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

Participants

Reaction Conditions

Reaction Steps

Potassium carbonate was added to a mixture of azepan-3-yl-methanol (145) (0.032 g, 0.2485 mmol) in THF/H2O (2:1, 0.31 mL). The suspension was cooled to 0° C., and (benzyloxy)carbonyl chloride (0.071 mL, 0.497 mmol) was added dropwise. The reaction was allowed to warm to room temperature overnight, and was then concentrated in vacuo. CH2Cl2 and H2O were added. The organics were extracted, washed with brine, dried over sodium sulfate, filtered and concentrated in vacuo. The crude material was purified by automated silica gel chromatography with 75:25 Hexanes:EtOAc to obtain 3-Hydroxymethyl-azepan-1-carboxylic acid benzyl ester (146) in approximately 94% yield.

Provenance & Evidence