Benzyl chloroformate → Benzyl 4-benzoylpiperidine-1-carboxylate

Beteiligte Stoffe

Reaktionsschritte

To a stirring suspension of phenyl(piperidin-4-yl)methanone hydrochloride 86 (1.97 g, 8.73 mmol) and potassium carbonate (3.62 g, 26.2 mmol) in THF (40 mL) at 0° C. was added benzyl chloroformate (1.433 mL, 10.04 mmol) and the reaction mixture was allowed to slowly warm to room temperature and stirred for 2 h. The mixture was diluted with ethyl acetate, washed with brine, water, dried over Na2SO4, filtered and concentrated to afford compound 87 quantitative yield. LRMS (ESI): (calc) 323.39 (found) 324.31 (MH)+

Herkunft & Nachweise