AT152825B - Process for the preparation of basic substituted aminoazo compounds. - Google Patents

Process for the preparation of basic substituted aminoazo compounds.

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Publication number
AT152825B
AT152825B AT152825DA AT152825B AT 152825 B AT152825 B AT 152825B AT 152825D A AT152825D A AT 152825DA AT 152825 B AT152825 B AT 152825B
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AT
Austria
Prior art keywords
preparation
aminoazo compounds
basic substituted
methyl
aminoazo
Prior art date
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German (de)
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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.)
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Publication date
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Publication of AT152825B publication Critical patent/AT152825B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Description

  

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  Verfahren zur Darstellung basisch substituierter Aminoazoverbindungen. 
 EMI1.1 
 

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   Beispiel   2 : 49 g 4'-Ch or-2-methyl-4-aminoazobenzol [aus   Methylalkohol   braunrote-Nadeln   vom F =   920   erhalten durch Kuppeln von 4-Chlor-l-diazobenzol mit m-Toluidin] werden mit 35 g   salzsaurem   Salz des    < .-Methyl-S-diäthylaminobutylesters   der p-Toluolsulfonsäure {erhalten durch Umsetzen von   p-Toluolsulfonsäurechlorid   mit 5-Diäthylaminopentanol-(2) [s. Patentschrift Nr. 118738] 
 EMI2.1 
 wodurch das nicht umgesetzte    4'-Chlor-2-methyl-4-aminoazobenzol   als freie Base abgeschieden wird, die mit Äther oder Benzol ausgeschüttelt werden kann.

   Das entstandene   4'-Chlor-2-methyl-4- [a-Methyl-     #-diäthylaminobutylamino]-azobenzol,   das als Salz in Lösung bleibt, wird durch Zugabe von Natronlauge abgeschieden, mit Äther ausgeschüttelt und mit einer ätherischen Chlorwasserstofflösung in das salzsaure Salz umgewandelt. Dieses bildet rotgrün schillernde Kristalle vom F = 131 , die sich in Wasser mit orangegelber Farbe leicht lösen ; die Lösung wird durch Mineralsäuren kirschrot gefärbt. 



   PATENT-ANSPRÜCHE :
1. Verfahren zur Darstellung basisch substituierter Aminoazoverbindungen, dadurch gekenn-' zeichnet, dass man auf'Aminoazoverbindungen der allgemeinen Formel R. N : N.   R'.     NHR"   (worin R einen aromatischen, heterocyclischen oder aromatisch-heterocyclischen Rest, R'einen Rest der Benzolreihe und   N'einen   beliebigen einwertigen Rest oder Wasserstoff bedeuten) reaktionsfähige Ester aliphatischer Aminoalkohole einwirken lässt.



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  Process for the preparation of basic substituted aminoazo compounds.
 EMI1.1
 

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   Example 2: 49 g of 4'-Ch or-2-methyl-4-aminoazobenzene [obtained from methyl alcohol red-brown needles with F = 920 by coupling 4-chloro-1-diazobenzene with m-toluidine] are mixed with 35 g of hydrochloric acid of the <. -methyl-S-diethylaminobutyl ester of p-toluenesulfonic acid {obtained by reacting p-toluenesulfonic acid chloride with 5-diethylaminopentanol- (2) [s. Patent No. 118738]
 EMI2.1
 whereby the unreacted 4'-chloro-2-methyl-4-aminoazobenzene is deposited as a free base, which can be extracted with ether or benzene.

   The resulting 4'-chloro-2-methyl-4- [a-methyl- # -diethylaminobutylamino] -azobenzene, which remains in solution as a salt, is deposited by adding sodium hydroxide solution, extracted with ether and mixed with an ethereal hydrogen chloride solution into the hydrochloric acid Converted to salt. This forms shimmering red-green crystals of F = 131, which easily dissolve in water with an orange-yellow color; the solution is colored cherry red by mineral acids.



   PATENT CLAIMS:
1. Process for the preparation of basic substituted aminoazo compounds, characterized in that one is based on aminoazo compounds of the general formula R. N: N. R '. NHR "(where R is an aromatic, heterocyclic or aromatic-heterocyclic radical, R 'is a radical of the benzene series and N' is any monovalent radical or hydrogen) allows reactive esters of aliphatic amino alcohols to act.

 

Claims (1)

2. Ausführungsform des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, dass man solche Ausgangsstoffe verwendet, von welchen einer in wenigstens einer Aminogruppe durch einen leicht abspaltbaren Säurerest, z. B. einen Acyl- oder Sulfonsäurerest, substituiert ist, der nach erfolgter Kondensation wieder abgespalten wird, 2. Embodiment of the method according to claim 1, characterized in that such starting materials are used, one of which in at least one amino group by an easily cleavable acid residue, eg. B. an acyl or sulfonic acid residue, which is split off again after condensation has taken place,
AT152825D 1931-11-07 1932-11-03 Process for the preparation of basic substituted aminoazo compounds. AT152825B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE152825X 1931-11-07

Publications (1)

Publication Number Publication Date
AT152825B true AT152825B (en) 1938-03-10

Family

ID=5675286

Family Applications (1)

Application Number Title Priority Date Filing Date
AT152825D AT152825B (en) 1931-11-07 1932-11-03 Process for the preparation of basic substituted aminoazo compounds.

Country Status (1)

Country Link
AT (1) AT152825B (en)

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