反应详情

温度

80 °C

A mixture of 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-2-(4-trifluoromethyl-phenoxymethyl)-benzoimidazole-1-carboxylic acid tert-butyl ester (0.046 g, 0.0887 mmol), 2-bromophenylsulfonylethanol (0.036 g, 0.133 mmol), sodium carbonate (0.056 g, 0.532 mmol), and 1,1′-[bis(di-tert-butylphosphino)ferrocene]-palladium dichloride (0.006 g, 0.00887 mmol) in DME (2 mL) and H2O (0.5 mL) was heated at 80° C. for 12 hours. The reaction mixture was concentrated under reduced pressure, and the residue was purified by chromatography (silica, EtOAc) to afford the title compound as a light brown solid (0.025 g, 59%). 1H NMR (400 MHz, CD3OD) δ (ppm): 8.17 (dd, 1H, J=8.0 Hz, J=1.2 Hz), 7.76-7.61 (m, 6H), 7.46 (dd, 1H, J=7.6 Hz, J=1.2 Hz), 7.34 (d, 1H, J=7.6 Hz), 7.26 (d, 2H, J=8.8 Hz), 5.46 (s, 2H), 3.63 (t, 2H, J=6.6 Hz), 2.91 (t, 2H, J=12.8 Hz). Mass Spectrum (LCMS, ESI pos.) Calcd. For C25H23F3N3O4S: 518.5 (M+MeCN+H), Found 518.2.

1. concentrationThe reaction mixture was concentrated under reduced pressure
2. customthe residue was purified by chromatography (silica, EtOAc)