Potassium Carbonate → Ethyl 2-oxo-1-phenylpiperidine-4-carboxylate

Participants

Reaction Steps

Ethyl 2-oxopiperidine-4-carboxylate (0.50 g, 2.9 mmol), iodobenzene (0.77 g, 3.8 mmol, 1.3 equiv), copper(I) iodide (56 mg, 0.29 mmol, 0.1 equiv), 4,7-bis(methoxy)-1,10-phenanthroline (70 mg, 0109 mmol, 0.1 equiv) and potassium carbonate (0.40 g, 3.8 mmol, 1 equiv) were combined in dimethylsulfoxide (10 mL) and placed into a preheated oil bath at 100° C. for 120 hours. The mixture was cooled to ambient temperature, diluted with ethyl acetate (50 mL) and washed with water (2×25 mL) and once with brine (25 mL). The organic extract was dried with sodium sulfate, filtered and concentrated in vacuo, providing the titled compound.

Provenance & Evidence