CH246579A - Process for the preparation of a new imidazoline. - Google Patents
Process for the preparation of a new imidazoline.Info
- Publication number
- CH246579A CH246579A CH246579DA CH246579A CH 246579 A CH246579 A CH 246579A CH 246579D A CH246579D A CH 246579DA CH 246579 A CH246579 A CH 246579A
- Authority
- CH
- Switzerland
- Prior art keywords
- imidazoline
- phenyl
- preparation
- hydrochloride
- new
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/20—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with substituted hydrocarbon radicals, directly attached to ring carbon atoms
- C07D233/24—Radicals substituted by nitrogen atoms not forming part of a nitro radical
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Verfahren zur Herstellung eines neuen Imidazolins. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines neuen Imidazolins, das dadurch gekennzeichnet ist, dass man einen reaktionsfähigen Ester des 2-Oxymethyl-imidazolins bezw. ein Salz dieses Esters mit N-Phenyl-ss-phenyl-äthyl- amin umsetzt.
Das so erhaltene 2-(N-Phenyl-N-[ss-phe- nyl-äthyll-aminomethyl)-imidazolin bildet ein Hydrochlorid in Form von farblosen Kri stallen, die bei 221-222 schmelzen. Es soll pharmazeutische Verwendung finden oder als Zwischenprodukt zur Herstellung von Heilmitteln dienen.
Als reaktionsfähiger Ester des 2-Oxy- methyl-imidazolins wird insbesondere ein sol cher mit einer starken anorganischen oder or ganischen Säure, wie, z. B. einer Halogenwas- serstoffsäure sowie einer Alkyl- oder Arylsul- fonsäure, und vorzugsweise in Form eines seiner Salze verwendet. Die Umsetzung kann in An- oder Abwesenheit von Verdünnungs mitteln und/oder Kondensationsmitteln durch geführt werden.
<I>Beispiel:</I> 15,5 Teile 2-Chlormethyl-imidazolin- hydrochlorid, 49 Teile N-Phenyl-ss-phenyl- äthylamin und 50 Teile Alkohol werden während einigen Stunden auf 90-105 in einem Ölbad erhitzt.
Sodann wird der Al kohol abdestilliert und der Rückstand mit einer wässrigen Lösung von 8,4 Teilen Na- triumbicarbonat oder mit der entsprechen den Menge Ammoniak verrieben. Das unver brauchte N-Phenyl-phenyläthylamin wird mit einem Lösungsmittel, wie Äther, Benzol oder Toluol, ausgezogen, die wässrige Schicht mit wenig verdünnter Salzsäure neutralisiert und zum Sieden erhitzt.
Beim Abkühlen der Lösung fällt das 2-(N-Phenyl-N-[ss-phenyl- äthyl] -aminomethyl) -imidazolin-hydrochlo- rid in Form farbloser Kristalle vom F. 221 bis 222 aus.
An Stelle von Chlormethyl-imidazolin- hydrochlorid kann man von einem andern reaktionsfähigen Ester des 2 - Oxymethyl- imidazolins, wie z. B. vom Bromwasserstoff säure oder Toluolsulfosäureester, ausgehen. Ebenso lässt sich an Stelle des Hydrochlorids ein anderes Salz oder die freie Base verwen den.
Process for the preparation of a new imidazoline. The subject of the present patent is a process for the preparation of a new imidazoline, which is characterized in that a reactive ester of 2-oxymethyl-imidazoline BEZW. a salt of this ester is reacted with N-phenyl-ss-phenyl-ethylamine.
The 2- (N-phenyl-N- [ss-phenyl-ethyl-aminomethyl) -imidazoline obtained in this way forms a hydrochloride in the form of colorless crystals which melt at 221-222. It is intended to be used in pharmaceuticals or as an intermediate in the manufacture of medicinal products.
As a reactive ester of 2-oxymethyl-imidazoline is in particular a sol cher with a strong inorganic or organic acid, such as, for. B. a hydrohalic acid and an alkyl or aryl sulfonic acid, and preferably used in the form of one of its salts. The reaction can be carried out in the presence or absence of diluents and / or condensation agents.
<I> Example: </I> 15.5 parts of 2-chloromethyl-imidazoline hydrochloride, 49 parts of N-phenyl-ss-phenyl-ethylamine and 50 parts of alcohol are heated to 90-105 in an oil bath for a few hours.
The alcohol is then distilled off and the residue is triturated with an aqueous solution of 8.4 parts of sodium bicarbonate or with the corresponding amount of ammonia. The unused N-phenyl-phenylethylamine is extracted with a solvent such as ether, benzene or toluene, the aqueous layer is neutralized with a little dilute hydrochloric acid and heated to the boil.
When the solution cools, 2- (N-phenyl-N- [ss-phenyl-ethyl] -aminomethyl) -imidazoline hydrochloride precipitates in the form of colorless crystals with a melting point of 221 to 222.
Instead of chloromethyl imidazoline hydrochloride one can use another reactive ester of 2 - oxymethyl imidazoline, such as. B. from the hydrobromic acid or toluenesulfonic acid ester, proceed. Another salt or the free base can also be used instead of the hydrochloride.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH246579T | 1944-03-23 | ||
CH242839T | 1944-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH246579A true CH246579A (en) | 1947-01-15 |
Family
ID=25728749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH246579D CH246579A (en) | 1944-03-23 | 1944-03-23 | Process for the preparation of a new imidazoline. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH246579A (en) |
-
1944
- 1944-03-23 CH CH246579D patent/CH246579A/en unknown
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