(Trifluoromethyl)trimethylsilane → HCID 59251600, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-[1-(4-bromophenyl)-2-(2-trifluoromethyl-phenyl)-1H-imidazol-4-yl]-ethanone (0.24 g, 0.59 mmol) and trifluoromethyl-trimethylsilane (0.10 mL, 0.68 mmol) in toluene (3 mL, anhyd) at 0° C. was added a 1.0M solution of tetrabutylammonium fluoride (TBAF) in THF (0.12 mL, 20 mol %, dried over 4 Å molecular sieves). After 24 h the reaction mixture was charged with additional trifluoromethyl-trimethylsilane (0.10 mL) and 1.0M TBAF (0.12 mL) and then heated at 50° C. After 48 h (total) the reaction mixture was allowed to cool to ambient temperature, quenched with H2O and extracted with DCM (2×30 mL). The combined extracts were dried (Na2SO4), concentrated and purified by chromatography (silica, EtOAc/Hex, 20:80 to 60:40) to yield the title compound (0.11 g, 39%) as a white solid. 1H-NMR (DCM-d2): δ 7.76 (d, 1H), 7.50-7.60 (m, 2H), 7.46 (d, 2H), 7.27 (m, 2H), 7.02 (d, 2H), 4.36 (s, 1H), 1.72 (s, 3H).

Provenance & Evidence