反应详情

温度

120 °C

A 10-mL microwave vial was charged with 4-chloro-2-(3-chlorophenyl)-6-(trifluoromethyl)pyridine (0.140 g, 0.48 mmol), 4-aminophenethyl alcohol (0.099 g, 0.72 mmol), palladium acetate (0.005 g, 0.024 mmol), rac-BINAP (0.022 g, 0.036 mmol) and cesium carbonate (0.390 g, 1.20 mmol) in dioxane (5 mL) under argon. The reaction mixture was heated to 120° C. under microwave irradiation for 2 h. The reaction mixture was cooled, and absorbed onto silica (5 g). Purification by chromatography on silica using hexanes/ethyl acetate (10:0 to 0:10) as eluent followed by preparative HPLC (water/acetonitrile with 0.05% TFA) afforded the title compound (0.093 g, 50%) as a pale yellow solid. MW=392.80. M.p. 60-62° C. 1H NMR (DMSO-d6, 500 MHz) δ 9.30 (s, 1H), 7.99-7.96 (m, 1H), 7.91-7.86 (m, 1H), 7.57-7.51 (m, 2H), 7.50 (d, J=2.0 Hz, 1H), 7.30-7.26 (m, 2H), 7.24-7.20 (m, 2H), 7.18 (d, J=2.0 Hz, 1H), 4.64 (t, J=5.0 Hz, 1H), 3.67-3.58 (m, 2H), 2.73 (t, J=7.0 Hz, 2H); ESI MS m/z 393 [M+H]+.

1. temperatureThe reaction mixture was cooled
2. customabsorbed onto silica (5 g)
3. customPurification by chromatography on silica