CH150173A - Process for the preparation of a diazoamino compound. - Google Patents

Process for the preparation of a diazoamino compound.

Info

Publication number
CH150173A
CH150173A CH150173DA CH150173A CH 150173 A CH150173 A CH 150173A CH 150173D A CH150173D A CH 150173DA CH 150173 A CH150173 A CH 150173A
Authority
CH
Switzerland
Prior art keywords
compound
preparation
diazoamino compound
diazo
diazoamino
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 CH150173A publication Critical patent/CH150173A/en

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

Description

  

  Verfahren zur     Darstellunz    einer     Diazoaminoverbindunz.       Durch das Hauptpatent ist ein Verfahren  zur Darstellung einer     Diazoaminoverbindung     beschrieben, dadurch gekennzeichnet, dass  man die     Diazoverbindung    aus     3-Chloranilin     auf     2-Amino-4-sulfobenzoesäure    einwirken  lässt.  



  Gegenstand vorliegender Erfindung ist nun  ein     Verfahren    zur Darstellung einer     Diazo-          aminoverbindung,    dadurch gekennzeichnet,  dass man die     Diazoverbindung    aus 2.     5-Di-          chloranilin    auf     2-Naphtylamin-4.6.8-tri-          sulfosäure    einwirken lässt.  



  <I>Beispiel:</I>  Die aus 161 Gewichtsteilen 2.     5-Dichlor-          anilin    in üblicher Weise mit Salzsäure und       Natriumnitrit    erhältliche Lösung von 2.     5-          Dichlorbenzol-l-diazoniumchlorid    lässt man  in eine neutrale Lösung von     2-Naphtylamin-          4.        6.8-trisulfosäure    einlaufen und stumpft  die kongosaure Reaktion zweckmässig mit       Natriumacetat    ab.

   Nach kurzer Zeit ist die    Bildung der     Diazoaminoverbindung    von der  Formel:  
EMI0001.0025     
    vollendet, die sich auf Zusatz von Kochsalz  als in Wasser leicht lösliches     Natriumsalz     abscheidet, das in üblicher Weise isoliert und  getrocknet wird. Die     Diazoaminoverbindung     lässt sich in wässeriger Lösung durch Säuren  leicht wieder in die Ausgangskomponenten  spalten. Sie stellt ein in Wasser leicht lös  liches gelbes Pulver dar, das in der     Färberei-          und    Druckereipraxis, sowie als Schädlings  bekämpfungsmittel Verwendung finden soll.



  Process for the preparation of a diazoamino compound. The main patent describes a method for preparing a diazoamino compound, characterized in that the diazo compound from 3-chloroaniline is allowed to act on 2-amino-4-sulfobenzoic acid.



  The present invention now relates to a process for preparing a diazoamino compound, characterized in that the diazo compound from 2,5-dichloroaniline is allowed to act on 2-naphthylamine-4,6,8-trisulfonic acid.



  <I> Example: </I> The solution of 2.5-dichlorobenzene-1-diazonium chloride, which can be obtained from 161 parts by weight of 2.5-dichloro aniline in the usual way with hydrochloric acid and sodium nitrite, is left in a neutral solution of 2-naphthylamine 4. Run in 6.8-trisulfonic acid and expediently blunt the Congo acidic reaction with sodium acetate.

   After a short time, the formation of the diazoamino compound has the formula:
EMI0001.0025
    completed, which separates on the addition of common salt as a readily soluble sodium salt, which is isolated and dried in the usual way. The diazoamino compound can easily be split back into the starting components in aqueous solution by acids. It is a yellow powder that is easily soluble in water and is said to be used in dyeing and printing and as a pesticide.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung einer Diazo- aminoverbindung, dadurch gekennzeichnet, dass man die Diazoverbindung aus 2.5-Di- chloranilin auf 2-Naphtylamin-4:-6.8-tri- sulfosäure einwirken lässt. Die neue Verbindung stellt ein in Wasser leicht lösliches gelbes Pulver dar und wird von Säuren leicht in die Komponenten zu- rückverwandelt. Sie soll in der Färberei- und Druckereipraxis, sowie als Schädlingsbekämp fungsmittel Verwendung finden. PATENT CLAIM: Process for the preparation of a diazo-amino compound, characterized in that the diazo compound from 2.5-dichloroaniline is allowed to act on 2-naphthylamine-4: -6.8-trisulfonic acid. The new compound is a yellow powder that is easily soluble in water and is easily converted back into its components by acids. It should be used in dyeing and printing practice and as a pest control agent.
CH150173D 1928-08-07 1929-07-20 Process for the preparation of a diazoamino compound. CH150173A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE150173X 1928-08-07
CH145151T 1929-06-28

Publications (1)

Publication Number Publication Date
CH150173A true CH150173A (en) 1931-10-15

Family

ID=25714611

Family Applications (1)

Application Number Title Priority Date Filing Date
CH150173D CH150173A (en) 1928-08-07 1929-07-20 Process for the preparation of a diazoamino compound.

Country Status (1)

Country Link
CH (1) CH150173A (en)

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