@article{Huttenhofer2002Mecha-23857,
  year={2002},
  doi={10.1016/S0022-328X(02)01653-4},
  title={Mechanisms of Sn-to-Zr cyclopentadienyl transfer in the formation of Me<sub>2</sub>Si-bridged zirconocenes from sila-stanna-tetrahydro-s-indacenes},
  number={1-2},
  volume={663},
  issn={0022-328X},
  journal={Journal of Organometallic Chemistry},
  pages={58--62},
  author={Hüttenhofer, Mario and Weeber, Armin and Brintzinger, Hans-Herbert}
}

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    <dc:creator>Brintzinger, Hans-Herbert</dc:creator>
    <dcterms:abstract xml:lang="eng">The stereochemistry of Sn-to-Zr transmetalation was studied by reacting ZrCl&lt;sub&gt;4&lt;/sub&gt; with that isomer of meso-BnMeSi(3-&lt;sup&gt;t&lt;/sup&gt;BuC&lt;sub&gt;5&lt;/sub&gt;H&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt;SnMe&lt;sub&gt;2&lt;/sub&gt; which has the benzyl group in axial position. Exchange of SnMe&lt;sub&gt;2&lt;/sub&gt; against ZrCl&lt;sub&gt;2&lt;/sub&gt; generates both isomers of the CS-symmetric ansa-zirconocene meso-BnMeSi(3-&lt;sup&gt;t&lt;/sup&gt;BuC&lt;sub&gt;5&lt;/sub&gt;H&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt;ZrCl&lt;sub&gt;2&lt;/sub&gt;, but not the C&lt;sub&gt;1&lt;/sub&gt;-symmetric, rac-like isomer. The major product is formed under inversion at both Sn-bound C atoms by consecutive "back-side" attacks of the Zr electrophile, while the minor product appears to be formed, under retention at both Sn-bound C atoms, by a concerted "front-side" attack of ZrCl&lt;sub&gt;4&lt;/sub&gt;.</dcterms:abstract>
    <dc:contributor>Weeber, Armin</dc:contributor>
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    <dcterms:bibliographicCitation>Journal of Organometallic Chemistry ; 663 (2002), 1-2. - S. 58-62</dcterms:bibliographicCitation>
    <dc:creator>Hüttenhofer, Mario</dc:creator>
    <dc:contributor>Brintzinger, Hans-Herbert</dc:contributor>
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    <dcterms:title>Mechanisms of Sn-to-Zr cyclopentadienyl transfer in the formation of Me&lt;sub&gt;2&lt;/sub&gt;Si-bridged zirconocenes from sila-stanna-tetrahydro-s-indacenes</dcterms:title>
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