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Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
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Cooperative bond activation reactions with carbene complexes
Kai-Stephan Feichtner1, Viktoria H Gessner
1Inorganic Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitaetsstrasse 150, 44801 Bochum, Germany. viktoria.gessner@rub.de.
Chemical Communications (Cambridge, England)
|May 9, 2018
Summary
Metal-ligand cooperation utilizes both metal and ligand for bond activation, a key advance over traditional methods. Carbene ligands, particularly pincer and anion-stabilized types, show promise in catalysis.
Area of Science:
- Organometallic Chemistry
- Catalysis
- Bond Activation
Background:
- Metal-ligand cooperation is a novel approach where both metal and ligand participate in chemical transformations.
- This contrasts with classical activation reactions that occur solely at the metal center.
- Various cooperating ligand systems have been developed for catalytic applications.
Purpose of the Study:
- To review the application of carbene ligands in metal-ligand cooperative bond activation reactions.
- To highlight specific carbene complexes, including mid and late transition metal species with pincer ligands and those with anion-stabilizing substituents.
- To discuss their activity and initial catalytic applications.
Main Methods:
- Focus on carbene complexes featuring PCcarbeneP pincer ligands.
- Investigation of carbene complexes with strong anion-stabilizing α-substituents.
- Analysis of their role in bond activation reactions.
Main Results:
- Demonstrated activity of these carbene systems in diverse bond activation reactions.
- Successful application in initial catalytic processes.
- Highlighting the versatility of carbene ligands in cooperative chemistry.
Conclusions:
- Carbene ligands are effective in metal-cooperative bond activation.
- Specific systems, like pincer and anion-stabilized carbene complexes, are promising for catalysis.
- This approach expands the scope of bond activation and catalytic transformations.
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