Palladium-catalyzed C–H arylation using aryltrifluoroborates in conjunction with a MnIII oxidant under mild conditions
摘要:
This paper describes the development of a mild Pd-catalyzed C-H arylation reaction using potassium aryltrifluoroborates in conjunction with Mn(OAc)3 as the oxidant. The scope of this transformation is explored with a variety of different aryltrifluoroborates and arylpyridine substrates. Preliminary mechanistic studies suggest that the reaction proceeds via a high-valent Pd mechanism with C-H activation occurring at or before the rate determining step. (C) 2013 Elsevier Ltd. All rights reserved.
<i>Ortho</i> C–H arylation of arenes at room temperature using visible light ruthenium C–H activation
作者:Arunachalam Sagadevan、Anastasios Charitou、Fen Wang、Maria Ivanova、Martin Vuagnat、Michael F. Greaney
DOI:10.1039/d0sc01289k
日期:——
A ruthenium-catalyzedortho C–H arylation process is described using visible light. Using the readily available catalyst [RuCl2(p-cymene)]2, visible light irradiation was found to enable arylation of 2-aryl-pyridines at room temperature for a range of aryl bromides and iodides.