Highly active NHC–Pd(ii) complexes for cross coupling of aryl chlorides and arylboronic acids: an investigation of the effect of remote bulky groups†
Abstract
A series of palladium(II) complexes bearing remote bulky ligands were synthesized and characterized. Their catalytic activity for Suzuki–Miyaura cross-coupling reactions and the effect of remote bulky groups were investigated. These new palladium complexes are highly efficient for the Suzuki–Miyaura cross-coupling reactions of aryl chlorides and arylboronic acids with low catalyst loadings (0.05 mol%) at room temperature in air.