Reaktion #831249

Reaktionsgleichung

diethyl ether

sodium hydride

4-propylphenol

4-(2-chloroethyl)-1H-imidazole hydrochloride

→

4-[2-(4-Propylphenoxy)ethyl]-1H-imidazole

Lösungsmittel

dimethylformamide

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.STIRRINGthe mixture is stirred at 80° C. for 3 days
2. 2
   TemperaturThe reaction mixture is cooled
3. 3
   SonstigeThe precipitate is separated by filtration
4. 4
   Sonstigethe filtrate is evaporated under reduced pressure
5. 5
   Sonstigeto give a residue which
6. 6
   Sonstigeis purified by preparative high performance chromatography

Vorschrift

240 mg (60% in oil; 6 mmol) of sodium hydride are slowly added to a solution of 1.63 g (12 mmol) of 4-propylphenol in 10 ml of dimethylformamide and the mixture is stirred at room temperature for 1 hour. 200 mg (1.2 mmol) of 4-(2-chloroethyl)-1H-imidazole hydrochloride and tetrabutylammonium iodide are added and the mixture is stirred at 80° C. for 3 days. The reaction mixture is cooled and 150 ml of diethyl ether are added. The precipitate is separated by filtration and the filtrate is evaporated under reduced pressure to give a residue which is purified by preparative high performance chromatography. The title compound is converted to the oxalate (from an ethanol/diethyl ether mixture), M.p.: 168°-171° C.

Quelle