反应详情

240 mg (60% in oil, 6 mmol) of sodium hydride are slowly added to a solution of 1.48 g (12 mmol) of 4-methoxyphenol in 7 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 (catalyst) are added and the mixture is stirred at 80° C. for 2 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 and recrystallized from ethanol, M.p.: 178°-181° C. Elemental analysis: calculated: C 55.8 H 5.37 N 9.5 found: C 55.9 H 5.40 N 9.6

1. stirringthe mixture is stirred at 80° C. for 2 days
2. temperatureThe reaction mixture is cooled
3. customThe precipitate is separated by filtration
4. customthe filtrate is evaporated under reduced pressure
5. customto give a residue which
6. customis purified by preparative high performance chromatography
7. customrecrystallized from ethanol, M.p.: 178°-181° C