Switchable Direct Oxygenative Arylation of C(sp<sup>3</sup>)–H Bonds via Electrophotocatalysis
作者:Yan Zhang、Xiang Sun、Ji-Hu Su、Tong Li、Chengbin Du、Kuiliang Li、Qi Sun、Zhenggen Zha、Zhiyong Wang
DOI:10.1021/acs.orglett.3c01751
日期:2023.7.14
A metal-free electrophotochemical C(sp3)-H arylation was developed under mild conditions. This method enables a switchable synthesis of diaryl alcohols and diaryl alkanes from inactive benzylic carbons. More importantly, a cheap and safe mediator N-chlorosuccinimide (NCS) was developed, which was employed for the hydrogen atom transfer (HAT) process of the benzylic C–H bond. In addition, this active
在温和条件下开发了无金属的电化学C(sp 3 )-H芳基化反应。该方法能够从不活泼的苄基碳可转换地合成二芳基醇和二芳基烷烃。更重要的是,开发了一种廉价且安全的介体N-氯代琥珀酰亚胺(NCS),用于苄基C-H键的氢原子转移(HAT)过程。此外,该活性自由基被电子顺磁共振(EPR)捕获并识别。