Nitrogen → HCID 9968712, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 3-(3-bromo-4-fluorophenyl)-7-trifluoromethylimidazo[1,2-α]pyrimidine (70 mg, 0.19 mmol) and 4-(tri-n-butylstannyl)pyridine (107 mg, 0.29 mmol) in N,N-dimethylacetamide (3 ml) was degassed with N2. Tetrakis(triphenylphosphine)palladium(0) (30 mg, 0.026 mmol) and copper(I) iodide (15 mg, 0.079 mmol) was added and the mixture heated at 80° C. for 6 h. The solvent was evaporated in vacuo and the residue partitioned between dichloromethane and water, separated and the aqueous re-extracted with dichloromethane. The combined organics were washed with brine, dried (MgSO4) and evaporated. The residue was purified using preparative thin-layer chromatography on silica gel, using 30% ethyl acetate/dichloromethane as the eluent, to give a yellow solid. Further purification using preparative thin-layer chromatography on silica gel, eluting with 2% methanol/dichloromethane, afforded 3-[4-fluoro-3-(pyridin-4-yl)phenyl]-7-trifluoromethylimidazo[1,2-α]pyrimidine as a cream solid: δH (360 MHz, DMSO) 7.52 (1H, d, J 7), 7.63 (1H, dd, J 10 and 8), 7.71-7.73 (2H, m), 7.90 (1H, ddd, J 9, 5 and 2), 8.04 (1H, dd, J 7 and 2), 8.33 (1H, s), 8.72 (2H, m), 9.37 (1H, d, J 7); m/z (ES+) 359 (M++H).

Provenance & Evidence