Synthesis, Structural Characterization and Catalytic Application of Ferrocenyl Based Bis(pyrazolyl) Palladium
Sushanta Kumar Meher1, Basava Punna Rao Aradhyula1, Venkateswara Rao Velpuri1,2
1School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, an OCC of Homi Bhabha National Institute, Bhubaneswar, Odisha, 752050, India.
New ferrocenyl-based palladium complexes catalyze cross-coupling reactions. These novel catalysts demonstrate broad substrate scope and superior activity compared to traditional palladium-phosphine systems in coupling aryl bromides with triarylbismuthanes.
Area of Science:
- Organometallic Chemistry
- Catalysis
- Synthetic Organic Chemistry
Background:
- Palladium complexes are crucial catalysts in cross-coupling reactions.
- Ferrocene-containing ligands offer unique electronic and steric properties for catalyst design.
- Triarylbismuthanes represent an emerging class of coupling partners in organic synthesis.
Purpose of the Study:
- To synthesize novel ferrocenyl-based bis(pyrazolyl) palladium complexes.
- To evaluate the catalytic performance of these complexes in cross-coupling reactions.
- To compare their efficacy against established palladium-phosphine catalytic systems.
Main Methods:
- Synthesis of ferrocenyl-based bis(pyrazolyl) palladium complexes.
- Catalytic evaluation using cross-coupling reactions between triarylbismuthanes and aryl bromides.
- Comparative analysis of catalytic activity and substrate scope.
Main Results:
- Successful synthesis of the target ferrocenyl-based palladium complexes.
- Demonstrated catalytic utility in the cross-coupling of triarylbismuthanes and aryl bromides.
- Exhibited a wide substrate scope for both coupling partners.
- Showcased superior catalytic activity compared to conventional palladium-phosphine systems.
Conclusions:
- Ferrocenyl-based bis(pyrazolyl) palladium complexes are effective catalysts for cross-coupling.
- This catalytic system offers advantages in terms of substrate scope and activity.
- Provides a promising alternative to existing palladium-phosphine catalysts for these transformations.
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