Metal-free regioselective C-H amination for the synthesis of pyrazole-containing 2H-indazoles

被引:17
作者
Wang, Kai [1 ]
Wei, Tingting [2 ]
Zhang, Yujia [2 ]
Hou, Jiahao [2 ]
Bai, Renren [2 ]
Xie, Yuanyuan [1 ,2 ]
机构
[1] Zhejiang Univ Technol, Collaborat Innovat Ctr Yangtze River Delta Reg Gr, Hangzhou, Peoples R China
[2] Zhejiang Univ Technol, Coll Pharmaceut Sci, Hangzhou, Peoples R China
关键词
D O I
10.1039/d0ob02485f
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A general and practical regioselective approach for the C-H amination of 2H-indazoles under transition-metal-free conditions was developed. A series of substrates were tested showing eminent functional group tolerance and affording the C-N functionalization products in good to excellent yields. Mechanism studies revealed that a radical process was involved in this transformation.
引用
收藏
页码:1787 / 1794
页数:8
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