N-环丙基-2-苯基乙酰胺

反应条件: temp:5.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Sodium hydride (60% in mineral oil, 706 mg, 17.65 mmol) was washed with dry ether (2×20 mL) and then suspended in dry THF (30 mL) and cooled with ice-water. Crude N-cyclopropyl-2-phenylacetamide from the last step in THF (5 mL) was added dropwise at 5° C. to the sodium hydride suspension. The reaction mixture was stirred at 5° C. for 20 min. A solution of propargyl bromide in toluene (80% wt., 2.68 mL, 24.06 mmol) was added dropwise with a syringe. The ice bath was removed and the mixture was stirred at room temperature overnight. The mixture was poured into ice-water (100 mL) and extracted with DCM (3×100 mL). The organic phases were combined and washed with brine (2×50 mL), dried with anhydrous MgSO4, filtered and evaporated to dryness, then purified by silica gel column chromatography, eluting with MeOH/DCM (0-2%) to give the title compound (2.05 g, 58.8% yield), LRMS ESI (M+H+) 214. The ice bath was removed the mixture was stirred at room temperature overnight The mixture was poured into ice-water (100 mL) extracted with DCM (3×100 mL) washed with brine (2×50 mL) dried with anhydrous MgSO4 filtered evaporated to dryness purified by silica gel column chromatography eluting with MeOH/DCM (0-2%)