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Efficient and Recyclable Monomeric and Dendritic Ru-Based Metathesis Catalysts

Steven B. Garber, Jason S. Kingsbury, Brian L. Gray and Amir H. Hoveyda*

*Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, Email:

S. B. Garber, J. S. Kingsbury, B. L. Gray, A. H. Hoveyda, J. Am. Chem. Soc., 2000, 122, 8168-8179.

DOI: 10.1021/ja001179g

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A Ru complex bearing a 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene and styrenyl ether ligand offers significantly enhanced catalytic activity, and the styrenyl ether allows for easy recovery of the Ru complex. This catalyst promotes ring-closing metathesis (RCM) and efficient formation of various trisubstituted olefins at ambient temperature. Recyclable Ru-based complexes are also disclosed.

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Key Words

ring-closing metathesis, 2,5-dihydrofurans

ID: J48-Y2000