CH147076A - Process for the preparation of 2,6-diamino-2'-butyloxy-3.5'-azopyridine. - Google Patents

Process for the preparation of 2,6-diamino-2'-butyloxy-3.5'-azopyridine.

Info

Publication number
CH147076A
CH147076A CH147076DA CH147076A CH 147076 A CH147076 A CH 147076A CH 147076D A CH147076D A CH 147076DA CH 147076 A CH147076 A CH 147076A
Authority
CH
Switzerland
Prior art keywords
butyloxy
azopyridine
preparation
diamino
salts
Prior art date
Application number
Other languages
German (de)
Inventor
Schering-Kahlbaum A G
Original Assignee
Schering Kahlbaum 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
Priority claimed from CH147076T external-priority
Application filed by Schering Kahlbaum Ag filed Critical Schering Kahlbaum Ag
Publication of CH147076A publication Critical patent/CH147076A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/72Nitrogen atoms
    • C07D213/74Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals

Description

  

  Verfahren zur Darstellung von     2.6-Diamino-2'-uutyloay-3.5'-azopyridin.       In dem Hauptpatent ist ein Verfahren  zur Darstellung von     2.6-Diainino-2'-oxy-3.5'-          azopyridin    beschrieben, das darin besteht,  dass     2-Oxy-5-aminopy        @idiri    dianotiert und die  entstandene     Diazoverbindungmit        2.6-Diamino-          pyridin    gekuppelt wird.

   Benutzt man zur  Dianotierung an Stelle des     2-Oxy-5-amino-          pyridins    das     2-Butyl-5-aminopyridin,    und  kuppelt man die entstandene     Diazoverbindung     mit     2.6-Diaminopyridin,    so erhält man das       2.6-Diamino-2'-butyloxy-3.5'-azopyridin,    das  sich ebenfalls durch hervorragende bakterizide  Eigenschaften auszeichnet. Das     2.6-Diamino-          2'-butyloxy-3.5'-azopyridin    bildet rote Nadeln  vom Schmelzpunkt     12911    C, mit Säure bildet  es Salze; es dient als solches oder in Form  seiner Salze therapeutischen Zwecken.  



  <I>Beispiel</I>  23     gr        2-Butyloxy    - 5 -     aminopyridinchlor-          hydrat    (hergestellt durch Einwirkung von       Natriumbutylat    auf     2-Chlor-5-nitropyridin    in    ätherischer Lösung und Reduktion des bei  <B>1530</B> C unter 14 mm Druck übergehenden  2 -     Butyloxy    - 5 -     nitropyridirrs    mittelst     Zinn-          chlorür)    werden dianotiert und mit 10.9     gr          2.6-Diaminopyridin    gekuppelt. Die Base wird  ausgefällt und aus Alkohol umkristallisiert.

    Sie bildet rotbraune Nadeln vom Schmelz  punkt 129  C.



  Process for the preparation of 2.6-diamino-2'-uutyloay-3.5'-azopyridine. The main patent describes a process for the preparation of 2,6-diainino-2'-oxy-3.5'-azopyridine, which consists in dianotating 2-oxy-5-aminopy @idiri and coupling the resulting diazo compound with 2,6-diamino pyridine .

   If 2-butyl-5-aminopyridine is used instead of 2-oxy-5-aminopyridine for dianotation and the resulting diazo compound is coupled with 2,6-diaminopyridine, then 2,6-diamino-2'-butyloxy-3.5 is obtained '-azopyridine, which is also characterized by excellent bactericidal properties. The 2,6-diamino-2'-butyloxy-3,5'-azopyridine forms red needles with a melting point of 12911 C, with acid it forms salts; it is used as such or in the form of its salts for therapeutic purposes.



  <I> Example </I> 23 gr 2-butyloxy - 5 - aminopyridine chlorohydrate (produced by the action of sodium butoxide on 2-chloro-5-nitropyridine in an ethereal solution and reduction of the temperature at <B> 1530 </B> C below 2 - butyloxy - 5 - nitropyridine with a pressure of 14 mm by means of tin chlorine) are dianotized and coupled with 10.9 g of 2,6-diaminopyridine. The base is precipitated and recrystallized from alcohol.

    It forms red-brown needles with a melting point of 129 C.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von 2.6-Di- amino-2'-butyloxy-3.5'-azopyridin, dadurch ge kennzeichnet, dass man 2-Butyloxy-5-amino- pyridin dianotiert und die entstehende Diazo- verbindung mit 2.6-Diaminopyridin kuppelt. Das 2.6-Diamirio-2'-butyloxy-3.5'-azopyridin bildet rote Nadeln vom Schmelzpunkt 129 C. Es bildet mit Säuren Salze und dient als solches oder in Form seiner Salze therapeu tischen Zwecken. PATENT CLAIM: Process for the preparation of 2,6-di-amino-2'-butyloxy-3,5'-azopyridine, characterized in that 2-butyloxy-5-aminopyridine is dianotated and the resulting diazo compound is coupled with 2,6-diaminopyridine. The 2,6-diamirio-2'-butyloxy-3.5'-azopyridine forms red needles with a melting point of 129 C. It forms salts with acids and is used as such or in the form of its salts for therapeutic purposes.
CH147076D 1929-11-08 1929-11-08 Process for the preparation of 2,6-diamino-2'-butyloxy-3.5'-azopyridine. CH147076A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH147076T 1929-11-08
CH145270T 1929-11-08

Publications (1)

Publication Number Publication Date
CH147076A true CH147076A (en) 1931-05-15

Family

ID=25714662

Family Applications (1)

Application Number Title Priority Date Filing Date
CH147076D CH147076A (en) 1929-11-08 1929-11-08 Process for the preparation of 2,6-diamino-2'-butyloxy-3.5'-azopyridine.

Country Status (1)

Country Link
CH (1) CH147076A (en)

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