para-Selective, Direct C(sp<sup>2</sup>)–H Alkylation of Electron-Deficient Arenes by the Electroreduction Process
作者:Pufan Ni、Lei Yang、Jiasheng Yang、Ruihua Cheng、Weiping Zhu、Yueyue Ma、Jinxing Ye
DOI:10.1021/acs.joc.2c02412
日期:2023.5.5
para-selective C(sp2)–H alkylation of electron-deficient arenes based on the electroreduction-enabled radical addition of alkyl bromides has been developed under mild conditions. In the absence of any metals and redox agents, the simple electrolysis system tolerates a variety of primary, secondary, and tertiary alkyl bromides and behaves as an important complement to the directed alkylation of the C(sp2)–H bond
已经在温和条件下开发了基于电还原启用的烷基溴自由基加成的缺电子芳烃的直接对位选择性 C(sp 2 )–H 烷基化。在没有任何金属和氧化还原剂的情况下,简单的电解系统可以耐受多种伯、仲和叔烷基溴化物,并且可以作为 C(sp 2 )–H 键和经典 Friedel 的定向烷基化的重要补充-Crafts 烷基化。这种电还原过程为缺电子芳烃提供了一种更直接、对环境无害且有效的烷基化方法。