Methanol → HCID 60128538, compound

Participants

Reaction Steps

Benzyl 6-oxa-3-azabicyclo[3.1.0]hexane-3-carboxylate (21.0 g, 96 mmol) was dissolved in MeOH (200 mL). Added sulfuric acid (3.64 g, 37.1 mmol) dropwise. After ˜3 hrs the reaction was concentrated and the residue was diluted with ethyl acetate and neutralized with 1N aq. NaOH. The organic extract was dried (Na2SO4) and concentrated. The reaction product was purified by silica gel column chromatography eluting with Hexane/Acetone mixtures to give (+/−)-Trans-benzyl 3-hydroxy-4-methoxypyrrolidine-1-carboxylate (16.8 g, 66.9 mmol, 69.8% yield) LCMS:M+1=252, Rt=1.42 min.

Provenance & Evidence