CH375723A - Process for the preparation of N-heterocyclic compounds - Google Patents

Process for the preparation of N-heterocyclic compounds

Info

Publication number
CH375723A
CH375723A CH1438063A CH1438063A CH375723A CH 375723 A CH375723 A CH 375723A CH 1438063 A CH1438063 A CH 1438063A CH 1438063 A CH1438063 A CH 1438063A CH 375723 A CH375723 A CH 375723A
Authority
CH
Switzerland
Prior art keywords
formula
acid
preparation
molecular weight
low molecular
Prior art date
Application number
CH1438063A
Other languages
German (de)
Inventor
Walter Dr Schindler
Daniel Dr Prins
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Priority to CH1438063A priority Critical patent/CH375723A/en
Publication of CH375723A publication Critical patent/CH375723A/en

Links

Landscapes

  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

  

  Verfahren zur Herstellung von     N-heterocyclischen    Verbindungen    Die vorliegende     Erfindung    betrifft ein     Verfahren     zur Herstellung von neuen     N-heterocyclischen    Ver  bindungen mit wertvollen pharmakologischen Eigen  schaften.  



  Es wurde überraschenderweise gefunden, dass  Derivate des     Iminodibenzyls    (10,11     Dihydro-5H-          dibenzo[b,f]azepin)    und     Iminostilbens        (5H-Dibenzo-          [b,f]azepin)    der Formel  
EMI0001.0011     
    worin X die Äthylen- oder     Vinylengruppe,    Y Wasser  stoff, ein Halogenatom oder einen     niedermolekularen          Alkylrest,    Z Wasserstoff, ein     Halogenatom    oder  einen niedermolekularen     Alkylrest,

          alkylen    einen       geradkettigen    oder verzweigten     Alkylenrest    mit 2-6       Kohlenstoffatomen,    R einen     niedermolekularen    Al  kyl- oder     Alkenylrest    oder einen     Cycloalkylrest    be  deuten,     wertvolle    pharmakologische Eigenschaften,  insbesondere antiallergische,     spasmolytische,        anti-          convulsive    und sedative Wirksamkeit besitzen.  



  Die neuen Verbindungen der Formel I werden  erfindungsgemäss     hergestellt,    indem man eine Ver  bindung der     Formel     
EMI0001.0030     
    worin Ar einen     Arylmethylrest,    insbesondere den       Benzylrest,    bedeutet,     hydrogenolysiert,    z. B. in Ge  genwart von     Raney-Nickel    oder     Edelmetallkatalysa-          toren.    Ausgangsstoffe der     Formel        1I    sind z.

   B. durch  Umsetzung von reaktionsfähigen     Estern    von     Hy-          droxyverbindungen    der Formel  
EMI0001.0042     
    mit N     Alkyl        arylmethyl-aminen,        insbesondere        N-Al-          kyl-benzylaminen,        erhältlich.     



  Ausgangsstoffe der Formel     II    können auch in an  derer Weise gewonnen werden, z. B. durch Reduk  tion von 5 -     (N    -     Alkyl    -     benzoylamino-alkyl)-iminodi-          benzylen    mit     Lithium-aluminiumhydrid,    oder durch  Kondensation von     gegebenenfalls        substituiertem          Iminodibenzyl    der     Formel     
EMI0001.0059     
    mit einem reaktionsfähigen Ester eines N     Aryl-          methyl        alkyl-aminoalkanols.     



  Mit anorganischen oder organischen Säuren, wie  Salzsäure,     Bromwasserstoffsäure,    Schwefelsäure,  Phosphorsäure,     Methansulfonsäure,        Äthandisulfon     säure, Essigsäure,     Citronensäure,        Äpfelsäure,    Bern  steinsäure,     Fumarsäure,        Maleinsäure,    Weinsäure,       Benzoesäure    und     Phthalsäure    bilden die erfindungs-      gemäss erhaltenen sekundären Basen wasserlösliche  Salze.  



  Im     nachfolgenden    Beispiel bedeuten Teile Ge  wichtsteile; diese verhalten sich zu     Volumteilen    wie  g zu     cm3.    Die     Temperaturen    sind in Celsiusgraden  angegeben.  



