CH311640A - 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
- CH311640A CH311640A CH311640DA CH311640A CH 311640 A CH311640 A CH 311640A CH 311640D A CH311640D A CH 311640DA CH 311640 A CH311640 A CH 311640A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- anilide
- methyl
- fatty acid
- halogen
- Prior art date
Links
Description
Verfahren zur Herstellung eines neuen basisch substituierten Fettsäure. (2-halogen-6-methyl-anilids). CTeg-enstand 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
EMI0001.0007
in welcher X einen reaktionsfähigen, während der Reaktion sich abspaltenden Rest bedeutet, mit Pyrrolidin umsetzt.
Der Rest K kann in einem Halogenatom oder einem sonstigen für den Austausch gegen den basischen Rest geeigneten reaktionsfähi- @,en @ubstittienten, wie z. B. einer Alkylstil- forryioxy- oder Arylsulfonyloxygruppe, beste hen. Der Austausch der Gruppe X gegen den Pvrrolidinrest erfolgt. z.
B. durch einfaches Erwärmen mit Pyrrolidin gegebenenfalls in (-?egerrwart eines basisch reagierenden Konden sationsmittels oder von Pyrrolidin im Über sehuss. Das a-N-Pyrrolidino-valeriansäure-(2- elilor-6-niethyl-anilid) ist ein säurelösliches Öl, das nach einiger Zeit zu farblosen, bei 100 schmelzenden Kristallen erstarrt. Das Hydro chlorid der Base schmilzt bei 204-205 .
Das neue Anilid soll als Lokalanästhetikum und als Zwischenprodukt. zur Herstellmig weiterer Derivate Verwendung" finden. Beispiel:
33 Gewichtsteile a-Brom-valeriansäure-(2- chlor-6-methyl-anilid) (gewonnen durch Um setzen von 2-Clrlor-6-methyl-anilin mit a- Broni-valeriansäturebromid in Gegenwart von Natriumacetat, Sclunp. 155 ) werden in 100 Gewichtsteilen Äthanol suspendiert und mit 25 Gewichtsteilen Pvrrolidin versetzt. Die Temperatur steigt dabei leicht an, und ein grosser Teil des Reaktionsgemisches geht in Lösung. Nun wird während 4 Stunden bei Zimmertemperatur gerührt und dann einige Stunden bei 65-75 .
Nach dem Abkühlen wird das Ganze auf Nasser gegossen, die wäss- rige Lösung mit Natriumehlorid gesättigt und dann mit. Äther extrahiert. Nach dem Trock nen 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-v aleriansäure-(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 matter of the present patent forms 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
EMI0001.0007
in which X is a reactive radical which is split off during the reaction, reacts with pyrrolidine.
The radical K can be in a halogen atom or another reactive substance suitable for replacement with the basic radical, such as e.g. B. an alkylstyle forryioxy or arylsulfonyloxy group, best hen. Group X is exchanged for the pvrrolidine residue. z.
B. by simply heating with pyrrolidine if necessary in (-? Egerwart a basic reacting condensation agent or pyrrolidine in excess. The aN-pyrrolidino-valeric acid- (2-elilor-6-niethyl-anilide) is an acid-soluble oil, which after Solidified for some time to colorless crystals melting at 100. The hydrochloride of the base melts at 204-205.
The new anilide is said to be used as a local anesthetic and as an intermediate. for the manufacture of further derivatives use ". Example:
33 parts by weight of a-bromo-valeric acid (2-chloro-6-methyl-anilide) (obtained by converting 2-chloro-6-methyl-aniline with a-bromo-valeric acid bromide in the presence of sodium acetate, Sclunp. 155) suspended in 100 parts by weight of ethanol and mixed with 25 parts by weight of pvrrolidine. The temperature rises slightly and a large part of the reaction mixture goes into solution. The mixture is then stirred for 4 hours at room temperature and then for a few hours at 65-75.
After cooling, the whole thing is poured onto Nasser, the aqueous solution is saturated with sodium chloride and then with. Ether extracted. After the essential solution has dried and the solvent has been driven off, an oil remains which is purified by converting it into the hydrochloride. 32 parts by weight of pure α-N-pyrrolidino-v aleric acid (2-chloro-6-methyl anilide) are obtained. The reaction with pyrrolidine can also take place in benzene.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH311640T | 1952-02-25 | ||
CH307799T | 1952-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH311640A true CH311640A (en) | 1955-11-30 |
Family
ID=25735373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH311640D CH311640A (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) | CH311640A (en) |
-
1952
- 1952-02-25 CH CH311640D patent/CH311640A/en unknown
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). | |
CH311614A (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). | |
CH311613A (en) | Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide). | |
CH311611A (en) | Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide). | |
CH311606A (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). | |
CH311640A (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). | |
CH311622A (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). | |
CH311641A (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). | |
CH311616A (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). | |
CH311644A (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). | |
CH311630A (en) | Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide). | |
CH311638A (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). | |
DE1911893A1 (en) | N-(halo-aryl)-2-methyl-5-alkoxy-indole-3-aceticacids with a - acetic acids with antiphlogistic activity | |
CH311626A (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). | |
CH311632A (en) | Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide). |