Synthesis, Characterisation and Molecular Structure of Re(III) 2-oxacyclocarbenes Stabilised by a Benzoyldiazenido Ligand (Articolo in rivista)

Type
Label
  • Synthesis, Characterisation and Molecular Structure of Re(III) 2-oxacyclocarbenes Stabilised by a Benzoyldiazenido Ligand (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/ b315693a (literal)
Alternative label
  • Marvelli, Lorenza ; Mantovani, Nicoletta; Marchi, Andrea; Rossi, Roberto; Brugnati, Michele; Peruzzini, Maurizio; Barbaro, Pierluigi; de los Rios, Isaac; Bertolasi, Valerio (2004)
    Synthesis, Characterisation and Molecular Structure of Re(III) 2-oxacyclocarbenes Stabilised by a Benzoyldiazenido Ligand
    in Dalton transactions (2003. Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Marvelli, Lorenza ; Mantovani, Nicoletta; Marchi, Andrea; Rossi, Roberto; Brugnati, Michele; Peruzzini, Maurizio; Barbaro, Pierluigi; de los Rios, Isaac; Bertolasi, Valerio (literal)
Pagina inizio
  • 713 (literal)
Pagina fine
  • 722 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Laboratorio di Chimica Nucleare ed Inorganica, Dipartimento di Chimica, Università di Ferrara, Via L. Borsari 46, 44100, Ferrara, Italy. Istituto di Chimica dei Composti OrganoMetallici, ICCOM CNR, Via Madonna del Piano,Area di Ricerca del CNR, 50019, Sesto Fiorentino, Italy. Departamiento de Ciencia de los Materiales e Ing. Met. y Quimica Inorganica, Facultad de Ciencias, Universidad de Cadiz, Apartado 40, Puerto Real, 11510, Spain. Centro di Strutturistica Diffrattometrica, Dipartimento di Chimica, Università di Ferrara, Via L. Borsari 46, 4100 Ferrara, Italy. (literal)
Titolo
  • Synthesis, Characterisation and Molecular Structure of Re(III) 2-oxacyclocarbenes Stabilised by a Benzoyldiazenido Ligand (literal)
Abstract
  • A family of new Fischer-type rhenium(???) benzoyldiazenido-2-oxacyclocarbenes of formula [(ReCl2{?1-N2C(O)- Ph}{??C(CH2)nCH(R)O}(PPh3)2] [n = 2, R = H (2), R = Me (3); n = 3, R = H (4), R = Me (5)] have been prepared by reaction of [ReCl2{?2-N2C(Ph)O}(PPh3)2] (1) with ?-alkynols, such as 3-butyn-1-ol, 4-pentyn-1-ol, 4-pentyn-2-ol, 5-hexyn-2-ol in refluxing THF. The correct formulation of the carbene derivatives 2-5 has been unambiguously determined in solution by NMR analysis and confirmed for compounds 2-4 by X-ray diffraction methods in the solid state. All complexes are octahedral with the benzoyldiazenido ligand, Re{N2C(O)Ph}, adopting a \"single bent\" conformation. The coordination basal plane is completed by an oxacyclocarbene ligand and two chlorine atoms. Two triphenylphosphines in trans positions with respect to each other complete the octahedral geometry around rhenium. The reactivity of 1 towards different alkynes and alkenes including propargyl- and allylamine has been also studied. With propargyl amine, monosubstituted or bisubstituted complexes, [(ReCl2{?1-N2C(O)Ph}{?1-NH2- CH2C?? ?CH}n(PPh3)3?n] [n = 1 (6); n = 2 (7)], have been isolated depending on the reaction conditions. In contrast, the reaction with allylamine gave only the disubstituted complex [(ReCl2{?1-N2C(O)Ph}{?1-NH2CH2CH?? CH2}2(PPh3)] (8). The molecular structure of the monosubstituted adduct 6 has been confirmed by X-ray analysis in the solid state (literal)
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