True and masked three-coordinate T-shaped platinum(II) intermediates
Ortuño Maqueda, Manuel Ángel (Universitat Autònoma de Barcelona. Departament de Química)
Conejero, Salvador (Universidad de Sevilla. Departamento de Química Inorgánica)
Lledós, Agustí (Lledós i Falcó) (Universitat Autònoma de Barcelona. Departament de Química)

Fecha:	2013
Resumen:	Although four-coordinate square-planar geometries, with a formally 16-electron counting, are absolutely dominant in isolated Pt(II) complexes, three-coordinate, 14-electron Pt(II) complexes are believed to be key intermediates in a number of platinum-mediated organometallic transformations. Although very few authenticated three-coordinate Pt(II) complexes have been characterized, a much larger number of complexes can be described as operationally three-coordinate in a kinetic sense. In these compounds, which we have called masked T-shaped complexes, the fourth position is occupied by a very weak ligand (agostic bond, solvent molecule or counteranion), which can be easily displaced. This review summarizes the structural features of the true and masked T-shaped Pt(II) complexes reported so far and describes synthetic strategies employed for their formation. Moreover, recent experimental and theoretical reports are analyzed, which suggest the involvement of such intermediates in reaction mechanisms, particularly C-H bond-activation processes.
Ayudas:	Ministerio de Economía y Competitividad CTQ2011-23336 Ministerio de Economía y Competitividad CTQ2010-17476 Ministerio de Economía y Competitividad CSD2007-00006
Nota:	The license is subject to the Beilstein Journal of Organic Chemistry terms and conditions: http://www.beilstein-journals.org/bjoc
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	C-H bond activation ; Intermediate ; Platinum(II) ; Reactive intermediates ; Three-coordinate ; T-shaped
Publicado en:	Beilstein journal of organic chemistry, Vol. 9 (July 2013) , p. 1352-1382, ISSN 1860-5397

DOI: 10.3762/bjoc.9.153
PMID: 23946831

31 p, 3.0 MB

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