Potassium Carbonate → HCID 68492752, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 4-methyl-2-(2H-pyrazol-3-yl)-thiazole-5-carboxylic acid ethyl ester (2.5 g, 10.54 mmol) in dimethyl sulfoxide (50 mL) was treated with 1-(2-bromo-ethyl)-4-fluoro-benzene (2.10 g, 10.54 mmol) and potassium carbonate (4.30 g, 31.64 mmol), and the reaction mixture was heated to 90° C. for 16 hr. The reaction mixture was cooled to room temperature, diluted with ethyl acetate (100 mL), and washed with brine (2×100 mL). The organic phase was dried (Na2SO4) and evaporated. The residue was purified by flash column chromatography (hexanes:ethyl acetate, 1:1) to provide 2-{1-[2-(4-fluoro-phenyl)-ethyl]-1H-pyrazol-3-yl}-4-methyl-thiazole-5-carboxylic acid ethyl ester (1.57 g, 45% yield) as a white solid. MS (M+H)+=360; Rt=1.65 min.

Provenance & Evidence