DBU-Promoted Cascade Annulation of Nitroarylcyclopropane-1,1-dicarbonitriles and 3-Aryl-2-cyanoacrylates: An Access to Highly Functionalized Cyclopenta[<i>b</i>]furan Derivatives
作者:Siran Qian、Zengyang Xie、Jiaming Liu、Mingshuang Li、Shan Wang、Naili Luo、Cunde Wang
DOI:10.1021/acs.joc.8b02325
日期:2018.12.7
A DBU-promoted cascade annulation of nitroarylcyclopropane-1,1-dicarbonitriles and 3-aryl-2-cyanoacrylates for the synthesis of highly functionalized cyclopenta[b]furan derivatives is described. High stereoselectivity, fused cyclopentane and furan can be established in a single reaction, highlighting the high efficiency and step-economy of this protocol. This reaction offers a novel and straightforward