Water → 3-(Ethylsulfonyl)-4-formylbenzonitrile

Participants

Reaction Conditions

Reaction Steps

In an Emrys microwave, 4-(1,3-dioxan-2-yl)-3-(ethylsulfonyl)benzonitrile (1230 mg, 4.4 mmol) and pyridinium 4-toluenesulfonate (814 mg, 3.3 mmol; 0.75 eq.) in acetone/water (1:1, 20 ml) were heated with stirring at 165° C. for 7 min. The reaction mixture was then added to water (150 ml) and extracted with ethyl acetate (6×50 ml). The combined organic phases were then washed with saturated sodium chloride solution (30 ml), dried over sodium sulfate, filtered and concentrated under reduced pressure. The crude product was subjected to flash chromatography on silica gel (mobile phase: cyclohexane→cyclohexane/ethyl acetate 3:2). The title compound was isolated as a solid (0.89 g, 90% of theory).

Provenance & Evidence