反应详情

To a mixture of 3-methoxy-4-[(5-methyl-2-phenyl-4-oxazolyl)methoxy]benzyl alcohol (4.00 g), 2-chloro-3-cyanopyridine (1.62 g) and N,N-dimethylformamide (40 mL) was added sodium hydride (60%, oil, 515 mg) under ice-cooling. The reaction mixture was stirred at room temperature for 15 hrs. Water was added to the reaction mixture and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The obtained crystals were recrystallized from ethyl acetate-hexane to give 2-[3-methoxy-4-[(5-methyl-2-phenyl-4-oxazolyl)methoxy]benzyloxy]nicotinonitrile as pale-yellow crystals (4.50 g, 90%). melting point: 117-118° C.

1. temperaturecooling
2. extractionthe mixture was extracted with ethyl acetate
3. washThe organic layer was washed with saturated brine
4. dry with materialdried over anhydrous magnesium sulfate
5. concentrationconcentrated
6. customThe obtained crystals were recrystallized from ethyl acetate-hexane