Abstract
Reaction of the water-soluble ruthenium complex [{RuCl2(TPPMS)2}Na2]2·4H2O with phenylacetylene and diphenylpropargyl alcohol in THF at room temperature gave the water-soluble unsaturated carbenes [{RuCl2{CC(H)Ph}(TPPMS)2}]Na2 and [{RuCl(μ-Cl)(CCCPh2)(TPPMS)2}2]Na4, respectively. The ability of these complexes, which represents the first example of water-soluble vinylidenes and allenylidenes, to catalyze the ring-opening metathesis of cyclic olefins with methyl acrylate as chain transfer reagents is briefly discussed.
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