Potassium Phosphate, Tribasic → HCID 70664633, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (4-fluoro-2-methylphenyl)boronic acid (158 mg, 1.03 mmol) in dioxane (5.0 mL) and water (3 drops) was added methyl 2-chloro-3-[methyl(propan-2-yl)amino]quinoxaline-6-carboxylate (100 mg, 0.34 mmol), K3PO4 (215 mg, 1.01 mmol) and Pd(PPh3)4 (20 mg, 0.02 mmol), and the reaction was stirred for 1 hour at 95° C. under an inert atmosphere of nitrogen. The reaction mixture was concentrated in vacuo to provide a residue, which was purified via silica gel column chromatography (2% ethyl acetate in petroleum ether) to afford methyl 2-(4-fluoro-2-methylphenyl)-3-(isopropyl(methyl)amino)quinoxaline-6-carboxylate as a light yellow solid (53.0 mg, 42%).

Provenance & Evidence