Divergent C(sp<sup>2</sup>)–H arylation of heterocycles <i>via</i> organic photoredox catalysis
作者:Jie Ren、Chao Pi、Xiuling Cui、Yangjie Wu
DOI:10.1039/d1gc04825b
日期:——
key step in the syntheses of natural products, drugs, and functional materials. Herein, we describe an unprecedented photocatalytic direct C(sp2)–H arylation of heterocycles. Notably, hypervalent iodine(III) ylides (HVIs) were firstly employed as a general arylating reagent under mild and easily handled reaction conditions, in which aryl radicals were afforded from the HVIs through single electron transfer
将芳基部分引入杂环支架是合成天然产物、药物和功能材料的关键步骤。在此,我们描述了一种前所未有的光催化直接 C(sp 2 )-H 杂环芳基化。值得注意的是,高价碘(III)叶立德(HVI)首先在温和且易于处理的反应条件下用作通用芳基化试剂,其中芳基自由基是在有机物存在下通过单电子转移(SET)过程从 HVI 中获得的。染料作为光催化剂。在该转化中获得了广泛的底物范围和优异的官能团耐受性。同时,药物分子的高效后修饰证明了其实用性。