2-Methoxyethylamine → 4-amino-N-(2-methoxyethyl)benzene-1-sulfonamide

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A mixture of 2-methoxyethylamine (859 mg, 11.4 mmol), sulphanilyl fluoride (1.0 g, 5.71 mmol) and triethylamine (1.72 g, 22.9 mmol) in 1-butanol (15 ml) was heated at reflux for 18 hours. The mixture was allowed to cool and the volatiles were removed by evaporation. The residue was purified by chromatography eluting with ethyl acetate/hexane (50:50) increasing in polarity to (70:30) to give the title compound (860 mg, 65%). NMR: 2.78 (q, 2H), 3.15 (s, 3H), 3.25 (t, 2H), 5.87 (s, 2H), 6.58 (d, 2H), 7.10 (t, 1H), 7.40 (d, 2H); m/z 231.

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