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Nickel-catalyzed intermolecular domino reactions
1Faculty of Pharmaceutical Sciences, Nagoya City University, Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.
Accounts of Chemical Research
|August 24, 2000
Summary
Nickel-catalyzed domino reactions efficiently link diverse starting materials like alkenes and alkynes. This versatile approach yields valuable compounds such as dienes and carbocycles, with successful asymmetric variants demonstrating broad applicability.
Area of Science:
- Organic Chemistry
- Catalysis
Background:
- Domino reactions offer efficient synthetic pathways by forming multiple bonds in a single operation.
- Nickel catalysis presents a powerful tool for developing novel reaction methodologies.
Purpose of the Study:
- To explore the potential of nickel-catalyzed multiple-component reactions as a new class of domino reactions.
- To demonstrate the versatility and scope of these reactions in synthesizing valuable organic compounds.
Main Methods:
- Utilizing nickel catalysts to mediate the coupling of various unsaturated starting materials.
- Investigating reaction conditions for high selectivity and mild operational parameters.
- Developing an asymmetric version of the nickel-catalyzed domino reaction.
Main Results:
- Successful connection of alkenes, alkynes, and unsaturated carbonyl compounds.
- High selectivity achieved under reasonably mild conditions.
- Synthesis of key compounds including dienes, enynes, enol silyl ethers, and carbocycles.
- Demonstration of a successful asymmetric variant.
Conclusions:
- Nickel-catalyzed multiple-component reactions represent a significant advancement in domino reaction chemistry.
- These reactions provide efficient and selective routes to synthetically important molecules.
- The development of asymmetric versions broadens the utility and impact of this methodology.