CC-Coupling and Reversible γ-H Abstraction in the Tantalum Complex Cl(η5-Cp)(η3-C9H7)Ta(CHCMe3)

Authors

  • Dr. Anton W. Gal,

    Corresponding author
    1. Koninklijke/Shell-Laboratorium, Amsterdam (Shell Research B.V.) Badhuisweg 3, NL-1031 CM Amscerdam (The Netherlands)
    • Koninklijke/Shell-Laboratorium, Amsterdam (Shell Research B.V.) Badhuisweg 3, NL-1031 CM Amscerdam (The Netherlands)
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  • Harry van der Heijden

    1. Koninklijke/Shell-Laboratorium, Amsterdam (Shell Research B.V.) Badhuisweg 3, NL-1031 CM Amscerdam (The Netherlands)
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Abstract

original image

The potential of organotantalum compounds for CC-coupling and H-shift reactions has been demonstrated by a newly discovered type of reaction: A CC-coupling between the η3-indenyl and the neopentylidene ligands in (1) leads, even at room temperature, to an intermediate, from which the novel tantala-bicycloheptene derivative (2) is formed by a γ,α H-shift reaction. (2) reacts with ethylene to give the tantalanorbornane (3).

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