CH169257A - Process for the preparation of an azo compound. - Google Patents

Process for the preparation of an azo compound.

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Publication number
CH169257A
CH169257A CH169257DA CH169257A CH 169257 A CH169257 A CH 169257A CH 169257D A CH169257D A CH 169257DA CH 169257 A CH169257 A CH 169257A
Authority
CH
Switzerland
Prior art keywords
hydrochloride
azo compound
propyl
acid
amino
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 CH169257A publication Critical patent/CH169257A/en

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Description

  

  Verfahren zur Darstellung einer     Azoverbindung.       Das Hauptpatent betrifft die Darstellung  einer     Azoverbindung,    in der eine durch einen  basischen Rest substituierte     Aminogruppe    an  einem mit der     Azogruppierung    verknüpften       Benzolring    gebunden ist.  



  Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Darstellung des 3',     5'-Dichlor-          4-        [N-        (r-amino-p-oxy-a-propyl)    -     äthylamino]        -          azobenzol-hydrochlorides.    Das Verfahren ist  dadurch gekennzeichnet, dass man die     Diazo-          verbindung    des     3,5-Dichlor-anilins    auf     N-(r-          arnino-p-oxy        -a-propyl)

  -äthylami        nobenzol    zweck  mässig in Gegenwart eines säurebindenden  Mittels einwirken lässt und die so erhältliche       Azoverbindung    mittelst Salzsäure in ihr     Hydro-          chlorid    umwandelt.  



  Das so erhältliche 3',     5'-Dichlor-4-[N-(r-          amino-ss-oxy-a-propyl)-äthylamino]        -azobenzol-          hydrochlorid    bildet hellbraune Nadeln vom  Schmelzpunkt 1340, die sich in Wasser gelb,  in verdünnten Mineralsäuren kirschrot lösen.  Die neue Verbindung soll therapeutische Ver  wendung finden.

      <I>Beispiel:</I>  16,2     gr        3,5-Dichloranilin    werden mit 30 cm'  Salzsäure und Wasser gelöst und mit 7     gr    Na  triumnitrit     diazotiert,    dann werden 19,4     gr          N-(r-amino-ss-oxy-a-propyl)-äthylaminoberrzol,     in Essigsäure gelöst, hinzugegeben und die  Kupplung durch Zusatz von     Natriumacetat     vervollständigt. Man erhält durch Zusatz von  Salzsäure und     Natriumchlorid    das Hydrochlorid .

    des     3,5-Dichlor-4-[N-(r-amino-p-oxy-a-propyl)-          äthylamino]-azobenzols,    welches aus 30     %igem     Alkohol umkristallisiert hellbraune Nadeln  vom Schmelzpunkt 1340 liefert, die sich in  Wasser gelb, in verdünnter Mineralsäure  kirschrot lösen.



  Process for the preparation of an azo compound. The main patent relates to the preparation of an azo compound in which an amino group substituted by a basic radical is bonded to a benzene ring linked to the azo group.



  The present patent relates to a process for the preparation of 3 ', 5'-dichloro-4- [N- (r-amino-p-oxy-a-propyl) - ethylamino] - azobenzene hydrochloride. The process is characterized in that the diazo compound of 3,5-dichloro-aniline is converted to N- (r- arnino-p-oxy-a-propyl)

  -äthylami nobenzol is expediently allowed to act in the presence of an acid-binding agent and the azo compound thus obtainable is converted into its hydrochloride using hydrochloric acid.



  The 3 ', 5'-dichloro-4- [N- (r-amino-ss-oxy-a-propyl) -äthylamino] -azobenzene hydrochloride which can be obtained in this way forms light brown needles with a melting point of 1340, which turn yellow in water, in Dissolve diluted mineral acids in cherry red. The new compound is intended to find therapeutic use.

      <I> Example: </I> 16.2 g of 3,5-dichloroaniline are dissolved with 30 cm 'hydrochloric acid and water and diazotized with 7 g of sodium nitrite, then 19.4 g of N- (r-amino-ss- oxy-a-propyl) -äthylaminoberrzol, dissolved in acetic acid, added and the coupling completed by adding sodium acetate. The hydrochloride is obtained by adding hydrochloric acid and sodium chloride.

    of 3,5-dichloro-4- [N- (r-amino-p-oxy-a-propyl) -ethylamino] -azobenzene, which recrystallized from 30% alcohol gives light brown needles with a melting point of 1340, which turn yellow in water , dissolve cherry red in dilute mineral acid.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung einer Azover- bindung, dadurch gekennzeichnet, dass man die Diazoverbindung des 3,5-Dicbloranilins auf N-(r-amino-p-oxy-a-propyl)-äthylamino- benzol einwirken lässt und die so erhältliche Azoverbindung mittelst Salzsäure in ihr Hydrochlorid umwandelt. PATENT CLAIM: Process for the preparation of an azo compound, characterized in that the diazo compound of 3,5-dicbloraniline is allowed to act on N- (r-amino-p-oxy-a-propyl) ethylaminobenzene and the azo compound obtainable in this way converted into its hydrochloride by means of hydrochloric acid. Das so erhältliche 3',5'-Dichlor-4-[N-(r- amino-ss-ogy-a-propyl)-äthylamino] - azobenzol- hydrochlorid bildet hellbraune Nadeln vom Schmelzpunkt 134 , die sich in Wasser gelb, in verdünnten Mineralsäuren kirschrot lösen. Die neue Verbindung soll therapeutische Ver wendung finden. UNTERANSPRVCHE: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Reaktions- komponenten unter Zusatz eines säure bindenden Mittels aufeinander einwirken lässt. 2. The 3 ', 5'-dichloro-4- [N- (r-amino-ss-ogy-a-propyl) -äthylamino] -azobenzene hydrochloride which can be obtained in this way forms light brown needles with a melting point of 134, which turn yellow in water, in Dissolve diluted mineral acids in cherry red. The new compound is intended to find therapeutic use. SUBCLAIMS: 1. Method according to claim, characterized in that the reaction components are allowed to act on one another with the addition of an acid-binding agent. 2. Verfahren nach Unteranspruch 1, dadurch gekennzeichnet, dass als säurebindendes Mittel Natriumacetat Verwendung findet. 3. Verfahren nach Patentansprucb, dadurch gekennzeichnet, dass das gebildete Hydro- chlorid durch Zusatz von Natriumchlorid ausgesalzen wird. Method according to dependent claim 1, characterized in that sodium acetate is used as the acid-binding agent. 3. The method according to patent claim, characterized in that the hydrochloride formed is salted out by adding sodium chloride.
CH169257D 1931-11-07 1932-11-05 Process for the preparation of an azo compound. CH169257A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE169257X 1931-11-07
CH165653T 1932-11-05

Publications (1)

Publication Number Publication Date
CH169257A true CH169257A (en) 1934-05-15

Family

ID=25718137

Family Applications (1)

Application Number Title Priority Date Filing Date
CH169257D CH169257A (en) 1931-11-07 1932-11-05 Process for the preparation of an azo compound.

Country Status (1)

Country Link
CH (1) CH169257A (en)

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