反应详情

A solution of the above ester (13.9 g, 23.9 mmol), N-propargylmorpholine (5.98 g, 47.7 mmol) and N,N-diisopropylamine (11.35 g, 112 mmol) in tetrahydrofuran (250 mL) was cooled down and degassed; bis(triphenylphosphine)palladium(II) dichloride (0.84 g, 1.19 mmol) and copper(I) iodide (0.365 g, 1.9 mmol) were added. The reaction mixture was stirred at ambient temperature for 18 h. The mixture was evaporated in vacuo and the residue was purified by column chromatography (silica gel Fluka 60, hexanes/ethyl acetate/methanol 64:32:4) yielding the title compound as a white crystals.

1. customdegassed
2. customThe mixture was evaporated in vacuo
3. customthe residue was purified by column chromatography (silica gel Fluka 60, hexanes/ethyl acetate/methanol 64:32:4)