反应详情

温度

100 °C

To a suspension of 7-bromo-1H-indole (196 mg, 0.00100 mol) in 1,4-dioxane (4 mL) and water (1 mL) was added phenylboronic acid (146 mg, 0.1020 mol), potassium carbonate (414 mg, 0.00300 mol) and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II), complex with dichloromethane (1:1) (82 mg, 0.00010 mol). The flask was evacuated and refilled with nitrogen, three times then the mixture was heated at 100° C. overnight. The mixture was diluted with EtOAc (30 mL), washed with sat. aq. NaHCO3 (10 mL) and brine (10 mL), then dried over anhydrous sodium sulfate and the solvent removed in vacuo. The crude material was purified by chromatography over silica gel eluting with hexane/EtOAc to give the title compound (180 mg, 93% yield). 1H NMR (CDCl3, 400 MHz): δ 6.64 (dd, J=3.0, 2.0 Hz, 1H), 7.18-7.26 (m, 3H), 7.41 (t, J=7.5 Hz, 1H), 7.48-7.57 (m, 2H), 7.61-7.70 (m, 3H) and 8.43 (br s, 1H) ppm. LC-MS (ES+.): 194 [MH+].

1. customThe flask was evacuated
2. additionrefilled with nitrogen, three times
3. additionThe mixture was diluted with EtOAc (30 mL)
4. washwashed with sat. aq. NaHCO3 (10 mL) and brine (10 mL)
5. dry with materialdried over anhydrous sodium sulfate
6. customthe solvent removed in vacuo
7. customThe crude material was purified by chromatography over silica gel eluting with hexane/EtOAc