Heptane → 5-{1-[4-(3-methyl-4-trifluoromethyl-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid tert-butyl amide

Participants

Reaction Steps

A stirred mixture of 4-(3-methyl-4-trifluoromethyl-phenyl)-2-(4-tributylstannanyl-imidazol-1-yl)-6-trifluoromethyl-pyrimidine (Example G.7) (0.33 g, 0.5 mmol), commercially available 5-bromothiophene-2-N-tert-butylsulfonamide (0.16 g, 0.55 mmol), tetrakis(triphenyl-phosphine)palladium (0.035 g, 0.03 mmol) in toluene (6 mL) was heated under reflux conditions for 15 h, heptane (10 mL) was added and the mixture was stirred at RT for 1 h. The precipitate was collected by filtration and dried to yield 5-{1-[4-(3-methyl-4-trifluoromethyl-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-thiophene-2-sulfonic acid tert-butyl amide (0.24 g) as a light yellow solid.

Provenance & Evidence