CH259660A - Process for the preparation of a biguanide derivative. - Google Patents

Process for the preparation of a biguanide derivative.

Info

Publication number
CH259660A
CH259660A CH259660DA CH259660A CH 259660 A CH259660 A CH 259660A CH 259660D A CH259660D A CH 259660DA CH 259660 A CH259660 A CH 259660A
Authority
CH
Switzerland
Prior art keywords
preparation
propylbiguanide
biguanide derivative
water
diiodophenyl
Prior art date
Application number
Other languages
German (de)
Inventor
Limited Imperial Ch Industries
Original Assignee
Ici Ltd
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 Ici Ltd filed Critical Ici Ltd
Publication of CH259660A publication Critical patent/CH259660A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C279/00Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
    • C07C279/20Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups containing any of the groups, X being a hetero atom, Y being any atom, e.g. acylguanidines
    • C07C279/24Y being a hetero atom
    • C07C279/26X and Y being nitrogen atoms, i.e. biguanides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     Biguanidderivates.       Die vorliegende Erfindung betrifft ein  Verfahren zur Herstellung von     N'-3,4-Dijod-          plienyl-N--,-n-propylbiguanid,    welches ein wert  volles chemotherapeutisches Mittel ist oder  als Zwischenprodukt für die Herstellung von  chemotherapeutischen     Mitteln    verwendet wer  den kann. Es ist insbesondere ein wertvolles       Antimalariamittel.     



  Erfindungsgemäss wird die besagte neue  Verbindung, nämlich     N'-3,4-Dijodplienyl-N-          ii-propylbiguanid,    dadurch erhalten, dass man       N'-n-Propyldieyandiamid    mit     3,4-Dijodanilin     umsetzt.  



  Die Umsetzung erfolgt zweckmässig durch  Erhitzen eines Salzes des Amins mit dein  substituierten     Dieyandiamid    in Gegenwart  eines Lösungsmittels, wie z. B. Wasser oder       ss-'@tlioxyäthanol.     



  Das     N'-3,4-Dijodphenyl-NS-n-propylbi-          guanid    stellt eine starke Base dar, welche mit  organischen und anorganischen Säuren be  ständige Salze ergibt, die in manchen Fällen  in Wasser leicht löslich sind. Die Salze lassen  sich dadurch herstellen, dass die Base in       wässrigen    Lösungen der Säure gelöst und  hierauf das Wasser verdampft wird, doch  können sie in trockener Form bequemer durch  Vermischen der Komponenten in einem orga  nischen Lösungsmittel, wie z. B. Aceton, oder  in einem Alkohol, in welchem die Salze spär  lich     löslieli    sind, hergestellt werden.

   Auf diese  Weise kann man beispielsweise die Salze mit    Essigsäure, Milchsäure,     Methansulfonsäure,          Methylendisalicylsäure,        Methylen-bis-ss-oxy-          naphthoesäure    und Salzsäure bequem her  stellen.  



  Das folgende Beispiel diene zur Erläute  rung der     Erfindung.     



  <I>Beispiel:</I>  Ein Gemisch von 12,6 Teilen     N--n-Propyl-          dicyandiamid    und 38,2 Teilen     3,4-Dijod-          anilin-ehlorhydrat    in<B>250</B> Teilen Wasser wird  während 3 Stunden unter     Rüekfluss    zum  Sieden erhitzt. Hierauf lässt man das Gemisch  abkühlen, worauf     abfiltriert    wird. Der feste  Rückstand wird mit kaltem Wasser gewaschen  und aus Wasser umkristallisiert. Auf diese  Weise erhält man     N1-3,4-Dijodphenyl-N'-n-          propylbiguanid    in Form seines     Monohydro-          ehlorids,    welches bei 226-227  C schmilzt.



  Process for the preparation of a biguanide derivative. The present invention relates to a process for the preparation of N'-3,4-diiodoplienyl-N -, - n-propylbiguanide, which is a valuable chemotherapeutic agent or can be used as an intermediate for the preparation of chemotherapeutic agents. It is a particularly valuable antimalarial drug.



  According to the invention, the said new compound, namely N'-3,4-diiodoplienyl-N-ii-propylbiguanide, is obtained by reacting N'-n-propyldiyandiamide with 3,4-diiodaniline.



  The reaction is conveniently carried out by heating a salt of the amine with your substituted dieyandiamide in the presence of a solvent, such as. B. water or ss - '@ tlioxyäthanol.



  The N'-3,4-diiodophenyl-NS-n-propylbiguanide is a strong base which, with organic and inorganic acids, results in stable salts which in some cases are easily soluble in water. The salts can be prepared in that the base is dissolved in aqueous solutions of the acid and then the water is evaporated, but they can be more convenient in dry form by mixing the components in an orga African solvent, such as. B. acetone, or in an alcohol in which the salts are sparse Lichlöslieli are prepared.

   In this way, for example, the salts with acetic acid, lactic acid, methanesulfonic acid, methylenedisalicylic acid, methylene-bis-β-oxynaphthoic acid and hydrochloric acid can be conveniently prepared.



  The following example serves to explain the invention.



  <I> Example: </I> A mixture of 12.6 parts of N-n-propyl dicyandiamide and 38.2 parts of 3,4-diiodoaniline chlorohydrate in 250 parts of water is used heated to boiling for 3 hours under reflux. The mixture is then allowed to cool and it is filtered off. The solid residue is washed with cold water and recrystallized from water. In this way, N1-3,4-diiodophenyl-N'-n-propylbiguanide is obtained in the form of its monohydrochloride, which melts at 226-227 ° C.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von N'-3,4-Di- jodphenyl-N--n-propylbiguanid, dadurch ge kennzeichnet, dass man N3-n-Propy ldiey an- diamid mit 3,4-Dijodanilin umsetzt. Das N'-3,4-Dijodphenyl-N;,-n-propylbi- guanid ist eine starke Base, deren lZono- hydrochlorid bei 226-227 C schmilzt. Die neue Base besitzt kräftige Antimalariaeigen- schaften. PATENT CLAIM: Process for the production of N'-3,4-diiodophenyl-N-n-propylbiguanide, characterized in that N3-n-propy ldiey diamide is reacted with 3,4-diiodoaniline. The N'-3,4-diiodophenyl-N;, - n-propylbiguanide is a strong base, the l-zono hydrochloride of which melts at 226-227 C. The new base has powerful antimalarial properties.
CH259660D 1945-10-08 1946-10-08 Process for the preparation of a biguanide derivative. CH259660A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB259660X 1945-10-08
GB170946X 1946-09-17
CH254800T 1946-10-08

Publications (1)

Publication Number Publication Date
CH259660A true CH259660A (en) 1949-01-31

Family

ID=27178016

Family Applications (1)

Application Number Title Priority Date Filing Date
CH259660D CH259660A (en) 1945-10-08 1946-10-08 Process for the preparation of a biguanide derivative.

Country Status (1)

Country Link
CH (1) CH259660A (en)

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