Oxidative Photocatalytic Homo- and Cross-Coupling of Phenols: Nonenzymatic, Catalytic Method for Coupling Tyrosine
作者:Kyle A. Niederer、Philip H. Gilmartin、Marisa C. Kozlowski
DOI:10.1021/acscatal.0c04515
日期:2020.12.18
An oxidative photocatalytic method for phenol–phenol homo- and cross-coupling is described, and isolated yields of 16–97% are obtained. Measured oxidation potentials and computed nucleophilicity parameters support a mechanism of nucleophilic attack of one partner onto the oxidized neutral radical form of the other partner. Our understanding of this model permitted the development of cross-coupling reactions
Anodic Phenol-Arene Cross-Coupling Reaction on Boron-Doped Diamond Electrodes
作者:Axel Kirste、Gregor Schnakenburg、Florian Stecker、Andreas Fischer、Siegfried R. Waldvogel
DOI:10.1002/anie.200904763
日期:2010.1.25
Particularly sustainable: The anodiccross‐couplingreaction between phenols and arenes can be performed on boron‐doped diamond electrodes. The arylated products are formed directly and obtained, in some cases, with high selectivity. Since only hydrogen atoms are sacrificed in the course of reaction this methodology opens the door to a novel concept for biaryl formation.