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Updated: May 14, 2026

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Continuous synthesis and use of N-heterocyclic carbene copper(I) complexes from insoluble Cu2O
Suzanne M Opalka1, Jin Kyoon Park, Ashley R Longstreet
1Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA.
Abstract:
It is demonstrated that homogeneous N-heterocyclic carbene-copper(I)-chloride complexes can be prepared continuously by flowing NHC precursors through a packed bed of solid Cu(2)O suspended in molecular sieves. The method enables the synthesis of a wide range of complexes including those that are challenging to prepare using standard approaches. Our strategy enables both sustained output of complex production for long-term catalytic reactions (greater than 5 h) and for generation of gram quantities for storage (greater than 1 g of complex in ~16 min).
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