N-4-Dimethyl-N-[(trifluoromethyl)sulfanyl]benzene-1-sulfonamide

purified by flash chromatography (cyclohexane/ethyl acetate: 99:1 to 96:4) to afford BB23 (84.22 g, 88%, light yellow solid).

¹H NMR (400 MHz, CDCl₃) δ = 7.75 (m, 2H), 7.35 (m, 2H), 3.31 (s, 3H), 2.44 (s, 3H).

¹³C NMR (101 MHz, CDCl₃) δ = 145.1, 134.3, 130.1, 129.0 (q, ³J(C,F) = 316 Hz), 127.9, 43.8, 21.7.

¹⁹F NMR (376 MHz, CDCl₃) δ = −50.34 (s, 3F).

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Wayanad, Calicut, kerala, india

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