Ruthenium Indenylidene Complexes

Authors: Valerian Dragutan¹; Ileana Dragutan¹; Francis Verpoort²

Source: Platinum Metals Review, Volume 49, Number 1, January 2005 , pp. 33-40(8)

Publisher: Johnson Matthey

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Abstract:

This paper describes a class of ruthenium indenylidene complexes which constitute robust and efficient pre-catalysts for olefin metathesis reactions, specifically ring-closing metathesis of substituted linear dienes, acyclic diene metathesis of alpha

-dienes, enyne metathesis and ring-opening metathesis polymerisation of cycloolefins. They readily allow reactions not promoted by many prior ruthenium catalysts, such as the synthesis of tri- and tetrasubstituted cycloalkenes as well as ring-closing metathesis involving highly substituted dienes. The activity and stability of these pre-catalysts can be finely tuned by adjusting both steric and electronic effects in the metal coordination sphere through an appropriate selection of ancillary ligands. Due to their accessibility, enhanced activity and good stability, this class of ruthenium complexes gratifyingly extends the scope and utility of the currently used metathesis catalysts.

Document Type: Research article

DOI: 10.1595/147106705X24580

Affiliations: 1: Institute of Organic Chemistry, Romanian Academy, 202B Spl. Independentei, PO Box 15-254, 060023 Bucharest, Romania 2: Department of Inorganic and Physical Chemistry, Organometallics and Catalysis Division, Ghent University, Krijgslaan 281 (S3), 9000 Ghent, Belgium

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