Insights into the Heck Reaction with PCP Pincer Palladium(II) Complexes
- 24 April 2004
- journal article
- research article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 6 (13), 2125-2128
- https://doi.org/10.1021/ol049430a
Abstract
The Heck reaction of phenyl halides with styrene using a series of related PCP pincer palladium(II) complexes was studied in order to evaluate the effect of ligand structure and electronics on the catalytic activity and to investigate the nature of the catalyst species. We suggest these pincer complexes are precatalysts for highly active forms of metallic palladium. This conclusion is based on kinetic studies (induction periods, sigmoidal kinetics), Hg drop tests, quantitative poisoning experiments, and NMR studies.Keywords
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