Acetic Anhydride → HCID 15136297, compound

Participants

Reaction Steps

A solution of benzyl 1-azabicyclo[3.2.0]heptan-3,7-dione-2-carboxylate (20 mg) in anhydrous pyridine (200 μl) and Ac2O (100 μl) is kept at 0° C. for 8 hrs. The mixture is evaporated in vacuo and the residue dissolved in EtOAc. This solution is washed with pH 2 phosphate buffer, 5% NaHCO3, and brine, dried with MgSO4, filtered, and evaporated i.v. to provide benzyl 3-acetoxy-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate. By substituting Ac2O with ##STR50## in Method B, various 3-acyloxy derivatives are obtained.

Provenance & Evidence