  <I>Beispiel</I>  8,5 Teile     5-(a-N-Benzyl-N-methylaminomethyl-          äthyl)-iminodibenzyl,190TeileDioxan,10TeileWasser     und 10 Teile     Raney-Nickel    werden während 2  Stunden bei 80  und 30     Atm.    Druck     hydriert.    Die  vom Katalysator befreite Reaktionslösung wird ein  gedampft. Der Rückstand enthält das gesuchte     5-(a-          Methylaminomethyl-äthyl)-iminodibenzyl,    das nach  Überführung der Rohbasen     in    die Hydrochloride  durch     fraktionierte    Kristallisation des     Salzgemisches,     z.

   B. aus     Methanol-Äther,    als Hydrochlorid vom       Smp.    226  isoliert wird.  



  In analoger Weise wird aus     5-(a-N-Benzyl-N-          cyclopentylamino-isobutyl)-iminodibenzyl    das     5-(a-Cy-          clopentylamino-isobutyl)-iminodibenzyl    erhalten.  



  Das 5 - (a -     Methylaminomethyl    -     äthyl)    -     iminodi-          benzyl    lässt sich auch in Form des zugehörigen     Acet-          amides    abtrennen, indem man die Rohbasen nach       Schotten-Baumann    mit     Acetylchlorid    behandelt, die  gebildeten neutralen Anteile in     benzolischer    Lösung  über 60-100 Teilen     Aluminiumoxyd    filtriert, die       benzolischen    Filtrate eindampft und den Rück  stand aus     Äther-Petroläther        kristallisiert:

          5-(a-N-          methyl-acetamidomethyl-äthyl)-iminodibenzyl    vom       Smp.        84-85.  



  Process for the preparation of N-heterocyclic compounds The present invention relates to a process for the preparation of new N-heterocyclic compounds with valuable pharmacological properties.



  It has surprisingly been found that derivatives of iminodibenzyl (10,11 dihydro-5H-dibenzo [b, f] azepine) and iminostilbene (5H-dibenzo- [b, f] azepine) of the formula
EMI0001.0011
    wherein X is the ethylene or vinylene group, Y is hydrogen, a halogen atom or a low molecular weight alkyl radical, Z is hydrogen, a halogen atom or a low molecular weight alkyl radical,

          alkylene is a straight-chain or branched alkylene radical with 2-6 carbon atoms, R is a low molecular weight alkyl or alkenyl radical or a cycloalkyl radical, have valuable pharmacological properties, in particular antiallergic, spasmolytic, anti-convulsive and sedative activity.



  The new compounds of the formula I are prepared according to the invention by adding a compound of the formula
EMI0001.0030
    wherein Ar is an arylmethyl radical, in particular the benzyl radical, is hydrogenolyzed, e.g. B. in the presence of Raney nickel or precious metal catalysts. Starting materials of the formula 1I are z.

   B. by reacting reactive esters of hydroxy compounds of the formula
EMI0001.0042
    with N-alkyl arylmethylamines, in particular N-alkylbenzylamines, obtainable.



  Starting materials of the formula II can also be obtained in other ways, for. B. by reducing 5 - (N - alkyl - benzoylamino-alkyl) -iminodibenzylene with lithium aluminum hydride, or by condensation of optionally substituted iminodibenzyl of the formula
EMI0001.0059
    with a reactive ester of an N arylmethyl alkylaminoalkanol.



  The secondary bases obtained according to the invention form water-soluble salts with inorganic or organic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, methanesulfonic acid, ethane disulfonic acid, acetic acid, citric acid, malic acid, succinic acid, fumaric acid, maleic acid, tartaric acid, benzoic acid and phthalic acid.



  In the example below, parts mean parts by weight; these are related to parts of volume as g to cm3. The temperatures are given in degrees Celsius.



  <I> Example </I> 8.5 parts of 5- (a-N-benzyl-N-methylaminomethyl-ethyl) -iminodibenzyl, 190 parts of dioxane, 10 parts of water and 10 parts of Raney nickel are heated at 80 and 30 atmospheres for 2 hours. Pressure hydrogenated. The reaction solution freed from the catalyst is evaporated. The residue contains the sought 5- (a-methylaminomethyl-ethyl) -iminodibenzyl, which after conversion of the crude bases into the hydrochloride by fractional crystallization of the salt mixture, eg.

   B. from methanol ether, is isolated as a hydrochloride of melting point 226.



  In an analogous manner, 5- (a-N-benzyl-N-cyclopentylamino-isobutyl) -iminodibenzyl is obtained 5- (a-cyclopentylamino-isobutyl) -iminodibenzyl.



