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Deprotonation of the aminofulvene 1 with LiCH(SiMe) provides 2, which reacts with MCl (M=Zr or Hf) by intramolecular NMeH elimination and coupling of the fulvene moieties to form complex 3 or 4. This reaction is a useful synthetic pathway to allyl-bridged ansa-metallocenes, especially those with a conjugated 14 π electron system. R'=dimethylamino.
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| http://dx.doi.org/10.1002/(SICI)1521-3773(19990712)38:13/14<1926::AID-ANIE1926>3.0.CO;2-D | DOI Listing |
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