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.
Allyl-aryl coupling between allylic acetates and arylboronicacids took place in the presence of catalytic amounts of Pd(OAc)(2), 1,10-phenanthroline, and AgSbF(6) with high gamma-selectivity and E/Z-selectivity. The reaction of an optically active allylic acetates with an alpha-stereogenic center proceeded with excellent alpha-to-gamma chirality transfer with syn-selectivity and gave the corresponding