Water → HCID 70664928, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of methyl 3-(2-methylpiperidin-1-yl)-2-(trifluoromethylsulfonyloxy)quinoxaline-6-carboxylate (880 mg, crude) in dioxane (25 ml) was added Pd(PPh3)4 (100 mg, 0.09 mmol), 4-fluorophenylboronic acid (485 mg, 3.47 mmol), K3PO4 (735 mg, 3.46 mmol) and water (3 ml). The resulting solution was stirred for 1 hour at 90° C. under an inert atmosphere of nitrogen, and then concentrated in vacuo to give a residue, which was purified via silica gel column chromatography (1%-10% ethyl acetate in petroleum ether) to afford methyl 2-(4-fluorophenyl)-3-(2-methylpiperidin-1-yl)quinoxaline-6-carboxylate as a yellow solid (330 mg).

Provenance & Evidence