反应详情

温度

80 °C

A mixture of 4-chloromethylsulfonyl-1-(4-cyanobenzyl)-2-piperazinone (3.20 g), 5-chlorosalicylaldehyde (2.29 g), potassium carbonate (1.48 g), potassium iodide (1.62 g) and DMF (80 ml) was stirred at 80° C. for 2 days. The reaction solution was concentrated under reduced pressure, and to the residue was added ethyl acetate. The mixture was washed with water and saturated brine, dried (MgSO4) and concentrated, and the residue was purified with silica gel column chromatography (hexane:ethyl acetate=1:1) to give colorless crystals of the title compound (384 mg).

1. concentrationThe reaction solution was concentrated under reduced pressure
2. additionto the residue was added ethyl acetate
3. washThe mixture was washed with water and saturated brine
4. dry with materialdried (MgSO4)
5. concentrationconcentrated
6. customthe residue was purified with silica gel column chromatography (hexane:ethyl acetate=1:1)