CH249054A - Process for the preparation of a basic amide of a 1-aryl-cycloalkyl-1-carboxylic acid. - Google Patents
Process for the preparation of a basic amide of a 1-aryl-cycloalkyl-1-carboxylic acid.Info
- Publication number
- CH249054A CH249054A CH249054DA CH249054A CH 249054 A CH249054 A CH 249054A CH 249054D A CH249054D A CH 249054DA CH 249054 A CH249054 A CH 249054A
- Authority
- CH
- Switzerland
- Prior art keywords
- carboxylic acid
- formula
- compound
- cycloalkyl
- aryl
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/12—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by halogen atoms or by nitro or nitroso groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung eines basischen Amids einer 1-Aryl-cycloalkyl-l-carbonsäure. Gegenstand vorliegenden Patentes ist ein Verfahren zur Darstellung eines basnechen Amids einer 1-Aryl-cycloalkyl-l-earbonsäure. Das Verfahren ist dadurch gekennzeiehnet,
dass man eine Verbindung der Formel
EMI0001.0009
auf eine Verbindung der Formel
EMI0001.0010
worin X und Y zwei mit Ausnahme einer in einem von ihnen enthaltenen C2H"N- Gruppe bei der Reaktion sich abspaltende Reste bedeuten, einwirken lässt.
Man kann beispielsweise 1-Phenyl=cyclo- hexan-l-carbonsäure oder ein reaktionsfähi ges Derivat derselben, z. B. ein Halogenid, Anhydrid oder einen Ester, in An- oder Ab wesenheit von Kondensationsmitteln und Verteilungsmitteln mit Dimethylaminoäthy1- äthyl-amin oder eine Metallverbindung des 1-Phenyl -üyclohexan -1.
- carbonsäure- äthyl - amids mit einem reuktionssfähigen Ester des Dimet\hylemino-ätha@nols, umsetzen.
Die erhaltene neue Verbindung, das 1-Phenyl-eyclo'hexan-1-carbon.säure-dimethyl- amlnoäthyl-äthyl-amid, ist eine Base vom Siedepunkt 125--180 unter 0,15 mm Druck; ihr Hydrochlorid schmilzt bei 176-178 . Die Verbindung soll therapeutische Verwen dung finden.
<I>Beispiel 1:</I> 22,2 Teile 1-Phenyl-cysslohexa,n-l-carbon- säure-c)hIorid" gelöst in 20'0 Teilen absolutem Benzol, werden zu einer Lösung von 11,6 Teilen Dimethylanrinoäthyl-äthyl-amin in <B>1010</B> Teilen absolutem Benzol getropft. Das Gemisch wird 2 Stunden unter Rückfluss zum Sieden erhitzt. Nach Erkalten wird mit Wasser verrührt, getrennt und der Benzol lösung durch Ausschütteln mit verdünnter Salzsäure die Base völlig entzogen.
Die ver- ednigten wässerigen Lösungen werden aus geäthert, die Base mit Pottasche in Freiheit besetzt und in Äther aufgenommen. Die ätherische Lösung wird mit Wasser gewa- s@chen, über Pott.asehe getrocknet und das Lösungsmittel abdestil:liert. Das, erhaltene basische Amid siedet bei 19'5-130 unter 0,15 mm Druck.
Etwas bessere Ausbeuten erhält man bei Anwendung eines Mersühusees an Diamin, d. h. von 1,2-2 M o1 auf 1 Mo1 Säurechlorid. An Stelle des Säurechloride können auch andere 11alogenide der 1-Phenyl-,cycl-ohexan- 1--car@bonsäure, die Säure selbst, ihre Ester oder ihr Anhydrid verwendet werden.
<I>Beispiel 2:</I> 2:8,1 Teile 1-Phenyl-cyc1ohegan-l-carbon- säure-äthylamid werden mit<B>100</B> Teilen abso- lutem Toluol und 5 Teilen fein pulverisier- tem Natriumamid versetzt und so lange unter Rühren erwärmt, bis! die Ammoniakbildung beendet ist.
Nach dem Erkaliten werden 10,7 Teile Dimethylamino-äthylchlorid in 150 Teilen absolutem Toluol zugegeben, die ischungo einige Zeit bei Zimmertemperatur <B>3</B> gerührt und anschliessend 2:
Stunden lang auf 90-100 erwärmt. Das erkaltete Reaktions- produkt wird mit 100 Teilen Was er versetzt, im Scheidetrichter getrennt und die Toluol- I.ösung einige Male mit Wasser gewaschen.
