>: <SEP> 8-Di, carbogynaphthalin-4 <SEP>: <SEP> 5-bis-carbogyäthylani lids < SEP> is used <SEP>, <SEP> the <SEP> received <SEP> <tb> by <SEP> heating <SEP> of <SEP> 1 <SEP>: <SEP> 8-dicarbogynaphtha lin-4 <SEP>: <SEP> 5-bis-carbogyäthylanilid <SEP> in <SEP> -C for about .rt <tb> of <SEP> 1 <SEP>: <SEP> 2-naphthylenediamine.
CH194340D 1934-08-08 1935-07-31 Process for the preparation of a naphthylene naphthylimidazole-bis-carboxyethylanilide. CH194340A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB194340X 1934-08-08
CH187424T 1935-07-31

Publications (1)

Publication Number Publication Date
CH194340A true CH194340A (en) 1937-11-30

Family

ID=25721521

Family Applications (1)

Application Number Title Priority Date Filing Date
CH194340D CH194340A (en) 1934-08-08 1935-07-31 Process for the preparation of a naphthylene naphthylimidazole-bis-carboxyethylanilide.

Country Status (1)

Country Link
CH (1) CH194340A (en)

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