Reactions between acyclic (E)-allylic acetates and arylboronic acids in the presence of a palladium catalyst prepared from Pd(OAc)(2), phenanthroline (or bipyridine), and AgSbF(6) (1:1.2:1) proceeded with excellent gamma-selectivity to afford allyl-aryl coupling products with E-configuration. The reactions of alpha-chiral allylic acetates took place with excellent alpha-to-gamma chirality transfer
Sulfonamidoquinoline/Palladium(II)-Dimer Complex As a Catalyst Precursor for Palladium-Catalyzed γ-Selective and Stereospecific Allyl-Aryl Coupling Reaction between Allylic Acetates and Arylboronic Acids
作者:Yusuke Makida、Hirohisa Ohmiya、Masaya Sawamura
DOI:10.1002/asia.201000721
日期:2011.2.1
On neutral territory: A neutral palladium(II)‐dimer catalyst system incorporating anionic sulfonamidoquinoline ligands is effective for the γ‐selective and stereospecific allyl–aryl coupling between acyclic (E)‐allylic acetates and arylboronic acids.