Hypervalent Iodine(III)‐Mediated Regioselective Cyanation of Quinoline
<i>N</i>
‐Oxides with Trimethylsilyl Cyanide
作者:Feng Xu、Yuqin Li、Xin Huang、Xinjie Fang、Zhuofei Li、Hongshuo Jiang、Jingyi Qiao、Wenyi Chu、Zhizhong Sun
DOI:10.1002/adsc.201801185
日期:2019.2
A regioselective cyanation of quinoline N‐oxides with trimethylsilyl cyanide was developed by using (Diacetoxyiodo) benzene (PIDA) as mediated hypervalentiodine(III) reagent under metal‐free and base‐free reaction conditions to obtain 2‐cyanoquinolines. The efficient PIDA reagent could play the role of an activator of the substrates and an accelerator of N−O bond cleavage. The reaction system featured
An atom economical method for the direct synthesis of quinoline derivatives from substituted o-nitrotoluenes
作者:Guiyan Liu、Maocong Yi、Lu Liu、Jingjing Wang、Jianhui Wang
DOI:10.1039/c4cc09358e
日期:——
one-pot procedure for the preparation of substitutedquinolines from substituted o-nitrotoluenes with electron-withdrawing groups and olefins (acrylic esters and acrylonitriles) using a cesium catalyst has been developed. A plausible [2+4] cycloaddition mechanism is proposed. This method uses nitroaromatic compounds as the starting materials to give quinolinederivatives in good to high yields under mild
Synthesis of Quinoline and 1,2,3,4-Tetrahydroquinoline Derivatives from Substituted<i>o</i>-Nitrotoluenes via Cesium-promoted [2 + 4] Cycloaddition
作者:Weijie Guo、Maocong Yi、Jianhui Wang、Guiyan Liu
DOI:10.1002/cjoc.201700150
日期:2017.10
the synthesis of quinoline and 1,2,3,4‐tetrahydroquinoline derivatives from o‐nitrotoluenes bearing electron‐withdrawing groups and olefins (acrylic esters, acrylonitriles, and methyl acrylates) via a base‐catalyzed [2 + 4] cycloaddition. This simple, rapid, and environment‐ friendly method provides a practical pathway for the synthesis of quinoline and 1,2,3,4‐tetrahydroquinoline derivatives. The