Sodium Hydroxide → HCID 86746064, compound

Participants

Reaction Conditions

Reaction Steps

A 15.00 g (74 mmol) sample of the 3-pyrroline benzyl carbamate from Step 1a was dissolved in 200 mL of methylene chloride and cooled to 0° C. A 46.3 g (267 mmol) sample of m-chloroperbenzoic acid was dissolved in 500 mL of methylene chloride and added dropwise with stirring over a period of 1 hours. The flask was then equipped with a condenser and the temperature was increased to 45° C. for 18 hours. The solution was cooled to room temperature, 2 g of sodium bisulfite was added, the solution was stirred for 30 min then poured into 1 L of 1M NaOH. and washed in a separatory funnel. The methylene chloride was then washed with 2×500 mL portions of potassium carbonate solution, dried over anhydrous sodium sulfate, and the solvent was filtered and removed by evaporation under vacuum. to afford 14.26 g of 3,4-epoxypyrrolidine benzyl carbamate, MS (DCl) M/Z 220 (M+H), 237 (M+NH4); NMR (CDCl3) d 3.39 (ddd, 2H, J=6.0, 1.5, 13.5 Hz), 3.87 (dd, 2H, J=12, 15 Hz), 5.12 (d, 2, J=3 Hz), 7.35 (m, 5H).

Provenance & Evidence