Formation of epoxides and N-arylaziridines via a simple Mg-Barbier reaction in DMF
作者:Sylvain Oudeyer、Eric Léonel、Jean Paul Paugam、Jean-Yves Nédélec
DOI:10.1016/j.tet.2013.12.016
日期:2014.1
The Mg-activation of benzal bromide 2b in DMF in the presence of carbonyl compounds 1 or imines 4 leads to epoxides 3 and N-arylaziridines 5, respectively, with acceptable isolated yields. It was found that DMF is likely involved in this process to form a nucleophilic intermediate by reaction with a first generated electrophilic carbene. Results obtained in this chemical approach are compared to those
在羰基化合物1或亚胺4的存在下,在DMF中苯甲酰溴2b的Mg活化分别产生环氧化物3和N-芳基氮丙啶5,并具有可接受的分离产率。已经发现,DMF可能参与该过程以通过与首先产生的亲电卡宾反应而形成亲核中间体。将该化学方法获得的结果与也在DMF中使用电化学活化获得的结果进行比较。