Ag(I)-Catalyzed [3 + 2]-Annulation of Cyclopropenones and Formamides via C–C Bond Cleavage
作者:Jiang-Tao Ren、Jia-Xin Wang、Hu Tian、Jing-Lei Xu、Hong Hu、Muhammad Aslam、Meng Sun
DOI:10.1021/acs.orglett.8b02612
日期:2018.11.2
An unprecedented Ag-catalyzed [3 + 2]-annulation of cyclopropenones and DMF via C–C bond cleavage is disclosed. This protocol exhibited excellent chemo- and regio-selectivity, and tolerated various functional groups. More importantly, DMF served as the C═O bond in the cycloaddition reaction, providing an efficient way to construct γ-aminobutenolides. In addition, transesterification reaction occurred