The Novel Cyclodimerization of Phenylacetylene at a Ruthenium(II) Centre. The Synthesis and X-Ray Structural Characterization of the First Metallacyclopentatriene, , and its Facile Conversion into Metallacyclopentadienes

DOI: 10.1039/c39860001680

Source and publish data:

Journal of the Chemical Society. Chemical communications p. 1680 - 1682 (1986)

Update date:2022-08-05

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Authors:

Albers, Michel O.

Waal, Dirk J. A. de

Liles, David C.

Robinson, David J.

Singleton, Eric

Wiege, Manfred B.

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Article abstract of DOI:10.1039/c39860001680

Cyclodimerization of two molecules of phenylacetylene at the ruthenium(II) centre in <(η-C5H5)Ru(η-C8H12)Br> (C8H12 = cyclo-octa-1,5-diene) gives the novel ruthenacyclopentatriene <(η-C4H5)Ru(C4Ph2H2)Br> characterized by 1H and 13H n.m.r. spectroscopy and by X-ray analysis; the triene undergoes facile 'oxidative addition' with donor ligands L (e.g. morpholine, trimethyl phosphite, dimethylphenylphosphine) in a bimolecular reaction involving an associative mode of activation to give the ruthenacyclopentadienes <(η-C5H5)Ru(L)C4Ph2H2)Br>.

Full text of DOI:10.1039/c39860001680

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