Water → N-methyl-2'-nitro-p-toluenesulfonanilide

Participants

Reaction Steps

To a suspension of sodium hydride (60%, 0.15 g (3.75 mmol)) in 3.0 ml of DMF, 2′-nitro-p-toluenesulfonanilide (1.00 g (3.42 mmol)) was added with stirring at room temperature. To the resulting mixture, after 15 minutes' stirring at room temperature, dimethyl sulfate (0.4 ml (4.22 mmol)) was added dropwise. After 2 hour's stirring, water was added to bring about separation of crystals. The resulting crystals were filtered, washed with water, dried and subjected to silica gel column chromatography with ethyl acetate-hexane (1:2 to 1:1) as eluent to give 0.93 g (89%) of N-methyl-2′-nitro-p-toluenesulfonanilide (Compound No.38) as pale yellow crystals.

Provenance & Evidence