m-Chloroperbenzoic acid → tert-Butyl 2-pyridylmethylcarbamate N-oxide

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Reaction Steps

tert-Butyl 2-pyridylmethylcarbamate (11.4 g, 54 mmol) and 3-chloroperbenzoic acid (77%, 5.9 g, 71 mmol) were dissolved in ethyl acetate (150 ml), and the mixture was stirred at room temperature for 15 hrs. The solvent was evaporated, and the residue was subjected to a silica gel column chromatography. The fractions eluted with methanol-ethyl acetate (1:5, v/v) were collected and concentrated to give the titled compound (11.1 g, 90%).

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