CH279110A - Process for preparing a new salt of salicylic acid. - Google Patents

Process for preparing a new salt of salicylic acid.

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Publication number
CH279110A
CH279110A CH279110DA CH279110A CH 279110 A CH279110 A CH 279110A CH 279110D A CH279110D A CH 279110DA CH 279110 A CH279110 A CH 279110A
Authority
CH
Switzerland
Prior art keywords
salt
salicylate
morpholine
salicylic acid
solution
Prior art date
Application number
Other languages
French (fr)
Inventor
Limitee Egema S Responsabilite
Original Assignee
Egema Societe A Responsabilite
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 Egema Societe A Responsabilite filed Critical Egema Societe A Responsabilite
Publication of CH279110A publication Critical patent/CH279110A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D295/00Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/02Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
    • C07D295/027Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring

Description

  

  Procédé de préparation d'un nouveau sel de l'acide salicylique.         La,    présente invention, due à 12. J.     Ledrut,     a pour objet un procédé de préparation d'un  nouveau sel de l'acide salicylique, à savoir le  salicylate de     morpholine.     



  Suivant l'invention, on fait agir un sel  (le l'acide salicylique sur une quantité     équi-          moléculaire    d'un sel de     morpholine    en solu  tion, de manière à former, par double décom  position, du     salicylate    de     morpholine.     



  Il est avantageux d'employer un sel de  l'acide salicylique tel qu'il donne lieu, en       présence    .du sel de     morpholine,    à la forma  tion de salicylate de     morpholine    et d'un sel  insoluble, que l'on sépare du salicylate soluble  formé.  



  Le salicylate de     morpholine    pur se pré  sente     sous    forme de cristaux     blancs    fondant à  110-111  C. Il est très soluble dans l'eau,       l'alcool    éthylique, l'acétate d'éthyle, peu solu  ble dans le benzène et très peu soluble dans  l'éther     isopropylique    et l'éther sulfurique.  



  Comparé au salicylate de sodium, le sali  cylate de     morpholine    est avantageux comme    médicament appliqué notamment dans     les     affections rhumatismales, en ce     sens    qu'il  s'élimine beaucoup     phis    lentement que le sa  licylate de sodium.  



  De plus, alors que     le    salicylate de sodium  ne peut être administré par voie intra  musculaire, mais doit,     ait    contraire, être  administré par voie intraveineuse, le salicy  late -de     morpholine    s'administre aisément par  voie intramusculaire.  



  Les exemples suivants se réfèrent à quel  ques modes de réalisation préférés de l'inven  tion.  



  <I>Exemple I:</I>  On     dissout    123,5 parties en poids de  chlorhydrate de     morpholine        dans    de l'eau. A  cette solution on ajoute 245 parties de sali  cylate d'argent. Le précipité de chlorure d'ar  gent formé est séparé par filtration. Le fil  trat contient .le salicylate de     morpholine.     



  La réaction entre le chlorhydrate de     mor-          pholine    et le salicylate d'argent peut se  schématiser     comme        suit       OH  j     /CHa--CH$@          COOAg        -f-        HCI,    NH 0  <B>0</B>     0\Cg2__CHZ/     OH       CHz-CH2\          COOH    .     HN    0     -1-        Agei          \CHZ-CHZ'         <I>Exemple II:

  </I>  On fait réagir du sulfate de     morpholine     dissous dans de l'eau sur une quantité équi  moléculaire de salicylate de baryum. Après  élimination du précipité de sulfate d     ,e    baryum  formé par double décomposition des réactifs  de départ, on obtient une solution de salicy  late de     morpholine.       <I>Exemple III:</I>  On opère     comme    dans l'exemple I. Puis  on extrait, de la solution aqueuse le salicylate  de     morpholine    au moyen de chloroforme.  



  La solution     chloroformique    obtenue est. sé  chée sur sulfate de sodium.  



  Après filtration du sulfate (le sodium, on  chasse le solvant sous     vide    et on     recristallise     le salicylate de     morpholine    obtenu dans un  mélange d'une partie d'alcool éthylique dans  10 parties de tétrachlorure de carbone.  



  Après     essorage,    lavage à l'aide du mélange  d'alcool et de tétrachlorure de carbone spéci  fié ci-avant, et séchage, on obtient du     saliey-          late    de     morpholine    fondant à 110--111  C.



  Process for preparing a new salt of salicylic acid. The present invention, due to 12. J. Ledrut, relates to a process for preparing a new salt of salicylic acid, namely morpholine salicylate.



  According to the invention, a salt (salicylic acid is made to act on an equimolecular quantity of a morpholine salt in solution, so as to form, by double decomposition, morpholine salicylate.



