m-Chloroperbenzoic acid → HCID 135833421, compound

Participants

Reaction Steps

To a solution of 1.00 g of methyl 1,4-dihydro-2,6-dimethyl-3-(3-benzylthiomethyl-1,2,4-oxadiazol-5-yl)-4-(3-nitrophenyl)pyridine-5-carboxylate in 50 ml of chloroform was added 0.47 g of m-chloroperoxybenzoic acid. After the mixture was stirred at room temperature for 3 hours, the aqueous sodium bicarbonate was added and the stirring was continued for a while. The chloroform layer was separated, washed, dried over magnesium sulfate and evaporated in vacuo. The residue was chromatographed on silica gel using chloroform-methanol (30:1) as eluent to give 980 mg of methyl 1,4-dihydro-2,6-dimethyl-3-(3-benzylsulfinylmethyl-1,2,4-oxadiazol-5-yl)-4-(3-nitrophenyl)pyridine-5-carboxylate, IR νmaxneat cm-1 : 3290, 3210, 1680, 1645, 1520, 1490, 1230.

Provenance & Evidence