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Supported ionic liquids for effective ruthenium olefin metathesis

APPLIED CATALYSIS A-GENERAL (2023)

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Summary: Over the past 30 years, many strategies have been developed to immobilize well-defined metathesis catalysts on solid supports. The use of heterogeneous catalysis resulted in increased purity of the product and the possibility of recycling the catalyst. This review focuses on the short history of heterogeneous catalysts used in olefin metathesis, with particular emphasis on examples from recent years. It mainly discusses the immobilized ruthenium alkylidene complexes based on ionic liquids as a new promising approach, including the noncovalent immobilization that has gained recent interest. The methods of attaching catalysts and types of carriers are also presented. Homogeneous catalysts are discussed to highlight the influence and potential of immobilization on the activity and selectivity of heterogeneous catalysts in olefin metathesis.

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