A Robust and Efficient Catalyst Possessing an Electron-Deficient Ligand for the Palladium-Catalyzed Direct Arylation of Heteroarenes
作者:Alexandra Jakab、Zoltán Dalicsek、Tibor Soós
DOI:10.1002/ejoc.201402586
日期:2015.1
The exploration of the directarylation capacity of a unique, thermally stable, and air-stable Pd0–phosphine catalyst is reported. Besides decisively contributing to catalyst robustness, the electron-deficient trifluoromethyl-substituted triphenylphosphine ligands make the palladium center more electron-deficient and accelerate the directarylation step. The combination of only 0.5–2 mol-% of the catalyst