Triethylamine → 2,2,2-Trifluoro-N-{2-fluoro-5-[(trimethylsilyl)ethynyl]phenyl}acetamide

Participants

Reaction Conditions

Reaction Steps

To an oven-dried flask under N2 was added N-(5-bromo-2-fluorophenyl)-2,2,2-trifluoroacetamide (750 mg, 2.62 mmol), anhydrous degassed THF (100 mL), dichlorobis(triphenylphosphine)palladium(II) (230 mg, 0.33 mmol), copper(I) iodide (38 mg, 0.20 mmol), and trimethylsilylacetylene (640 mg, 6.53 mmol). Next, triethylamine (2.64 g, 26 mmol) was added dropwise and the resulting mixture was heated at 60° C. overnight. The crude reaction mixture was adsorbed to silica gel and purified by column chromatography (0-10% EtOAc in hexanes) to afford the desired product (0.67 g, 84%) as an off white solid. ESIMS (M−H)−=302.

Provenance & Evidence