CH299262A - Process for the preparation of a new disubstituted nicotinic acid amide. - Google Patents
Process for the preparation of a new disubstituted nicotinic acid amide.Info
- Publication number
- CH299262A CH299262A CH299262DA CH299262A CH 299262 A CH299262 A CH 299262A CH 299262D A CH299262D A CH 299262DA CH 299262 A CH299262 A CH 299262A
- Authority
- CH
- Switzerland
- Prior art keywords
- nicotinic acid
- ethyl
- acid amide
- preparation
- new
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/81—Amides; Imides
- C07D213/82—Amides; Imides in position 3
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrogenated Pyridines (AREA)
Description
Verfahren zur Herstellung eines neuen disubstituierten Nicotinsäureamids. Gegenstand der Erfindung ist ein Verfah ren zur Herstellung eines neuen disubstituier- ten Nicotinsäureamids der Formel
EMI0001.0010
welches dadurch gekennzeichnet ist, dass man eine das Nicotinyl-Radikal liefernde Verbin dung mit einer den Rest
EMI0001.0012
liefernden Verbindung umsetzt.
Als den Nicotinsäurerest liefernde Verbin dung seien beispielsweise erwähnt: Die Nicotinsäure selbst, ihre Ester, ihre Halogenide, ihr Azid und ihr Anhydrid bzw. ihre gemischten Anhydride, z. B. mit Phos phorsäure, Schwefelsäure usf. Als den Amin rest liefernde Verbindiuigen seien zum Bei spiel das N-(1,2-Diphenyl-äthyl)-N-(2'-piperi- dino-äthyl)-amin selbst sowie seine N-Metall- derivate erwähnt.
Die Umsetzung kann in An- oder Abwesenheit eines Lösungs- bzw. Ver dünnungsmittels und eines basischen Konden sationsmittels erfolgen. Als Kondensationsmit tel kann auch das genannte Amin selbst die nen.
Das so erhaltene Nicotinsäure-[N-(1,2-di- phenyl-ätb.yl)-N- (2'-piperidino - äthyl) ] - amid bildet ein gelbliches Öl, welches unter 0,08 mm bei 250-260 siedet und sich gut in verdünn ten Säuren, \wenig in Wasser und Petroläther löst.
Die Verbindung besitzt wertvolle spasmo- lytische Eigenschaften und soll deshalb als Arzneimittel, aber auch als Zwischenprodukt zur Herstellung weiterer Derivate Verwen dung finden.
<I>Beispiel 1:</I> 30 g N-(1,2-Diphenyl-äthyl)-N-(2'-piperi- dino-äthyl)-amin und 35 g Nicotinsäureanhy- drid werden in je 250 ems warmem Benzol gelöst, miteinander vermischt und mit 21 g geglühter Pottasche 5 Stunden gekocht.
Nach dem Erkalten wird einige Male mit verdünn ter Natronlauge durchgeschüttelt, die Benzol schicht dann mit Salzsäure ausgezogen, die Salzsäurelösung filtriert, mit Natronlauge al kalisch gemacht und das obenauf schwim mende Öl in Chloroform aufgenommen: Nach dem Verdampfen des Chloroforms wird der Rückstand im Hochvakuum destilliert. Man erhält so 32g Nicotüisäure-[N-(1,2-diphenyl- äthyl)-N-(2'-piperidino-äthyl)]-amid als gelb liches Öl, das unter 0,08 mm bei 250-260 sie det, Die neue Verbindung löst sich leicht in verdünnten Säuren, weniger gut in Wasser und Petroläther.
<I>Beispiel 2:</I> Die gleiche Verbindung erhält man in guter Reinheit und Ausbeute, wenn man Nico- tinsäure und N-(1,2-Diphenyl-äthyl)-N-(2'-pi- peridino-äthyl)-amin bei erhöhter Temperatur zusammen erhitzt und das Reaktionsgemisch analog wie in Beispiel 1 beschrieben aufarbei- tpt_
Process for the preparation of a new disubstituted nicotinic acid amide. The invention relates to a process for the preparation of a new disubstituted nicotinic acid amide of the formula
EMI0001.0010
which is characterized in that one of the nicotinyl radical supplying connection with a remainder
EMI0001.0012
the supplying connection.
As the connection supplying nicotinic acid, for example: nicotinic acid itself, its esters, its halides, its azide and its anhydride or its mixed anhydrides, e.g. B. with phosphoric acid, sulfuric acid, etc. The amine residue supplying compounds are, for example, N- (1,2-diphenylethyl) -N- (2'-piperidinoethyl) amine itself and its N -Metal- derivatives mentioned.
The reaction can take place in the presence or absence of a solvent or diluent and a basic condensation agent. The amine itself can also be used as the condensation agent.
The nicotinic acid [N- (1,2-diphenyl-ätb.yl) -N- (2'-piperidino-ethyl)] amide thus obtained forms a yellowish oil, which is below 0.08 mm at 250-260 boils and dissolves well in dilute acids, \ little in water and petroleum ether.
The compound has valuable spasmolytic properties and should therefore be used as a medicament, but also as an intermediate for the production of further derivatives.
<I> Example 1: </I> 30 g of N- (1,2-diphenyl-ethyl) -N- (2'-piperidino-ethyl) -amine and 35 g of nicotinic anhydride are heated to 250 ems each Benzene dissolved, mixed together and boiled with 21 g of calcined potash for 5 hours.
After cooling, it is shaken a few times with dilute sodium hydroxide solution, the benzene layer is then extracted with hydrochloric acid, the hydrochloric acid solution filtered, made alkaline with sodium hydroxide solution and the oil floating on top taken up in chloroform: After the chloroform has evaporated, the residue is distilled in a high vacuum . This gives 32g of nicotiic acid [N- (1,2-diphenyl-ethyl) -N- (2'-piperidino-ethyl)] amide as a yellowish oil which under 0.08 mm at 250-260 it det, The new compound dissolves easily in dilute acids, less readily in water and petroleum ether.
<I> Example 2: </I> The same compound is obtained in good purity and yield if nicotinic acid and N- (1,2-diphenyl-ethyl) -N- (2'-piperidino-ethyl) are used ) -amine is heated together at an elevated temperature and the reaction mixture is worked up analogously as described in Example 1.
Claims (1)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH299269T | 1951-03-01 | ||
CH299262T | 1951-03-01 | ||
CH296180T | 1951-03-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH299262A true CH299262A (en) | 1954-05-31 |
Family
ID=27178225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH299262D CH299262A (en) | 1951-03-01 | 1951-03-01 | Process for the preparation of a new disubstituted nicotinic acid amide. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH299262A (en) |
-
1951
- 1951-03-01 CH CH299262D patent/CH299262A/en unknown
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