反应详情

Prepared from VII and 2-bromo-4-fluoroaniline. Flash chromatography eluent (DCM-EtOAc, 95:5). Yield: 44%; yellow solid; mp>260° C.; IR (KBr) νmax/cm−1 3068, 2853, 2228, 1736, 1644, 1611, 1582, 1497, 1474, 1459, 1380, 1353, 1309, 1252, 1188, 1171, 1127, 1050, 1031, 980, 881, 860, 826; 19F NMR (282 MHz, DMSO-d6) δ −119.33; 1H NMR (300 MHz, DMSO-d6) δ 8.56 (d, 1H, J=9.0 Hz), 8.18 (s, 1H), 7.81 (d, 1H, J=9.0 Hz), 7.63 (d, 1H, J=7.8 Hz) 7.24-7.17 (m, 2H); HRMS calcd for C16H8N5SBrF (M+H+): 399.9668, found 399.9675.