Visible-Light-Triggered Directly Reductive Arylation of Carbonyl/Iminyl Derivatives through Photocatalytic PCET
作者:Ming Chen、Xinxin Zhao、Chao Yang、Wujiong Xia
DOI:10.1021/acs.orglett.7b01677
日期:2017.7.21
cross-coupling strategy that enables the direct arylation of carbonyl/iminyl derivatives in the presence of Et3N has been realized. Such an atom-economical protocol furnishes a broad scope of arylation products such as secondary/tertiary alcohols and amines via a PCET process that facilitates the challenging reduction of C═X (X = O, N). Mechanisticinvestigation indicates two photocatalytic redox cycles
The invention relates to new .alpha.-substituted benzhydrols and pharmaceutically acceptable acid addition salts or quaternary ammonium salts thereof with enzyme promoting or inhibiting effects;
该发明涉及具有酶促进或抑制作用的新的α-取代苯基甘醇和药用可接受的酸盐或季铵盐。
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