Coupling of the R−Cp or Indenyl Ligand with the Diene Moiety of Bis(substituted cyclopentadienyl)- or Bis(indenyl)zirconacyclopentadienes

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Abstract

When bis(substituted cyclopentadienyl)- or bis(indenyl)zirconacyclopentadienes were treated with TiCl(4), a coupling reaction between the substituted cyclopentadienyl or indenyl ligand and the diene moiety proceeded to give indene or fluorene derivatives in moderate to high yields. With the sterically hindered t-Bu-substituted Cp ligand, the coupling products were obtained in high yields.

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