Stability of Supported Pincer Complex-Based Catalysts in Heck Catalysis

William W. Sommer, Christopher C. Jones, Marcus Weck

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Several studies question the stability of palladated pincer complexes under Heck catalysis conditions. Through a series of poisoning tests, kinetic and spectroscopic studies, and computational experiments, these studies prove that any supported as well as small molecule Pd-pincer complexes decompose during the Heck catalysis. Furthermore, no experimental proof could be obtained with regard to the proposed Pd(II)/Pd(IV) catalytic cycle, which is a requirement for the Heck promoted by stable Pd(II) pincer complexes. The decomposition results may be applicable to other Pd-coupling chemistry because they follow similar catalytic cycles. Despite the detailed kinetic and poisoning studies, recent literature still show a plethora of articles that use palladated pincer complexes as catalysts for coupling chemistry where no studies to investigate the stability of the Pd pincer complexes are carried out.

Original languageEnglish (US)
Title of host publicationThe Chemistry of Pincer Compounds
PublisherElsevier
Pages385-397
Number of pages13
ISBN (Print)9780444531384
DOIs
StatePublished - 2007

ASJC Scopus subject areas

  • Chemical Engineering(all)

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    Sommer, W. W., Jones, C. C., & Weck, M. (2007). Stability of Supported Pincer Complex-Based Catalysts in Heck Catalysis. In The Chemistry of Pincer Compounds (pp. 385-397). Elsevier. https://doi.org/10.1016/B978-044453138-4/50018-0