Aziridination of α,β-unsaturated esters by (ethoxycarbonyl)nitrene

Article abstract of DOI:10.1016/0040-4039(96)00681-8

The reaction of α,β-unsaturated esters with (ethoxycarbonyl)nitrene, generated by α-elimination of NsONHCO₂Et using CaO as a base in heterogeneous phase, allowed the preparation of aziridine-1,2-dicarboxylates (2a-e) in good isolated yields (57-72%). The same reaction does not take place using triethylamine instead of CaO, in homogeneous conditions.