Synthesis of new ligands for transition metal complexes: menthyl- and neomenthyl-cyclopentadienes |
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| Authors: | E. Cesarotti H.B. Kagan R. Goddard C. Krüger |
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| Affiliation: | Laboratoire de Synthèse Asymétrique (LA CNRS No. 040255), Université de Paris-Sud 91405-Orsay France;Max-Planck-Institut für Kohlenforschung, Mülheim a.d. Ruhr F.G.R. |
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| Abstract: | Syntheses of (?)-menthylcyclopentadiene (MCp) and (+)-neomenthyl cyclopentadiene (NMCp) from (?)-menthol are described. These chiral ligands have been used to prepare (η5-MCp)2TiCl2, (η5-NMCp)2, TiCl2, (η5-MCp)2ZrCl2, (η5-NMCp)2ZrCl2, (η5-Cp)(η5-MCp)TiCl2 and (η5-Cp)(η5-NMCp)TiCl2. The structure and absolute configuration of (η5-Cp)(η5-MCp)TiCl2 has been established by X-ray analysis. |
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