AgNO<sub>3</sub> as Nitrogen Source for Cu-Catalyzed Cyclization of Oximes with Isocyanates: A Facile Route to <i>N</i>-2-Aryl-1,2,3-triazoles
作者:Jingwen Liang、Yingqi Rao、Weidong Zhu、Tingting Wen、Junjie Huang、Zhichao Chen、Lu Chen、Yibiao Li、Xiuwen Chen、Zhongzhi Zhu
DOI:10.1021/acs.orglett.1c02323
日期:2021.9.17
A versatile copper-catalyzed [3 + 1 + 1] annulation of oximes and isocyanates with AgNO3 is described. In this conversion, AgNO3 and isocyanates instead of conventional azide or diazonium reagents were used as the nitrogen source. This three-component transformation was achieved by cleaving N–O/C–H/C–N bonds and building C═N/N–N bonds, which provides a strategy to prepare N-2-aryl-1,2,3-triazoles with
描述了一种多功能的铜催化 [3 + 1 + 1] 肟和异氰酸酯与 AgNO 3的环化。在该转化中,AgNO 3和异氰酸酯代替传统的叠氮化物或重氮试剂被用作氮源。这种三组分转化是通过裂解 N-O/C-H/C-N 键和构建 C=N/N-N 键来实现的,这为制备N -2-芳基-1,2,3-提供了一种策略三唑类具有良好的底物和功能相容性。