Sodium Hydroxide → HCID 67663767, compound

Participants

Reaction Steps

237 mg of cis-N-benzyloxycarbonylpyrrolidine-3,4-diol, 1 ml of t-butyl bromoacetate and 100 mg of tetrabutyl-ammonium hydrogen sulphate in 10 ml of toluene are stirred with 10 ml of 50% sodium hydroxide solution under phase transfer conditions. The organic phase is washed with water and evaporated. Chromatography of the evaporation residue on silica gel with ethyl acetate/hexane (1:3) gives 354 mg of benzyl cis-3,4-bis-t-butoxycarbonylmethoxy-pyrrolidine-1-carboxylate. MS: 354 (M-111).

Provenance & Evidence