反应详情

温度

100 °C

A mixture of 4-chloromethyl-2-phenyloxazole (10.0 g), vaniline (7.9 g), potassium carbonate (8.6 g) and N,N-dimethylformamide (DMF) (90 ml) was stirred for 2 hours at 100° C. The reaction mixture was poured into ice-water. Resulting crystalline precipitate was collected by filtration, which was dissolved in chloroform (400 ml). The chloroform layer was washed with water, dried (MgSO4) and concentrated. Residual crystalline product was collected by filtration to yield 3-methoxy-4-(2-phenyl-4-oxazolylmethoxy)benzaldehyde (15.4 g, 97%), which was recrystallized from ethyl acetate-hexane to give colorless prisms, m.p.119-120° C.

1. filtrationResulting crystalline precipitate was collected by filtration, which
2. dissolutionwas dissolved in chloroform (400 ml)
3. washThe chloroform layer was washed with water
4. dry with materialdried (MgSO4)
5. concentrationconcentrated
6. filtrationResidual crystalline product was collected by filtration