N-bromobutanimide → 1-Benzyl-2-methyl-5-bromo-1H-imidazole

関与物質

反応手順

Add N-bromosuccinimide (7.85 g, 44 mmol) to a solution of 1-benzyl-2-methyl-1H-imidazole (8.0 g, 46 mmol) in chloroform (200 mL) and stir for 6 hours. Wash reaction with saturated aqueous sodium hydrogen carbonate and saturated aqueous sodium chloride, dry over magnesium sulfate, and filter through 2″ pad of silica gel. Concentrate filtrate reduced pressure. Suspend residue in diethyl ether (600 mL), heat to reflux and filter hot Concentrate ether filtrate under reduced pressure to give 9.3 g (37 mmol) of the desired compound as a tan solid.

情報源と証拠