Cesium carbonate → Methyl 2-phenyl-1H-indole-3-carboxylate

Participants

Reaction Steps

Methyl 2-bromo-1H-indole-3-carboxylate (200 mg, 0.79 mmol), phenylboronic acid (122 mg, 1 mmol), tetrakis(triphenylphosphine)palladium (231 mg, 0.2 mmol) and cesiumcarbonate (652 mg, 2 mmol) in dioxane/water (20 mL/5 mL) were stirred at room temperature 15 hours. Filterated the solid and the solvent was concentrated in vacuum. The resulted residue was purified by silica gel column (ethyl acetate: petroleum ether=1:2) to obtain methyl 2-phenyl-1H-indole-3-carboxylate as a pale yellow solid (160 mg, 80%) LRMS (M+H+) m/z: calcd 251.1 found 251.

Provenance & Evidence