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  • Journal article
    Britovsek GJP, Gibson VC, Wass DF, 1999,

    The search for new-generation olefin polymerization catalysts: Life beyond metallocenes

    , Angewandte Chemie International Edition, Vol: 38, Pages: 428-447, ISSN: 1433-7851

    The introduction of well-defined, single-site organotransition metal olefin polymerization catalysts in the early 1980s highlighted the possibilities for controlling and dramatically improving the properties of commodity polymer products such as polyethylene and polypropylene. Group 4 metallocenes and half-sandwich titanium-amide complexes (constrained-geometry catalysts) have been at the forefront of these developments, and, as we approach the late 1990s, these catalysts are increasingly finding their way into commercial operations. However, it is generally acknowledged that no single class of catalyst will be capable of controlling all of the macromolecular parameters relevant to a wide and varied range of polyolefinic products. Over the past few years, an intense search has therefore developed, in both academic and industrial research laboratories, for new-generation catalysts. Some of the most significant recent developments have occurred with late transition metal systems. Particularly, the discovery of exceptionally active catalysts based on iron, a metal that had no previous track record of being applied in this way, has signposted the way for further technologically significant advances in the field. In this review, we highlight the key advances that have occurred in the discovery and development of non-Group 4 metallocene catalysts, amply demonstrating that there are significant signs of life beyond the Group 4 metallocenes. © Wiley-VCH Verlag GmbH, 1999.
  • Journal article
    Griffiths EAH, Britovsek GJP, Gibson VC, Gould IRet al., 1999,

    Highly active ethylene polymerisation catalysts based on iron: an ab initio study

    , Chemical Communications, Pages: 1333-1334, ISSN: 1359-7345
  • Journal article
    Britovsek GJP, Gibson VC, Wass DF, 1999,

    The search for new-generation olefin polymerization catalysts: Life beyond metallocenes

    , ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, Vol: 38, Pages: 428-447
    • Cite
    • Citations: 2131
  • Journal article
    Britovsek GJP, Bruce M, Gibson VC, Kimberley BS, Maddox PJ, Mastroianni S, McTavish SJ, Redshaw C, Solan GA, Stromberg S, White AJP, Williams DJet al., 1999,

    Iron and cobalt ethylene polymerization catalysts bearing 2,6- bis(imino)pyridyl ligands: Synthesis, structures, and polymerization studies

    , Journal of the American Chemical Society, Vol: 121, Pages: 8728-8740, ISSN: 0002-7863
  • Journal article
    Britovsek GJP, Bruce M, Gibson VC, Kimberley BS, Maddox PJ, Mastroianni S, McTavish SJ, Redshaw C, Solan GA, Stromberg S, White AJP, Williams DJet al., 1999,

    Iron and cobalt ethylene polymerization catalysts bearing 2,6- bis(imino)pyridyl ligands: Synthesis, structures, and polymerization studies

    , Journal of the American Chemical Society, Vol: 121, Pages: 8728-8740, ISSN: 0002-7863
  • Journal article
    Britovsek GJP, Gibson VC, Wass DF, 1999,

    The search for new-generation olefin polymerization catalysts: Life beyond metallocenes

    , Angewandte Chemie-International Edition in English, Vol: 38, Pages: 429-447, ISSN: 1433-7851
  • Journal article
    Griffiths EAH, Britovsek GJP, Gibson VC, Gould IRet al., 1999,

    Highly active ethylene polymerisation catalysts based on iron: an ab initio study

    , Chemical Communications, Pages: 1333-1334, ISSN: 1359-7345
  • Journal article
    Cameron PA, Britovsek GJP, Gibson VC, Williams DJ, White AJPet al., 1998,

    Surprises in enolate binding at high valent molybdenum

    , Chemical Communications, Pages: 737-738, ISSN: 1359-7345
  • Journal article
    Britovsek GJP, Gibson VC, Kimberley BS, Maddox PJ, McTavish SJ, Solan GA, White AJP, Williams DJet al., 1998,

    Novel olefin polymerization catalysts based on iron and cobalt

    , Chemical Communications, Pages: 849-850, ISSN: 1359-7345
  • Journal article
    Green MJ, Britovsek GJP, Cavell KJ, Gerhards F, Yates BF, Frankcombe K, Skelton BW, White AHet al., 1998,

    Cationic methylpalladium(II) complexes containing bidentate N-O ligands as catalysts for the copolymerisation of CO and ethylene. Identification and isolation of intermediates from the stepwise insertion reactions, and subsequent detailed mechanistic interpretation

