Potassium Carbonate → 2-(Oxiran-2-yl)benzene-1-sulfonamide

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A solution consisting of 2-ethenylbenzenesulfonamide (1.5 g, 8.1 mmol) m-chloroperbenzoic acid (1.4 g, 8.1 mmol) and potassium carbonate (1.1 g, 8.1 mmol) in 150 ml of chloroform was stirred for 4 days at room temperature. The reaction was filtered and the filtrate was washed with saturated sodium bicarbonate. The organic layer was separated, dried and concentrated. The resulting oil was flash chromatographed (methylene chloride) to yield the subject compound as a white solid. m.p. 136°-139° C.

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