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Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
Published on: February 19, 2018
Well-Defined Nickel Precatalysts: Form, Function, and Application
Morgan E John1, George A Koutsantonis1, Reto Dorta1
1School of Molecular Sciences, The University of Western Australia (M310), Crawley, WA, Australia.
Nickel precatalysts are emerging as powerful alternatives to palladium in cross-coupling reactions for pharmaceuticals and agrochemicals. This review guides selecting nickel precatalysts for diverse synthetic applications.
Area of Science:
- Organic Chemistry
- Catalysis
- Green Chemistry
Background:
- Cross-coupling reactions are vital for synthesizing pharmaceuticals, fine chemicals, and agrochemicals.
- Palladium precatalysts have traditionally dominated these reactions.
- Growing interest exists in using Earth-abundant metals (EAMs), especially nickel, as sustainable alternatives.
Purpose of the Study:
- To provide guidance on selecting nickel precatalysts for specific synthetic applications.
- To highlight the advantages of nickel precatalysts in cross-coupling chemistry.
- To discuss key properties for optimizing nickel-catalyzed reactions.
Main Methods:
- Review of recent literature on nickel precatalysts in cross-coupling.
- Analysis of substrate scope, active species, and reaction mechanisms.
- Discussion of practical considerations for catalyst selection and development.
Main Results:
- Nickel precatalysts offer broad substrate scope and unique reaction mechanisms.
- They provide active species in variable oxidation states, enhancing catalytic versatility.
- Nickel catalysts are increasingly favored due to their accessibility and potential for greener synthesis.
Conclusions:
- Nickel precatalysts represent a significant advancement in synthetic chemistry, offering a sustainable and versatile alternative to palladium.
- Careful consideration of precatalyst properties like synthesis, stability, and applicability is crucial for successful reaction development.
- This review serves as a valuable resource for researchers seeking to leverage nickel catalysis in their synthetic endeavors.
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