    , Journal of the Chemical Society-Dalton Transactions, Pages: 1137-1144, ISSN: 1364-5447
  • Journal article
    Britovsek GJP, Gibson VC, Kimberley BS, Maddox PJ, McTavish SJ, Solan GA, White AJP, Williams DJet al., 1998,

    Novel olefin polymerization catalysts based on iron and cobalt

    , Chemical Communications, Pages: 849-850, ISSN: 1359-7345
  • Patent
    Britovsek GJP, Dorer BA, Gibson VC, Kimberley BS, Solan GAet al., 1997,

    Polymerisation Catalysts

    , WO 99/12981
  • Journal article
    Britovsek GJP, Cavell KJ, Green MJ, Gerhards F, Skelton BW, White AHet al., 1997,

    Cationic methyl-palladium(II) complexes containing bidentate N-O and P-O ligands and a tridentate P-O-N ligand: synthesis, carbonylation and catalytic applications in the copolymerisation of carbon monoxide and ethene

    , Journal of Organometallic Chemistry, Vol: 433, Pages: 201-212, ISSN: 0022-328X
  • Journal article
    Green MJ, Britovsek GJP, Cavell KJ, Skelton BW, White AHet al., 1996,

    Ethene insertion into a palladium-acetyl bond: Crystal structure of [Pd(CH2CH2COMe)(NC5H4CO 2Me-2)(PPh3)]BF4, a novel reaction intermediate from the insertion process

    , Chemical Communications, Pages: 1563-1564, ISSN: 1359-7345

    From the catalytic conversion of CO and ethene to polyketone with [Pd(Me)(NC<inf>5</inf>H<inf>4</inf>CO<inf>2</inf>Me-2)- (PPh<inf>3</inf>)]BF<inf>4</inf> 1, the reaction of ethene with [Pd(COMe)(NC<inf>5</inf>H<inf>4</inf>CO<inf>2</inf>Me-2)-(PPh <inf>3</inf>)]BF<inf>4</inf> 2 yields a rare example of an isolable product from the insertion of an unstrained alkene into a Pd-acyl bond, and the crystal structure of [Pd(CH<inf>2</inf>CH<inf>2</inf>COMe)-(NC<inf>5</inf>H<inf>4</inf>CO <inf>2</inf>Me-2)(PPh<inf>3</inf>)]BF<inf>4</inf> 3 showing a novel square-pyramidal intermediate with a weakly interacting oxygen in the apical position.
  • Journal article
    Green MJ, Britovsek GJP, Cavell KJ, Skelton BW, White AHet al., 1996,

    Ethene Insertion into a Palladium-Acetyl Bond. Crystal Structure of [Pd(CH2CH2COMe)(N5H4CO2Me-2)PPh3]BF4, a Novel Reaction Intermediate from the Insertion Process

    , Chem. Commun., Pages: 1563-1564
  • Journal article
    Britovsek GJP, Cavell KJ, Keim W, 1996,

    Hemilabile ligands in palladium catalysed C-C likages: the effect of the donor atom in the codimerisation of styrene with ethylene

    , Journal of Molecular Catalysis A-Chemical, Vol: 110, Pages: 77-87, ISSN: 1381-1169
  • Journal article
    Britovsek GJP, Keim W, Mecking S, Sainz D, Wagner Tet al., 1993,

    Hemilabile P,O-Ligands in Palladium Catalysed C-C Linkages: Codimerization of Ethylene and Styrene and Cooligomerization of Ethylene and Carbon Monoxide

    , Chem. Commun., Pages: 1632-1634
  • Journal article
    van der Steen FH, Kleijn H, Britovsek GJP, Jastrzebski, JTBH, van Koten Get al., 1992,

    Enantioselective Synthesis of 3-Amino-2-azetidinones via the Ester Enolate-Imine Condensation

    , Journal of Organic Chemistry, Vol: 57, Pages: 3906-3916
  • Patent
    Britovsek GJP, Jastrzebski, JTBH, Kleijn H, van Koten G, van der Steen FHet al., 1991,

    Synthesis of beta-lactams using a metal compound

    , EP 40426

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Contact

Prof. Dr. George Britovsek FRSC

Director MRes Catalysis & Engineering

Tel: +44 (0)20 7594 5863

Email: g.britovsek@imperial.ac.uk

Department of Chemistry
Imperial College London
Molecular Sciences Research Hub
White City Campus
80 Wood Lane
London W12 0BZ
United Kingdom