Electrochemical synthesis of palladium N-heterocyclic carbene (NHC) complexes
A novel electrochemical method for the preparation of Pd-NHC (N-heterocyclic carbene) catalysts has been developed. Unlike previously reported procedures, the present method does not employ soluble sacrificial anodes as a metal source but makes use of well-defined Pd-containing precursors instead. Importantly, oxygen was observed to play a key role acting as an electrogenerated base. A superoxide anion is formed <i>via</i> the reduction of oxygen at the cathode. The subsequent deprotonation of the imidazolium salts and reaction of NHCs with the Pd species occurs either in a sequential or in a concerted manner resulting in the formation of the final organopalladium product.
Authors
- Catherine S. J. Cazin (ORCID: https://orcid.org/0000-0002-9094-8131)
- Francis Bru (ORCID: https://orcid.org/0000-0002-4283-2433)
- Maxime R. Vitale (ORCID: https://orcid.org/0000-0002-6740-2472)
- Laurence Grimaud (ORCID: https://orcid.org/0000-0003-3904-1822)
- Roman V. Larkovich (ORCID: https://orcid.org/0000-0002-6907-7466)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université Paris Sciences et Lettres (FR)
- École Normale Supérieure - PSL (FR)
- Ghent University (BE)
- Sorbonne Université (FR)
- Laboratoire des Biomolécules (FR)
Publication Details
- Journal
- Dalton Transactions
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5dt00575b
- Citations
- 1
- Primary Topic
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Type
- article
- Field-Weighted Citation Impact
- 0.94
Funders
- École Normale Supérieure
- Fonds Wetenschappelijk Onderzoek
- Centre National de la Recherche Scientifique
- Bijzonder Onderzoeksfonds UGent