CH311643A - Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide). - Google Patents

Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).

Info

Publication number
CH311643A
CH311643A CH311643DA CH311643A CH 311643 A CH311643 A CH 311643A CH 311643D A CH311643D A CH 311643DA CH 311643 A CH311643 A CH 311643A
Authority
CH
Switzerland
Prior art keywords
anilide
methyl
production
fatty acid
halogen
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 CH311643A publication Critical patent/CH311643A/en

Links

Description

  

  Verfahren zur Herstellung eines neuen basisch substituierten Fettsäure.       (2-halogen-6-methyl-anilids).       Gegenstand des vorliegenden Patentes bil  det ein Verfahren zur Herstellung eines neuen  basisch substituierten     Fettsäure-(2-halogen-6-          methyl-anilids),    welches dadurch gekennzeich  net ist, dass man eine Verbindung der Formel  
EMI0001.0004     
    in     welcher    X einen reaktionsfähigen, während  der Reaktion sich abspaltenden Rest     bedeu-          det,    mit     Py        rrolidin    umsetzt.  



  Der Rest X kann in einem Halogenatom  oder einem sonstigen für den Austausch gegen  den basischen Rest geeigneten reaktionsfähigen       Substituenten,    wie z. B. einer     Alkylsulfonyl-          oxy-    oder     Arylsulfonyloxygruppe    bestehen.  Der Austausch der Gruppe X gegen den     Pyr-          rolidinrest    erfolgt z. B. durch einfaches     Er-          wär-men    mit     Pyrrolidin    gegebenenfalls in Ge  genwart eines basisch reagierenden Konden  sationsmittels oder von     Pyrrolidin    im Über  schuss.

   Das     a-N-Pyrrolidino-capronsäure-(2-          ehlor-6-methyl-anilid)    ist ein säurelösliches Öl,  das nach einiger Zeit zu farblosen, bei 55   schmelzenden Kristallen erstarrt. Das     Hydro-          chlorid    der Base schmilzt\ bei 198-200 .  



  Das neue     Anilid    soll als Lokalanästhetikum  und als Zwischenprodukt zur Herstellung wei  terer Derivate Verwendung finden.    <I>Beispiel:</I>  33 Gewichtsteile     a-Brom        -capronsäure-        (2-          chlor-6-methyl-anilid)    (gewonnen durch Um  setzen von     2-Chlor-6-methyl-anilin    mit     a-Brom-          capronsäurebromid    in Gegenwart von Na  triumacetat,     Schmp.    132 ) werden in 100 Ge  wichtsteilen Äthanol suspendiert und mit  25     Gewichtsteilen        Pyrrolidin    versetzt.

   Die,  Temperatur     steigt    dabei leicht an, und ein  grosser Teil des Reaktionsgemisches geht in Lö  sung. Nun wird während 4 Stunden bei Zim  mertemperatur gerührt und dann einige Stun  den bei 65-70 . Das Ganze wird auf Wasser ,  gegossen, die     wässrige    Lösung mit Kochsalz ge  sättigt und dann mit Äther extrahiert. Nach  dem Trocknen der ätherischen Lösung und  Verjagen des Lösungsmittels verbleibt ein Öl,  das durch Überführen in das Hydrochlorid       gereinigt    wird. Man erhält 32 Gewichtsteile  reines     a-N-Pyrrolidino-capronsäure-(2-chlor-6-          methyl-anilid).    Die Umsetzung mit     Pyrrolidin     kann auch in Benzol stattfinden.



  Process for the production of a new basic substituted fatty acid. (2-halo-6-methyl-anilide). The subject of the present patent bil det a process for the preparation of a new basic substituted fatty acid (2-halo-6-methyl-anilide), which is characterized in that a compound of the formula
EMI0001.0004
    in which X signifies a reactive radical which is split off during the reaction, reacts with pyrrolidine.



  The radical X can be in a halogen atom or any other reactive substituent suitable for replacement with the basic radical, such as. B. an alkylsulfonyl oxy or arylsulfonyloxy group. The exchange of group X against the pyrrolidine radical takes place z. B. by simply heating with pyrrolidine, possibly in the presence of a basic condensing agent or an excess of pyrrolidine.

