Highly Active Pd(II) Catalysts withtrans-Bidentate Pyridine Ligands for the Heck Reaction
- 25 June 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 4 (15), 2545-2547
- https://doi.org/10.1021/ol026161k
Abstract
The air-, water-, and heat-stable palladium(II) complexes 2a and 2b are prepared by the reaction of palladium(II) salts with the new trans-bidentate nitrogen ligands, 1,2-bis(2-pyridylethynyl)benzenes. The structure of complex 2a has been confirmed by X-ray structure analysis. The complexes efficiently catalyze the Heck olefination of aryl iodides and provide a good yield under phosphine-free conditions. The reaction is very sensitive to the nature of the chelating ligand.Keywords
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