反应详情

Sodium borohydride (835 mg) was added gradually to a solution of 6-(5-methyl-2-phenyl-4-oxazolylmethoxy)nicotinaldehyde (13.0 g) in tetrahydrofuran (150 ml)-methanol (10 ml) at 0° C. After stirring for 30 minutes, water was added to the reaction mixture, which was extracted with ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulfate and concentrated to obtain crystals of 6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-3-pyridylmethanol. This was recrystallized from acetone-isopropyl ether to obtain colorless prism crystals (12.4 g, yield 95%). Melting point: 121–122° C.

1. extractionwas extracted with ethyl acetate
2. washThe organic layer was washed with water
3. dry with materialdried over anhydrous magnesium sulfate
4. concentrationconcentrated