1-Butanesulfonyl chloride → N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)butane-1-sulfonamide

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Reaction Steps

According to the general procedure A, 5,6-difluoro-N1-(2-fluoro-4-iodophenyl)benzene-1,2-diamine was reacted with n-butylsulfonyl chloride to obtain the desired product. Yield: 55%. 1H-NMR (500 MHz, CDCl3): δ=7.50-7.43 (m, 1H), 7.35-7.34 (m, 1H), 7.27-7.26 (m, 1H), 7.15-7.09 (q, 1H, J=1.6 Hz), 6.62 (s, 1H, br), 6.22-6.18 (q, 1H, J=1.5 Hz)5 5.65 (s, 1H, br), 3.06-3.031 (t, 2H, J=1.4 Hz), 1.75-1.71 (m, 2H), 1.38-1.36 (m, 2H), 0.87-0.86 (t, 3H, J=1.3 Hz); m/z=483 [M−1]−.

Provenance & Evidence