Direct Acyl Radical Addition to 2<i>H</i>-Indazoles Using Ag-Catalyzed Decarboxylative Cross-Coupling of α-Keto Acids
作者:Ganganna Bogonda、Hun Young Kim、Kyungsoo Oh
DOI:10.1021/acs.orglett.8b00920
日期:2018.5.4
A direct acyl radical addition to 2H-indazoles has been achieved for the first time, where the less-aromatic quinonoid 2H-indazoles readily accepted radical species to the C-3 position. Motivated by the lack of direct acylation strategy for 2H-indazoles, the current method utilizes the radical acceptability of 2H-indazoles, discovering an ambient temperature reaction to provide facile access to a diverse
首次实现了直接向2 H-吲唑添加酰基基团,其中低芳族醌2 H-吲唑易于将自由基种类接受到C-3位置。由于缺乏对2 H-吲唑的直接酰化策略,目前的方法利用了2 H-吲唑的自由基可接受性,发现一种环境温度反应可轻松地获得各种类型的3-酰基2 H-吲唑。在25%–83%的收益率上实现了结构多样化的三个方面。