Synthesis and characterization of a cationic phthalimido-functionalized N-heterocyclic carbene complex of palladium(II) and its catalytic activity

Li Min Serena Goh, Manuel Peter Hogerl, Nadežda B. Jokic̈, Alexandrina D. Tanase, Bettina Bechlars, Walter Baratta, János Mínk, Fritz Kühn

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A cationic phthalimido-functionalized N-heterocyclic carbene (NHC) palladium(II) complex has been synthesized from [3-methyl-1-(2′- phthalimidoethyl)imidazolium] hexafluorophosphate ([NHCMe,PhtH] PF6) by transmetalation and isolated in 67 % yield. The title complex has been applied as catalyst in the Suzuki-Miyaura cross-coupling reaction under benign aqueous conditions. The catalyst is active without any observable initiation period. High average turnover frequencies (TOFs) of up to 55000 h-1 have been reached with catalyst concentrations as low as 0.01 mol-%. A cationic phthalimido-functionalized N-heterocyclic carbene (NHC) palladium(II) complex has been prepared in high yield. The complex was activated instantly, without an initiation period, in the Suzuki-Miyaura cross-coupling reaction under benign aqueous aerobic conditions. Turnover frequencies (TOFs) up to 55000 h-1, were achieved with 0.01 mol-% of the complex. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish (US)
Pages (from-to)1225-1230
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Volume2014
Issue number7
DOIs
StatePublished - Jan 29 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The Bayerische Forschungsstiftung is acknowledged for a Ph. D. grant to S. L. M. G., Wacker Insitut fur Silicium Chemie at TUM, Wacker AG is acknowledged for a Ph. D. grant to M. P. H., Universitat Bayern e. V. is acknowledged for a Ph. D. fellowship to N. B. J., and the Bavarian Elite Network NanoCat is acknowledged for a Ph. D. fellowship to A. D. T. The International Graduate School of Science and Engineering (IGSSE) and the Technische Universitat Munchen Graduate School are acknowledged for additional financial support.

ASJC Scopus subject areas

  • Inorganic Chemistry

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