Trifluoroethanol: key solvent for palladium-catalyzed polymerization reactions (Articolo in rivista)

Type
Label
  • Trifluoroethanol: key solvent for palladium-catalyzed polymerization reactions (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jorganchem.2005.01.004 (literal)
Alternative label
  • A. Scarel; J. Durand; D. Franchi; E. Zangrando; G. Mestroni; B. Milani; S. Gladiali; C. Carfagna; B. Binotti; S. Bronco; T. Gragnoli (2005)
    Trifluoroethanol: key solvent for palladium-catalyzed polymerization reactions
    in Journal of organometallic chemistry (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. Scarel; J. Durand; D. Franchi; E. Zangrando; G. Mestroni; B. Milani; S. Gladiali; C. Carfagna; B. Binotti; S. Bronco; T. Gragnoli (literal)
Pagina inizio
  • 2106 (literal)
Pagina fine
  • 2120 (literal)
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  • 690 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 15 (literal)
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  • 8 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Scienze Chimiche, Universita` di Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy Dipartimento di Chimica, Universita` di Sassari, Via Vienna 2, 07100, Sassari, Italy Istituto di Scienze Chimiche, Universita` di Urbino, Piazza, Rinascimento 6, Urbino, Italy PolyLab-INFM-Pisa c/o, Dipartimento di Chimica e Chimica Industriale, Universita` di Pisa, Via Risorgimento 35, 56126 Pisa, Italy Dipartimento di Chimica e Chimica Industriale, Universita` di Pisa c/o Waste Recycling, Via Risorgimento 35, 56126 Pisa, Italy (literal)
Titolo
  • Trifluoroethanol: key solvent for palladium-catalyzed polymerization reactions (literal)
Abstract
  • A series of cationic palladium complexes of general formula [Pd(CH3)(NCCH3)(N-N)][X] (N-N = phen 1, 3-sec-butyl-1,10-phenanthroline (3-sBu-phen) 2, bpy 3, (-)-(S,S)-3,30-(1,2-dimethylethylenedioxy)-2,20-bipyridine (bbpy) 4, (+)-(R)-3,30-(1-methylethylenedioxy)-2,20-bipyridine (pbpy) 5, N,N0-bis(2,6-diisopropylphenyl)-2,3-butanediimine (iso-DAB) 6; X¼ PF-6 a, OTf (OTf = triflate) b) containing different nitrogen-donor ligands were prepared from the corresponding neutral chloro derivatives [Pd(CH3)(Cl)(N-N)] (1c-6c). They were characterized by 1H NMR spectroscopy and elemental analysis. Single crystals suitable for X-ray determination were obtained for complexes [Pd(CH3)(NCCH3)(bbpy)][PF6] (4a), [Pd(CH3)(NCCH3)(iso-DAB)][PF6] (6a) and [Pd(Cl)2(bbpy)] (4c0). The latter is the result of an exchange reaction of the methyl group, present in complex 4c, with a chloride, that occurred after dissolution of 4c in CDCl3, for 1 week at 0 °C. The catalytic behavior of complexes 1a-5a and 1b- 5b in the CO/styrene copolymerization was studied in CH2Cl2 and 2,2,2-trifluoroethanol (TFE) evidencing the positive effect of the fluorinated alcohol both in terms of productivity and molecular weight values of the polymers obtained. Influence of the nitrogen ligand, the anion and the reaction time in both solvents were investigated and is discussed in detail. Encouraging preliminary results were also obtained in the synthesis of polyethylene, in TFE, catalyzed by [Pd(CH3)(NCCH3)(iso-DAB)][PF6] (6a). (literal)
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