Diethylamine → HCID 70665099, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of methyl 3-chloro-2-(4-fluorophenyl)quinoxaline-6-carboxylate (150 mg, 0.47 mmol) in DMSO (2 mL) was added diethylamine (173 mg, 2.37 mmol) and DIEA (170 mg, 1.32 mmol). The resulting solution was stirred overnight at 70° C. and then quenched by the addition of water/ice (40 mL), extracted with ethyl acetate (3×20 mL), the organic layers combined and dried over anhydrous magnesium sulfate and concentrated in vacuo to give a residue. Purification via silica gel column chromatography (0.5%-4% ethyl acetate in petroleum ether) afforded methyl 3-(diethylamino)-2-(4-fluorophenyl)quinoxaline-6-carboxylate as a yellow solid (100 mg, 60%).

Provenance & Evidence