Dann werden die basischen Anteilre mit ver dünnter Säure extrahiert, die vereinigten sau ren Lösungen alkalisch gestellt und aus@ge- ät\hert.. Die Ätherlösungen ergeben nach dem Trocknen mit Natriumsulfat und Verdamp fen ein 01 vom Siedepunkt 12@5=130 unter 0,1,5 mm Druck.
Process for the preparation of a basic amide of a 1-aryl-cycloalkyl-1-carboxylic acid. The present patent is a process for the preparation of a basic amide of a 1-aryl-cycloalkyl-1-carboxylic acid. The procedure is characterized by
that you can get a compound of the formula
EMI0001.0009
to a compound of the formula
EMI0001.0010
where X and Y are two radicals which are split off in the reaction, with the exception of a C2H "N group contained in one of them, can act.
You can, for example, 1-phenyl = cyclohexane-1-carboxylic acid or a reactive derivative thereof, z. B. a halide, anhydride or an ester, in the presence or absence of condensing agents and distribution agents with dimethylaminoäthy1- äthyl-amine or a metal compound of 1-phenyl -üyclohexan -1.
- carboxylic acid ethyl amide with a reactive ester of dimethylemino-etha @ nol.
The new compound obtained, 1-phenyl-eyclo'hexane-1-carboxylic acid-dimethyl-aminoethyl-ethyl-amide, is a base with a boiling point of 125-180 under 0.15 mm pressure; its hydrochloride melts at 176-178. The compound is intended to find therapeutic use.
<I> Example 1: </I> 22.2 parts of 1-phenyl-cysslohexa, nl-carboxylic acid-c) chloride "dissolved in 20'0 parts of absolute benzene are added to a solution of 11.6 parts of dimethylanrinoethyl Ethylamine in 1010 parts of absolute benzene is added dropwise. The mixture is heated to boiling under reflux for 2 hours. After cooling, it is stirred with water, separated and the base is completely removed from the benzene solution by shaking with dilute hydrochloric acid.
The diluted aqueous solutions are etherified, the base is freely occupied with potash and taken up in ether. The ethereal solution is washed with water, dried over potatoes and the solvent is distilled off. The basic amide obtained boils at 19-5-130 under 0.15 mm pressure.
Somewhat better yields are obtained when using a Mersühusee of diamine, i. H. from 1.2-2 M o1 to 1 Mo1 acid chloride. Instead of the acid chloride, it is also possible to use other 11alides of 1-phenyl-, cycl-ohexane-1-carboxylic acid, the acid itself, its ester or its anhydride.
<I> Example 2: </I> 2: 8.1 parts of 1-phenyl-cyclohegan-l-carboxylic acid-ethylamide are finely pulverized with <B> 100 </B> parts of absolute toluene and 5 parts added sodium amide and heated while stirring until! the ammonia formation has ended.
After the calcination, 10.7 parts of dimethylaminoethyl chloride in 150 parts of absolute toluene are added, the ischungo is stirred for some time at room temperature 3 and then 2:
Heated to 90-100 hours. The cooled reaction product is mixed with 100 parts of water, separated in a separating funnel and the toluene solution is washed a few times with water.
The basic components are then extracted with dilute acid, the combined acidic solutions are made alkaline and etherified from @. After drying with sodium sulfate and evaporation, the ethereal solutions give an 01 with a boiling point of 12 @ 5 = 130 below 0 , 1.5mm print.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH249054T | 1944-03-20 | ||
CH242245T | 1944-03-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH249054A true CH249054A (en) | 1947-05-31 |
Family
ID=25728682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH249054D CH249054A (en) | 1944-03-20 | 1944-03-20 | Process for the preparation of a basic amide of a 1-aryl-cycloalkyl-1-carboxylic acid. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH249054A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3083204A (en) * | 1956-06-16 | 1963-03-26 | Knoll Ag | Esters and amides of 2-phenyl-bicyclo-(2, 2, 1) heptane-2-carboxylic acid, 2-phenyl-bcyclo(2, 2, 1)-5-heptene-2-carboxylic acid, 2-phenyl-bicyclo(2, 2, 2)-5-octene-2-carboxylic acid and 2-phenyl-bicyclo(2, 2, 2)octane carboxylic acid |
-
1944
- 1944-03-20 CH CH249054D patent/CH249054A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3083204A (en) * | 1956-06-16 | 1963-03-26 | Knoll Ag | Esters and amides of 2-phenyl-bicyclo-(2, 2, 1) heptane-2-carboxylic acid, 2-phenyl-bcyclo(2, 2, 1)-5-heptene-2-carboxylic acid, 2-phenyl-bicyclo(2, 2, 2)-5-octene-2-carboxylic acid and 2-phenyl-bicyclo(2, 2, 2)octane carboxylic acid |
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