Benzyl chloroformate → Benzyl 3-(hydroxymethyl)piperidine-1-carboxylate

Participants

Reaction Steps

3-Piperidinemethanol (3.59 g, 31.2 mmol) in 1,4-dioxane (8 mL) was mixed with potassium carbonate (4.55 g, 33.0 mmol), 1 M aqueous sodium hydroxide (2 mL) and benzyl chloroformate (5.20 mL, 36.4 mmol) under cooling with ice and stirred at room temperature for one day. After addition of water, the reaction mixture was extracted with ethyl acetate, and the organic layer was washed with saturated aqueous potassium hydrogen sulfate and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (hexane/ethyl acetate=1/1 (v/v)) to give the title compound as a colorless oil (6.41 g, yield 83%).

Provenance & Evidence