Journal of Molecular Catalysis A-Chemical, Vol.220, No.2, 145-151, 2004
Application of chiral dipyridylmethane ligands in the enantioselective palladium-catalyzed allylic alkylation
New chiral C-1-symmetric dipyridylmethane ligands have been prepared from naturally occurring monoterpenes according to a method based on two consecutive constructions of the pyridine rings. These ligands have been assessed in the enantioselective palladium catalyzed allylic alkylation of 1,3-diphenylprop-2-enyl acetate with dimethylmalonate. Enantioselectivity up to 68% ee has been obtained. (C) 2004 Elsevier B.V. All rights reserved.
Keywords:chiral dipyridylmethane;nitrogen heterocycles;palladium complex;allylic alkylation;enantioselectivity