Functionalized N‑Heterocyclic Carbene Nonspectator Ligands upon Internal Alkyne Activation Reactions

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Functionalized N‑Heterocyclic Carbene Nonspectator Ligands upon Internal Alkyne Activation Reactions

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dc.contributor.author Valerga, Pedro
dc.contributor.author Puerta Vizcaino, María del Carmen
dc.contributor.author Valerga Jiménez, Pedro Sixto
dc.contributor.other Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica en_US
dc.date.accessioned 2018-05-03T11:07:48Z
dc.date.available 2018-05-03T11:07:48Z
dc.date.issued 2013-05
dc.identifier.uri http://hdl.handle.net/10498/20431
dc.description.abstract When studying the activation of 3-arylpropiolates by [TpRu(picolyl-RI)Cl]/NaBArF 4 (picolyl-MeI = 3-methyl-1-(2- picolyl)imidazol-2-ylidene (1); picolyl-MeBI = 3-methyl-1-(2- picolyl)benzoimidazol-2-ylidene (2)) a migratory insertion of the NHC into a ruthenium−carbon bond and an unprecedented C−N bond activation of the chelating picolyl-NHC ligand take place to give the new ruthenium metallacycles [TpRu(κ3-C,N,N′- =C(Ph) = C(CH2Py)(CO2Me)(MeI)][BArF 4] 3a and 4a and [TpRu(κ3-C,N,N′-=C(4-CF3Ph) = C(CH2Py)(CO2Me)(MeI)]- [BArF 4] 3b and 4b. X-ray crystal structures of 3a and 3b are reported, and a mechanistic pathway is proposed. In contrast, activation of internal alkynones by a mixture of [TpRu(picolyl-MeI)Cl] complex (1) and NaBArF 4 led to isolation and characterization of the corresponding disubstituted vinylidene complexes. Also, structures of [TpRu(picolyl-MeI)(= CC(COR)(Ph)][BArF 4] (R = Me (6a); Ph (6b)) are reported. en_US
dc.format application/pdf en_US
dc.language.iso eng en_US
dc.publisher ACS Publications en_US
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 Internacional *
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.source Inorganic Chemistry 2013, 52, 6502−6509 en_US
dc.title Functionalized N‑Heterocyclic Carbene Nonspectator Ligands upon Internal Alkyne Activation Reactions en_US
dc.type info:eu-repo/semantics/article en_US
dc.identifier.doi 10.1021/ic400433z

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Attribution-NonCommercial-NoDerivatives 4.0 Internacional Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional