Toluene → HCID 68091055, compound

Participants

Reaction Steps

A mixture of 2-(4-bromo-2-ethylsulfonylphenyl)-3-methyl-6-trifluoromethyl-3H-imidazo[4,5-b]pyridine (0.20 g), 2-tributylstannylpyrimidine (0.17 g), tetrakis(triphenylphosphine)palladium (27 mg) and toluene (5 ml) was heated at reflux under nitrogen atmosphere for 5.5 hours. After the mixture was cooled to room temperature, to the mixture, 2-tributylstannylpyrimidine (0.17 g) and tetrakis(triphenylphosphine)palladium (27 mg) were added, and stirred under reflux for further 8 hours. After the mixture was cooled to room temperature, water was poured thereinto, and extracted with ethyl acetate. The combined organic layer was dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue was subjected to silica gel column chromatography to give 0.20 g of 2-[2-ethylsulfonyl-4-(pyrimidine-2-yl)-phenyl)-3-methyl-6-trifluoromethyl-3H-imidazo[4,5-b]pyridine (hereinafter, Present Compound 333).

Provenance & Evidence