Evaluation of an olefin metathesis pre-catalyst with a bulky and electron-rich N-heterocyclic carbene

Manzini, Simone and Urbina Blanco, César A. and Nelson, David J. and Poater, Albert and Lebl, Tomas and Meiries, Sébastien and Slawin, Alexandra M. Z. and Falivene, Laura and Cavallo, Luigi and Nolan, Steven P. (2015) Evaluation of an olefin metathesis pre-catalyst with a bulky and electron-rich N-heterocyclic carbene. Journal of Organometallic Chemistry. ISSN 0022-328X (https://doi.org/10.1016/j.jorganchem.2014.12.040)

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Abstract

The commercially-available metathesis pre-catalyst M23 has been evaluated alongside new complex [RuCl2((3-phenyl)indenylidene)(PPh3)(SIPrOMe)] (1), which bears a para-methoxy-substituted N-heterocyclic carbene ligand. Several model metathesis reactions could be conducted using only parts-per-million levels of ruthenium catalyst. The effects of the different NHC ligands on reactivity have been explored.