Potassium Carbonate → 4-chloro-5,7-difluoro-3-methyl-2-(1-methyl-1H-indol-5-yl)quinoline

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of 2,4-dichloro-5,7-difluoro-3-methylquinoline (1.0 g, 4.03 mmol) in toluene (8.1 mL) was added 1-methylindole-5-boronic acid pinacol ester (1.037 g, 4.03 mmol), potassium carbonate (1.67 g, 12.09 mmol) and palladium tetrakistriphenylphosphine (0.466 g, 0.403 mmol). The reaction was stirred at 100° C. and stirring continued for 16 h. The reaction mixture was cooled to rt and concentrated in vacuo. The crude material was purified by column chromatography on silica gel, eluting with 0-50% EtOAc in hexanes to provide 4-chloro-5,7-difluoro-3-methyl-2-(1-methyl-1H-indol-5-yl)quinoline as a clear solid. Mass Spectrum (ESI) m/e=343.1 (M+1).

Provenance & Evidence