Formation and Cleavage of C−C, C−O, and O−H Bonds Involving Methoxycarbyne and Hydroxycarbyne Ligands at Unsaturated Dimolybdenum Complexes

Reversible carbyne−carbyne coupling occurs upon addition of simple ligands L (CO, t BuNC) to the bis(methoxycarbyne) complex [Mo2Cp2(μ-COMe)2-(μ-PCy2)]BF4 to give the dimethoxyacetylene-bridged derivatives [Mo2Cp2{μ-η2:η2-C2(OMe)2}(μ-PCy2)L2]BF4. Upon demethylation, the dicarbonyl cation experiences...

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Bibliographic Details
Published in:Organometallics 2005-08, Vol.24 (17), p.4122-4124
Main Authors: Alvarez, Celedonio M., Alvarez, M. Angeles, García, M. Esther, García-Vivó, Daniel, Ruiz, Miguel A.
Format: Article
Language:English
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Summary:Reversible carbyne−carbyne coupling occurs upon addition of simple ligands L (CO, t BuNC) to the bis(methoxycarbyne) complex [Mo2Cp2(μ-COMe)2-(μ-PCy2)]BF4 to give the dimethoxyacetylene-bridged derivatives [Mo2Cp2{μ-η2:η2-C2(OMe)2}(μ-PCy2)L2]BF4. Upon demethylation, the dicarbonyl cation experiences a 1,2-methoxyl shift to give the carboxycarbyne derivative [Mo2Cp2{μ-C(CO2Me)}(μ-PCy2)(CO)2].
ISSN:0276-7333
1520-6041
DOI:10.1021/om050550b