   The a-N-pyrrolidino-caproic acid- (2-chloro-6-methyl-anilide) is an acid-soluble oil that solidifies after some time to colorless crystals that melt at 55. The hydrochloride of the base melts at 198-200.



  The new anilide is to be used as a local anesthetic and as an intermediate for the production of further derivatives. <I> Example: </I> 33 parts by weight of a-bromo-caproic acid- (2-chloro-6-methyl-anilide) (obtained by reacting 2-chloro-6-methyl-aniline with a-bromocaproic acid bromide in Presence of sodium acetate, melting point 132) are suspended in 100 parts by weight of ethanol and treated with 25 parts by weight of pyrrolidine.

   The temperature rises slightly, and a large part of the reaction mixture goes into solution. The mixture is then stirred at room temperature for 4 hours and then for a few hours at 65-70. The whole thing is poured onto water, the aqueous solution is saturated with common salt and then extracted with ether. After drying the essential solution and driving off the solvent, an oil remains which is purified by converting it into the hydrochloride. 32 parts by weight of pure α-N-pyrrolidino-caproic acid (2-chloro-6-methyl-anilide) are obtained. The reaction with pyrrolidine can also take place in benzene.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen basisch substituierten Fettsäure-(2-halogen-6- methyl-anilids), dadurch gekennzeichnet, dass man eine Verbindung der Formel EMI0001.0043 in welcher Y einen reaktionsfähigen, während der Reaktion sich abspaltenden Rest bedeutet, mit Pyrr olidin umsetzt. Das auf diese Weise erhaltene a--N-Pyrrolidino-capronsäure- (2- chlor-6-methyl-anilid) bildet ein säurelösliches öl, das nach einiger Zeit zu farblosen, bei 55 schmelzenden Kristallen erstarrt. Das Hydrochlorid der Base schmilzt bei 198-200 . PATENT CLAIM: Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide), characterized in that a compound of the formula EMI0001.0043 in which Y denotes a reactive radical which is split off during the reaction, reacts with pyrrolidine. The a-N-pyrrolidino-caproic acid- (2-chloro-6-methyl-anilide) obtained in this way forms an acid-soluble oil which solidifies after some time to colorless crystals which melt at 55. The base hydrochloride melts at 198-200. Das neue Anilid soll als Lokalanästhetikum und als Zwischenprodukt. Verwendung finden. >;TN TERA\ SPRL CH Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man ein a-Halogen-ca- pronsäure-(2-chlor-6-methyl-anilid) mit Pyrro- lidin reagieren lässt. The new anilide is said to be used as a local anesthetic and as an intermediate. Find use. >; TN TERA \ SPRL CH Method according to claim, characterized in that an α-halo-ca- pronic acid (2-chloro-6-methyl-anilide) is allowed to react with pyrrolidine.
CH311643D 1952-02-25 1952-02-25 Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide). CH311643A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH311643T 1952-02-25
CH307799T 1952-11-25

Publications (1)

Publication Number Publication Date
CH311643A true CH311643A (en) 1955-11-30

Family

ID=25735376

Family Applications (1)

Application Number Title Priority Date Filing Date
CH311643D CH311643A (en) 1952-02-25 1952-02-25 Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).

Country Status (1)

Country Link
CH (1) CH311643A (en)

Similar Documents

Publication Publication Date Title
CH311615A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311607A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311613A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311608A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311614A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311609A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311610A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311643A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311640A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311635A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311622A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311641A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311625A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311639A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311636A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311616A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311642A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311626A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
AT204041B (en) Process for the production of new phenthiazine derivatives
DE1911893A1 (en) N-(halo-aryl)-2-methyl-5-alkoxy-indole-3-aceticacids with a - acetic acids with antiphlogistic activity
CH311644A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
AT222122B (en) Process for the production of new phenthiazine derivatives
CH311630A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311617A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
CH311634A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).