Water → 4'-Chloro-4-cyano-N-ethyl-2'-nitrobenzenesulfonanilide

Participants

Reaction Steps

To a suspension of sodium hydride (60%, 0.10 g (2.50 mmol)) in tetrahydrofuran (THF)(3.0 ml), 4-chloro-N-ethyl-2-nitroaniline (0.40 g (1.99 mmol)) was added with stirring at room temperature. To the mixture, after stirring for 30 minutes at room temperature, 4-cyanobenzenesulfonyl chloride (0.50 g (2.48 mmol)) was added and the resulting mixture was stirred at room temperature for 3 hours. The reaction mixture was poured into water and the resulting mixture was extracted with ethyl acetate. The extract was washed with a saturated aqueous solution of sodium chloride, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography with ethyl acetate-hexane (1:2) as eluent, to give 0.47 g (64%) of the title compound as pale yellow crystals.

Provenance & Evidence