Sodium Carbonate → 7-Oxa-3-azabicyclo[4.1.0]heptan-3-yl(phenyl)methanone

Participants

Reaction Steps

Into a solution of 10 (2.27 g, 12.1 mmol) in CH2Cl2 (20 mL), a solution of 3-chloroperoxybenzoic acid (5.43 g, 77% pure, 24.3 mmol) in CH2Cl2 (40 mL) was added dropwise at 0° C. The reaction mixture was stirred at room temperature for 5 hrs. After the reaction was complete as determined by TLC (hexane/ethyl acetate, 1/1, v/v), saturated Na2CO3 solution (50 mL) was added into the reaction vial slowly with stirring. The reaction mixture was stirred for 30 min. The organic layer was washed with saturated Na2CO3 solution (50 mL×3), brine solution (50 mL), dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified by silica gel column chromatograph using hexane/ethyl acetate (3/1, v/v) as the mobile phase to afford the product as a sticky oil (1.54 g, 62%). 1H NMR (CDCl3): δ 2.04-2.18 (m, 2H), 3.09-4.40 (m, 6H), 7.28-7.47 (m, 5H).

Provenance & Evidence