反应详情

To a solution of 1-hydroxy-2-(2-methoxyphenyl)-4-methyl-5-(3-pyridyl)imidazole (0.5 g) in N,N-dimethylformamide (10 ml) was added phosphorus trichloride (0.31 ml) under ice-cooling. The mixture was stirred for 2 hours at 5° to 10° C. The mixture was poured into water (100 ml), and neutralized with aqueous sodium bicarbonate. The precipitate was collected, washed with water, and dried to give 2-(2-methoxyphenyl)-5-methyl-4-(3-pyridyl)imidazole (0.31 g).

1. temperaturecooling
2. customThe precipitate was collected
3. washwashed with water
4. customdried