反应详情

To a solution of vanillin (20.0 g, 131 mmol) in DMF (200 mL) at room temperature was added potassium carbonate (36 g, 263 mmol) and 4-nitrophenyl trifluoromethanesulfonate (54.0 g, 197 mmol) and the reaction mixture was stirred for 8 h. EtOAc (600 mL) was added to the reaction mixture and the organic layer was washed three times with water, dried, filtered, and concentrated. The crude compound was then purified by flash chromatography (ethylacetate/hexanes 1:9→3:7) to provide 4-formyl-2-methoxyphenyl trifluoromethanesulfonate.

1. washthe organic layer was washed three times with water
2. customdried
3. filtrationfiltered
4. concentrationconcentrated
5. customThe crude compound was then purified by flash chromatography (ethylacetate/hexanes 1:9→3:7)