作者:Monica Carducci、Stefania Fioravanti、M.Antonietta Loreto、Lucio Pellacani、Paolo A. Tardella
DOI:10.1016/0040-4039(96)00681-8
日期:1996.5
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.
α,β-不饱和酯与(乙氧基羰基)硝烯的反应,是通过在异相中以CaO为碱,通过NsONHCO 2 Et的α消除反应而生成的,可在其中制备氮丙啶1,2,2-二羧酸酯(2a-e)良好的孤立产量(57–72%)。在均匀条件下,使用三乙胺代替CaO不会发生相同的反应。