反应详情

To a solution of DMSO (50 mL) of p-fluorophenol (3.6 g) was added NaH (1.3 g/60% in oil) at room temperature, which was stirred for 15 minutes at room temperature. 5-Nitro-furan-2-carbaldehyde (5.0 g) was then added thereto, which was stirred for 40 minutes at room temperature. Water was added to the reaction solution, which was then extracted with ethyl acetate. The solvent was evaporated from the organic layer under a reduced pressure, and the residue was purified by silica gel chromatography (heptane:ethyl acetate=2:1) to obtain 5-(4-fluoro-phenoxy)-furan-2-carbaldehyde (1.6 g).

1. stirringwhich was stirred for 40 minutes at room temperature
2. extractionwas then extracted with ethyl acetate
3. customThe solvent was evaporated from the organic layer under a reduced pressure
4. customthe residue was purified by silica gel chromatography (heptane:ethyl acetate=2:1)