  The 5 - (a - methylaminomethyl - ethyl) - iminodibenzyl can also be separated off in the form of the associated acetamide by treating the crude bases according to Schotten-Baumann with acetyl chloride and the neutral components formed in a benzene solution over 60-100 parts Aluminum oxide filtered, the benzene filtrates evaporated and the residue crystallized from ether-petroleum ether:

          5- (a-N-methyl-acetamidomethyl-ethyl) -iminodibenzyl of m.p. 84-85.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von neuen N-hetero- cyclischen Verbindungen der Formel EMI0002.0040 worin X die Äthylen- oder Vinylengruppe, Y Wasser stoff, ein Halogenatom oder einen niedermolekularen Alkylrest, Z Wasserstoff, ein Halogenatom oder einen niedermolekularen Alkylrest, alkylen einen geradkettigen oder verzweigten Alkylenrest mit 2-6 Kohlenstoffatomen und R einen niedermolekularen Al kyl- oder Alkenylrest oder einen Cycloalkylrest be deuten, PATENT CLAIM Process for the preparation of new N-heterocyclic compounds of the formula EMI0002.0040 wherein X is the ethylene or vinylene group, Y is hydrogen, a halogen atom or a low molecular weight alkyl group, Z is hydrogen, a halogen atom or a low molecular weight alkyl group, alkylene is a straight-chain or branched alkylene group with 2-6 carbon atoms and R is a low molecular weight alkyl or alkenyl group or mean a cycloalkyl radical, dadurch gekennzeichnet, dass man eine Ver bindung der Formel EMI0002.0051 worin Ar einen Arylmethylrest bedeutet, hydro- genolysiert. characterized in that there is a compound of the formula EMI0002.0051 where Ar is an arylmethyl radical, hydrogenolysed.
CH1438063A 1959-09-04 1959-09-04 Process for the preparation of N-heterocyclic compounds CH375723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1438063A CH375723A (en) 1959-09-04 1959-09-04 Process for the preparation of N-heterocyclic compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1438063A CH375723A (en) 1959-09-04 1959-09-04 Process for the preparation of N-heterocyclic compounds

Publications (1)

Publication Number Publication Date
CH375723A true CH375723A (en) 1964-03-15

Family

ID=4400319

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1438063A CH375723A (en) 1959-09-04 1959-09-04 Process for the preparation of N-heterocyclic compounds

Country Status (1)

Country Link
CH (1) CH375723A (en)

Similar Documents

Publication Publication Date Title
CH375723A (en) Process for the preparation of N-heterocyclic compounds
AT228218B (en) Process for the preparation of new thioxanthene compounds
AT208870B (en) Process for the production of new N-substituted azepines or dihydroazepines
CH377351A (en) Process for the preparation of aromatic dicarboxylic acid imides
AT227690B (en) Process for the production of new, basic substituted succinimides
AT217034B (en) Process for the preparation of new substituted heterocyclic acid hydrazides
AT227713B (en) Process for the preparation of new 1,5-diazacyclooctane derivatives
DE1445872C (en) 5 phenyl 1,2 dihydro 3H 1,4 benzodi azepinone (2) derivatives
AT250338B (en) Process for the preparation of new, basic derivatives of substituted benzofuran-2-carboxylic acids and their salts
AT258298B (en) Process for the preparation of new derivatives of 5,6-dihydromorphantridine
DE1470428C (en) 5- (beta-dimethylaminoethyl) -5,6dihydro-6-oxomorphanthridines
AT370406B (en) METHOD FOR PRODUCING NEW ALLYLAMINE DERIVATIVES AND THEIR ACID ADDITION SALTS
AT220623B (en) Process for the preparation of new N-heterocyclic compounds
CH464924A (en) Process for the preparation of new pyrrolidine derivatives
Garbrecht et al. N-(β-Chloroethyl)-2, 3-dihydro-1-benz [de] isoquinoline Hydrochloride
DE1018869B (en) Process for the preparation of aminoalkyl purine derivatives
AT235280B (en) Process for the production of new indole derivatives
AT235293B (en) Process for the preparation of new piperidine derivatives
AT213871B (en) Process for the preparation of new 2-phenoxy-2-phenylethylamine compounds and their acid addition salts
CH615422A5 (en)
AT270657B (en) Process for the preparation of new halogen-substituted tetrahydroquinazolines and their acid addition salts
AT225697B (en) Process for the preparation of new propenylamines and their acid addition salts
AT333746B (en) PROCESS FOR THE PRODUCTION OF NEW ISOINDOLINE DERIVATIVES AND THEIR SALT
CH677924A5 (en)
AT203500B (en) Process for the preparation of new nicotinic acid hydrazide derivatives