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• W1991719956 abstract "The compounds (η5(:η1)-C5H4CH2CH2OR)TiCl3 with R = Me (1a), menthyl (1b), and fenchyl (1c), but not with R = isobornyl, were synthesized from the reaction of TiCl4 and C5H4(CH2CH2OR)(SiMe3) in CH2Cl2. Intramolecular coordination of the ether moiety in these compounds is fluxional. From temperature-dependent NMR data in CD2Cl2 it was calculated that at room temperature about 30% of 1a is in a conformation in which the ether handle is coordinated; for the chiral derivatives 1b and 1c this figure is significantly lower. A similar reaction using ZrCl4(SMe2)2 yields the dimer [(η5:η1-C5H4CH2CH2OMe)ZrCl2(μ-Cl)]2 (2). Chiral zirconium analogues could not be prepared in this way. The reaction of the isobornyl ligand results in selective C−O bond scission and formation of sulfonium zirconate salts. Compound 2 was structurally characterized. Probably due to its poor solubility 2 is only a moderate Ziegler−Natta catalyst for the polymerization of ethylene." @default.
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• W1991719956 date "1997-06-01" @default.
• W1991719956 modified "2023-10-16" @default.
• W1991719956 title "Synthesis and Characterization of Monocyclopentadienyl Titanium and Zirconium Complexes Bearing a Chelating (Chiral) Ether Side Chain on the Cp Ring" @default.
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• W1991719956 doi "https://doi.org/10.1021/om970040k" @default.
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