m-Chloroperbenzoic acid → 5-(Oxiran-2-yl)-2,1,3-benzoxadiazole

Participants

Reaction Steps

To a solution of 5-ethenyl-2,1,3-benzoxadiazole (1.80 g, 12.3 mmol) in DCM (20 mL) was slowly added m-CPBA (3.8 g, 22 mmol) at 0° C. The flask was warmed to room temperature; the mixture was then stirred for 12 hours. TLC as well as LC indicated that reaction had gone to completion. The mixture was washed with aqueous Na2S2O3, NaHCO3, and water. The organic layers was washed with brine and then concentrated. The residue was purified over silica gel to afford the title compound.

Provenance & Evidence