CH246199A - Process for the preparation of a basic ester of a 1-aryl-cycloalkyl-1-carboxylic acid. - Google Patents
Process for the preparation of a basic ester of a 1-aryl-cycloalkyl-1-carboxylic acid.Info
- Publication number
- CH246199A CH246199A CH246199DA CH246199A CH 246199 A CH246199 A CH 246199A CH 246199D A CH246199D A CH 246199DA CH 246199 A CH246199 A CH 246199A
- Authority
- CH
- Switzerland
- Prior art keywords
- carboxylic acid
- cycloalkyl
- aryl
- preparation
- basic ester
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
Verfahren zur Darstellung eines basischen Esters einer.'l-Aryl-cycloalkyl l carbonsäur'e. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Darstellung eines basi schen Esters einer 1-Aryl-cycloalkyl-l-car- bonsäure. Das Verfahren ist dadurch gekenn zeichnet, dass man ss-(Methyl-isopropyl- amino)
-äthanol auf eine Verbindung der Formel
EMI0001.0014
worin X einen bei der Reaktion sich abspal tenden Rest bedeutet, einwirken lässt. Als Verbindungen der obigen Formel können bei spielsweise verwendet werden:
die freie Säure, dann vor allem ihre Halogenide, aber auch des Anhydrid oder ihre Ester mit niederen Alkoholen oder Phenolen. Die er haltene neue Verbindung, der 1-Phenyl-cyclo- pentan-1- carbonsäure.- A- (methyl-isopropyl- amino)-äthylester, bildet ein i01 vom Siede punkt 110-115 unter 0,05 mm Druck;
,das Hydrochlorid schmilzt bei 137-139 . Die Verbindung soll therapeutische Verwendung finden.
Beispiel: 30 Teile 1-Phenyl-cyclopentan-l-carbon- säure-chlorid (Kp.imm 105-107 ) werden mit 46 Teilen ss-(Methyl-isopropyl-amino)-äthanol (aus Methyl-isopropyl-amin und Äthylen- ogyd; gp." .n, 56-60 ) in 50 Volumteilen absolutem Benzol 4 Stunden lang unter Rückfluss gekocht.
Nach dem Erkalten wird mit 2n-Natronlauge und Wasser gewaschen und das Lösungsmittel auf dem Wasserbad abdestilliert. Die Destillation des Rückstan des im Hochvakuum ergibt 34 Teile eines als vom Siedepunkt 110-115 unter 0;05 mm Druck. Das Hydrochlorid dieser Base schmilzt bei 137-139 und bildet, aus Essigester- Methanol oder Aceton umkristallisiert, farb lose griställehen. -
Process for the preparation of a basic ester of a'l-aryl-cycloalkyl-carboxylic acid. The present patent is a process for the preparation of a basic ester of a 1-aryl-cycloalkyl-1-carboxylic acid. The process is characterized in that one ss- (methyl-isopropyl-amino)
-ethanol to a compound of the formula
EMI0001.0014
where X is a residue that splits off during the reaction, can act. As compounds of the above formula can be used for example:
the free acid, then especially its halides, but also the anhydride or its esters with lower alcohols or phenols. The new compound obtained, the 1-phenyl-cyclopentane-1-carboxylic acid.- A- (methyl-isopropyl-amino) -ethyl ester, forms an i01 boiling point 110-115 under 0.05 mm pressure;
, the hydrochloride melts at 137-139. The compound is intended to find therapeutic use.
Example: 30 parts of 1-phenyl-cyclopentane-l-carboxylic acid chloride (b.p.imm 105-107) are mixed with 46 parts of ss- (methyl-isopropyl-amino) -ethanol (from methyl isopropyl-amine and ethylene ogyd; gp. ".n, 56-60) refluxed in 50 parts by volume of absolute benzene for 4 hours.
After cooling, it is washed with 2N sodium hydroxide solution and water and the solvent is distilled off on the water bath. The distillation of the residue in a high vacuum gives 34 parts of a boiling point 110-115 under 0.05 mm pressure. The hydrochloride of this base melts at 137-139 and, when recrystallized from ethyl acetate-methanol or acetone, forms colorless granules. -
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH246199T | 1944-03-20 | ||
| CH234452T | 1944-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH246199A true CH246199A (en) | 1946-12-15 |
Family
ID=25727876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH246199D CH246199A (en) | 1944-03-20 | 1944-03-20 | Process for the preparation of a basic ester of a 1-aryl-cycloalkyl-1-carboxylic acid. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH246199A (en) |
-
1944
- 1944-03-20 CH CH246199D patent/CH246199A/en unknown
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