Acetyl chloride → 1-Acetyl-4-phenylimidazole

Participants

Reaction Steps

To a solution of 4-phenylimidazole in 40 ml of tetrahydrofuran was added portionwise 1.66 g of 50% sodium hydride. After stirring for 20 minutes, 2.46 ml of acetyl chloride was added over 10 minutes and the reaction mixture allowed to stir overnight at room temperature. The reaction was filtered and the filtrate concentrated to give 4 g of crude product which was purified by chromatographing on 150 g of silica gel using 5% methanol in chloroform as eluent, 2.88 g.

Provenance & Evidence