反应详情

NaH (1.3 g, 54 mmol) is added to a solution of 5.0 g (41 mmol) 3-hydroxybenzaldehyde in 30 ml DMF at 0° C. After stirring for 1 h 4.44 ml (45 mmol) 2-chloroethyl methyl sulphide is added. The reaction mixture is warmed to room temperature and stirring is continued for 16 h. Then the reaction mixture is poured onto water and extracted with ethyl acetate. The combined organic layers are washed with water and brine, dried over MgSO4, filtered and concentrated in vacuo. The residue is purified by flash-chromatography on silica gel (hexane/EtOAc=3:1) to afford the title compound as a colorless oil.

1. additionis added
2. additionThen the reaction mixture is poured onto water
3. extractionextracted with ethyl acetate
4. washThe combined organic layers are washed with water and brine
5. dry with materialdried over MgSO4
6. filtrationfiltered
7. concentrationconcentrated in vacuo
8. customThe residue is purified by flash-chromatography on silica gel (hexane/EtOAc=3:1)