反应详情

To a stirred solution of (9H-fluoren-9-yl)methyl 4-(chlorocarbonyl)piperidine-1-carboxylate (5 g, 13.6 mmol) in toluene at 0° C. was added TMS-diazomethane (30 mL). This reaction mixture was stirred at RT for 16 h. The reaction mixture was concentrated under reduced pressure to afford of (9H-fluoren-9-yl)methyl 4-(diazoacetyl)piperidine-1-carboxylate (5 g, 98%) as dark brown liquid.

1. concentrationThe reaction mixture was concentrated under reduced pressure