  It is advantageous to use a salt of salicylic acid such that, in the presence of the morpholine salt, it gives rise to the formation of morpholine salicylate and of an insoluble salt, which is separated from the salicylate. soluble formed.



  Pure morpholine salicylate occurs as white crystals melting at 110-111 C. It is very soluble in water, ethyl alcohol, ethyl acetate, poorly soluble in benzene and very poorly. soluble in isopropyl ether and sulfuric ether.



  Compared with sodium salicylate, morpholine salicylate is advantageous as a medicament applied in particular in rheumatic diseases, in that it is eliminated much more slowly than sodium licylate.



  In addition, while sodium salicylate cannot be administered intramuscularly, but must instead be administered intravenously, morpholine salicy late is readily administered intramuscularly.



  The following examples refer to some preferred embodiments of the invention.



  <I> Example I: </I> 123.5 parts by weight of morpholine hydrochloride are dissolved in water. To this solution is added 245 parts of silver salt. The silver chloride precipitate formed is separated by filtration. The trat yarn contains morpholine salicylate.



  The reaction between morpholine hydrochloride and silver salicylate can be schematized as follows OH j / CHa - CH $ @ COOAg -f- HCI, NH 0 <B> 0 </B> 0 \ Cg2__CHZ / OH CHz-CH2 \ COOH. HN 0 -1- Agei \ CHZ-CHZ '<I> Example II:

  </I> Morpholine sulfate dissolved in water is reacted with an equi molecular amount of barium salicylate. After removal of the precipitate of barium sulfate formed by double decomposition of the starting reagents, a solution of morpholine salicy late is obtained. <I> Example III: </I> The procedure is as in Example I. Then the morpholine salicylate is extracted from the aqueous solution by means of chloroform.



  The chloroform solution obtained is. dried over sodium sulfate.



  After filtration of the sulfate (the sodium, the solvent is removed in vacuo and the morpholine salicylate obtained is recrystallized from a mixture of one part of ethyl alcohol in 10 parts of carbon tetrachloride.



  After spinning, washing with the mixture of alcohol and carbon tetrachloride specified above, and drying, morpholine salieylate is obtained, melting at 110--111 C.

 

Claims (1)

REVENDICATION.: Procédé de préparation d'un nouveau sel de l'acide salicylique, caractérisé en ee qu'on lait agir un sel de l'acide salicylique sur une quantité équimoléculaire <U>d un</U> sel de la mor- pholine en solution, de manière à former, par double décomposition, du salicylate de mor- pholine. Ce dernier se présente sous forme d'un solide blanc. fondant à 110-11.l C. SOUS-REVENDICATIONS 1. CLAIM: Process for the preparation of a new salt of salicylic acid, characterized in that a salt of salicylic acid acts on an equimolecular amount <U> of a </U> salt of mor- pholine in solution, so as to form, by double decomposition, morpholine salicylate. The latter is in the form of a white solid. melting at 110-11.1 C. SUBCLAIMS 1. Procédé suivant la revendication, ca ractérisé en ce qu'on emploie un sel de l'acide salicylique tel qu'il donne lieu, en présence du sel de morpholine, à la formation de sali cylate de morpholine et d'un sel insoluble, et en ce qu'on sépare ce sel insoluble du salicy late formé en même temps que lui. '?. Procédé suivant. la revendication et la. A process as claimed in claim, characterized in that a salt of salicylic acid is employed such as to give rise, in the presence of the morpholine salt, to the formation of morpholine salt and an insoluble salt, and in that this insoluble salt is separated from the salicy late formed at the same time as it. '?. Next process. the claim and the. sous-revendication 1, dans lequel on opère en solution aqueuse, caractérisé en ce qu'on extrait le salicylate formé par double décom position au moyen d'un solvant organique non miscible à l'eau, en ce qu'on sépare en suite la solution organique de salicylate de la phase aqueuse et en ce qu'on provoque enfin la. cristallisation dudit salicylate. sub-claim 1, wherein the operation is carried out in aqueous solution, characterized in that the salicylate formed is extracted by double decomposition by means of an organic solvent immiscible with water, in that the subsequent separation of the organic salicylate solution of the aqueous phase and in that the. crystallization of said salicylate.
CH279110D 1946-11-13 1947-12-09 Process for preparing a new salt of salicylic acid. CH279110A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE279110X 1946-11-13
BE200347X 1947-03-20

Publications (1)

Publication Number Publication Date
CH279110A true CH279110A (en) 1951-11-15

Family

ID=25661547

Family Applications (1)

Application Number Title Priority Date Filing Date
CH279110D CH279110A (en) 1946-11-13 1947-12-09 Process for preparing a new salt of salicylic acid.

Country Status (1)

Country Link
CH (1) CH279110A (en)

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