m-Chloroperbenzoic acid → 4-[4-(4-(6-Chloronaphthalene-2-sulfonyl)piperazine-1-carbonyl)phenyl]pyridine 1-oxide

Participants

Reaction Steps

To a solution of 1-(6-chloronaphthalene-2-sulfonyl)-4-[4-(4-pyridyl)benzoyl]piperazine (200 mg) in dichloromethane (25 ml) was added m-chloroperbenzoic acid (140 mg) and the solution was stirred at room temperature for 2 hours. The reaction solution was diluted with dichloromethane, washed with 1 N sodium hydroxide solution and sodium chloride solution, dried and concentrated. The residue was crystallized with dichloromethane/hexane to give a colorless solid of the title compound (188 mg).

Provenance & Evidence