Synthesis of Functionalized Imidazolium Salts via Iodine-Mediated Annulations of Enamines
作者:Biao Xia、Wenjun Chen、Qiongli Zhao、Wenquan Yu、Junbiao Chang
DOI:10.1021/acs.orglett.9b00541
日期:2019.4.19
A novel annulation reaction of two enamine molecules with iodine under basic conditions to form 4-functionalized imidazolium salts has been established. In this reaction, iodine acts as both an iodinating reagent and a Lewis acid catalyst. Features of this synthetic method include facilitative preparation of substrates, no use of transition metals, mild reaction conditions, simplicity of operation
建立了在碱性条件下两个烯胺分子与碘的新型环化反应,形成4-官能化的咪唑鎓盐。在该反应中,碘既充当碘化试剂又充当路易斯酸催化剂。这种合成方法的特点包括便于制备底物,不使用过渡金属,温和的反应条件,操作简便和克级合成。