Pd(II)-catalyzed intramolecular Wacker-typecyclizations of o-trisubstituted allylphenols were studied. The chelation-induced axially chiral catalytic system, Pd(CF3COO)2-8 (1:1 molar ratio), showed excellent catalytic activities and enantioselectivities in the Wacker-typecyclizations of o-trisubstituted allylphenols with up to 94% ee.
Palladium-Catalyzed Oxidative Wacker Cyclizations in Nonpolar Organic Solvents with Molecular Oxygen: A Stepping Stone to Asymmetric Aerobic Cyclizations
作者:Raissa M. Trend、Yeeman K. Ramtohul、Eric M. Ferreira、Brian M. Stoltz