Ethyl Acetate → (R)-3-(4-Ethynyl-phenyl)-1-(2-methyl-pyridin-4-yl)-3-o-tolyl-propan-1-one

Participants

Reaction Steps

To a solution of (R)-1-(2-methyl-pyridin-4-yl)-3-o-tolyl-3-(4-trimethylsilanylethynyl-phenyl)-propan-1-one (100 mg) in methanol (5 mL) was added at 0° C. potassium carbonate (3.4 mg). The reaction mixture was stirred at room temperature for 20 h. A saturated aq. solution of ammonium chloride and ethyl acetate were added, the phases were separated and the inorganic one was extracted with ethyl acetate (2×). The combined organic layers were washed with brine, dried over sodium sulfate, filtered and concentrated in vacuo. The crude product was purified by flash chromatography on silica gel (15% to 50% ethyl acetate in n-heptane) to yield the title compound as a colourless oil (60 mg, 95%), MS (ESI+): m/z=340.2 ([M+H]+).

Provenance & Evidence