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
The cyanation reaction of methylheteroarenes with acetyl chloride and sodium nitrite via the radical process in high yields is reported. According to the control experiments, the reaction mechanism underwent radical progress. It is very useful in the pharmacy industry due to its metal-free and easy treatment conditions.