Acetic Acid → Tert-butyl 4-oxo-3-(3-(tetrahydrofuran-2-yl)propanoyl)piperidine-1-carboxylate

Participants

Reaction Steps

Lithium bis(trimethylsilyl)amide (2.231 ml, 11.88 mmol) was added to a stirred solution of tert-butyl 4-oxopiperidine-1-carboxylate (1.127 g, 5.66 mmol) in toluene (3 mL) at 0° C. and the resulting mixture was stirred for 2 minutes. 1-(1H-Imidazol-1-yl)-3-(tetrahydrofuran-2-yl)propan-1-one (1.099 g, 5.66 mmol) in toluene (1 mL) was added and the reaction mixture was stirred for 5 minutes before it was quenched with acetic acid (0.972 ml, 16.97 mmol) in water (4 mL). The organic layer was separated and purified by silica flash chromatography using a gradient of ethyl acetate in heptane (0 to 40%) giving tert-butyl 4-oxo-3-(3-(tetrahydrofuran-2-yl)propanoyl)piperidine-1-carboxylate (0.717 g, 38.9%) as the product.

Provenance & Evidence