Direct C3 Carbamoylation of 2H-Indazoles

被引:16
作者
Bhat, Vighneshwar Shridhar [1 ]
Lee, Anna [1 ]
机构
[1] Jeonbuk Natl Univ, Dept Chem, Jeonju 54896, South Korea
基金
新加坡国家研究基金会;
关键词
Carbamoylation; 2H-Indazoles; Minisci reaction; Radical reaction; Synthetic methods; PHOTOREDOX CATALYSIS; INDAZOLES; FUNCTIONALIZATION; DERIVATIVES; INHIBITORS; RADICALS; DESIGN; LIGHT;
D O I
10.1002/ejoc.202100461
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
We developed a novel method for direct C3 carbamoylation of 2H-indazoles using oxamic acids as carbamoyl radical sources. In the presence of ammonium persulfate, carbamoyl radicals were generated from oxamic acids, then used for further reactions with 2H-indazoles to afford the desired products. The reaction proceeds under metal- and catalyst-free conditions. This simple process allows for the efficient synthesis of C3 carbamoylated 2H-indazoles, which are important scaffolds in organic synthesis.
引用
收藏
页码:3382 / 3385
页数:4
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