Organic Chemistry Portal



Allenylidene-to-Indenylidene Rearrangement in Arene-Ruthenium Complexes: A Key Step to Highly Active Catalysts for Olefin Metathesis Reactions

Ricardo Castarlenas, Chloé Vovard, Cédric Fischmeister and Pierre H. Dixneuf*

*Institut de Chimie de Rennes, UMR 6509 CNRS-Université de Rennes, Organométalliques et Catalyse, Campus de Beaulieu, 35042 Rennes, France, Email:

R. Castarlenas, C. Vovard, C. Fischmeister, P. H. Dixneuf, J. Am. Chem. Soc., 2006, 128, 4079-4089.

DOI: 10.1021/ja0579762 (free Supporting Information)


Allenylidene-ruthenium complexes on protonation with HOTf are rearranged to indenylidene-ruthenium complexes, which are efficient catalyst precursors for ring-opening metathesis polymerization, ring-closing metathesis and enyne metathesis of a variety of substrates.

see article for more examples

preparation of an indenylidene-ruthenium complex (see article for details)

in situ generation of active species

Key Words

Olefin Metathesis, Ring-Closing Metathesis, Ring-Opening Metathesis, Enyne Metathesis, 3-Pyrrolines, 2,5-Dihydrofurans, O-Heterocycles

ID: J48-Y2006-1710