CH311595A - Process for making a new salt. - Google Patents

Process for making a new salt.

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Publication number
CH311595A
CH311595A CH311595DA CH311595A CH 311595 A CH311595 A CH 311595A CH 311595D A CH311595D A CH 311595DA CH 311595 A CH311595 A CH 311595A
Authority
CH
Switzerland
Prior art keywords
sep
acid
anilide
methyl
making
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Cilag
Original Assignee
Cilag 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 Cilag Ag filed Critical Cilag Ag
Publication of CH311595A publication Critical patent/CH311595A/en

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Description

  

  Verfahren zur Herstellung eines neuen Salzes.    Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines neuen  Salzes,     welches    dadurch gekennzeichnet ist,  dass man     N-Pyrrolidinoessigsäure-(2-elilor-6-          methyl-anilid    mit     Methansulfonsäure    zur Re  aktion     bringt.    Man kann die Umsetzung in  einem Lösungsmittel, wie z. B. Alkohol, Äther,  Benzol,     Dioxan,    Wasser,     Wasser-Alkohol-          gemischen,    vornehmen.  



  .Hin     kann    zur Ausführung des     erfindungs-          gemässen    Verfahrens auch so vorgehen,     dass     man ein solches Salz des     N-Pyrrolidino-essig-          säui-e-(2-ehlor-6-metliyl-aniiicles)    mit einem  solchen Salz der     1Iethansulfonsäure    zusam  menbringt, aus welchen sich durch Umset  zung     intermecliär    das freie     N-Pyrrolidino-          essi@,:säure-(2-chlor-6-methyl-anilid)    und die  freie     Methansulfonsäure    bilden.

   Das     Reak-          i-ionsprodukt    besteht in diesem Falle aus zwei  Salzen; je nach der Löslichkeit und     Kristal-          lisationstendenz        derselben    tritt das N-Pyrro       lidinoessi-säure-(2-chlor-6-methyl-aniii(I)-me-          thansulfonat    als erstes oder als     zweites        Kri-          st.allisat.    auf.  



  Das so     erhaltene        N-Pyrrolidinoessigsäure-          (2-elilor-6-methyl-anilid)-methansulfonat    bil  det farblose Kristalle, die bei     146-148,5        schmelzen. Das neue Salz soll als Lokal  anästhetikum verwendet     werden.     



  <I>Beispiel:</I>  <B>a</B> 32 g     N-Pyrrolidino-essigsäure-(2-chlor-6-          methyl-anilid)    in 150     cm3    Aceton werden mit  einer Lösung von 13 g     11Tethansulfonsäure        in     einem     Alkohol-Acetongemisch    versetzt. Auf  Zusatz von     Äther/Petroläther    tritt Kristalli  sation ein. Nach einiger Geit werden die ge  bildeten Kristalle abgesaugt, mit Äther ge  waschen und dann getrocknet.

   Man erhält  31 g des bei     1.16-1.18,5     schmelzenden     N-          Py        rrolidinoessi < ,.5äui-e    -     (2-ehlor-    6     -metliyl        -ani-          lid)        -methansulfonats.  



  Process for making a new salt. The subject of the present patent is a process for the preparation of a new salt, which is characterized in that N-pyrrolidinoacetic acid- (2-elilor-6-methyl-anilide is reacted with methanesulfonic acid. The reaction can be carried out in a solvent such as e.g. alcohol, ether, benzene, dioxane, water, water-alcohol mixtures.



  To carry out the process according to the invention, it is also possible to proceed in such a way that such a salt of N-pyrrolidino-acetic acid (2-chloro-6-methyl-aniiicles) is brought together with such a salt of ethanesulfonic acid, from which the free N-pyrrolidino-essi @,: acid- (2-chloro-6-methyl-anilide) and the free methanesulfonic acid are formed intermecially through conversion.

   The reaction product in this case consists of two salts; Depending on the solubility and crystallization tendency of the same, N-pyrrolidinoessi-acid- (2-chloro-6-methyl-aniii (I) -methanesulfonate appears as the first or as the second crystallizate.



  The N-pyrrolidinoacetic acid (2-elilor-6-methyl-anilide) methanesulfonate thus obtained forms colorless crystals which melt at 146-148.5. The new salt is intended to be used as a local anesthetic.



  <I> Example: </I> <B> a </B> 32 g of N-pyrrolidino-acetic acid (2-chloro-6-methyl-anilide) in 150 cm3 of acetone are mixed with a solution of 13 g of 11-thanesulfonic acid in a Alcohol-acetone mixture added. Crystallization occurs on addition of ether / petroleum ether. After a while, the crystals formed are suctioned off, washed with ether and then dried.

   31 g of N-pyrrolidinoessi <, .5äui-e - (2-chloro-6-methyl-anilide) -methanesulfonate are obtained, melting at 1.16-1.18.5.

 

Claims (1)

EMI0001.0051 PATENTANSPRUCH <tb> Verfahren <SEP> zur <SEP> Herstellung <SEP> eines <SEP> neuen <tb> Salzes, <SEP> dadurch <SEP> gekennzeichnet, <SEP> dass <SEP> man <SEP> N I'3-rrolidinoessi.!zsäure-(2-ehlor-6-meth\#1-anilid) <SEP> . <tb> mit <SEP> hTetliansulfonsäure <SEP> zur <SEP> Reaktion <SEP> bringt. <tb> Das <SEP> resultierende <SEP> N-PyrrolidinoessigsäLire (2-elilor-6-metliyl-anilid)-metliansulfonat <SEP> bil det <SEP> farblose, <SEP> bei <SEP> 146-148,5 <SEP> schmelzende <SEP> Kri stalle; <SEP> es <SEP> soll <SEP> als <SEP> Lokalanästhetikum <SEP> verwendet <SEP> ; <tb> werden. EMI0001.0051 PATENT CLAIM <tb> Procedure <SEP> for <SEP> production <SEP> of a <SEP> new one <tb> salt, <SEP> characterized by <SEP>, <SEP> that <SEP> man <SEP> N I'3-rrolidinoessi.! zäur- (2-chloro-6-meth \ # 1-anilide) < SEP>. <tb> with <SEP> causes tetliansulfonic acid <SEP> to <SEP> reaction <SEP>. <tb> The <SEP> resulting <SEP> N-pyrrolidinoacetic acid (2-elilor-6-methyl-anilide) -metliansulfonat <SEP> forms <SEP> colorless, <SEP> with <SEP> 146-148.5 < SEP> melting <SEP> crystals; <SEP> it <SEP> should <SEP> used as <SEP> local anesthetic <SEP> <SEP>; <tb> be.
CH311595D 1952-02-25 1952-02-25 Process for making a new salt. CH311595A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH311595T 1952-02-25
CH306793T 1955-04-30

Publications (1)

Publication Number Publication Date
CH311595A true CH311595A (en) 1955-11-30

Family

ID=25735213

Family Applications (1)

Application Number Title Priority Date Filing Date
CH311595D CH311595A (en) 1952-02-25 1952-02-25 Process for making a new salt.

Country Status (1)

Country Link
CH (1) CH311595A (en)

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