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A facile synthetic route to (η-benzoyleyclopentadienyl) metal compounds |
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| Authors: | Stephen S. Jones Marvin D. RauschThomas E. Bitterwolf |
| Affiliation: | Department of Chemistry, University of Massachusetts, Amherst, MA 01003 USA Department of Chemistry, University of Idaho, Moscow, ID 83843 USA |
| Abstract: | A reaction between cyclopentadienylsodium and ethyl benzoate in refluxing THF produces (benzoylcyclopentadienyl)sodium (4) in 70–80% yield. Subsequent treatment of 4 in ethanol solution with thallium ethoxide affords (benzoyleyclopentadienyl)thallium (3) in nearly quantitative yield. Reactions of 3 with Mn(CO)5Br, Re(CO)5Br, [Rh(CO)2Cl]2 or FeCl2 lead to the respective η5-benzoylcyclopentadienyl derivatives of these metals, and demonstrate the utility of 3 in organometallic syntheses. Reactions of several of these organometallic ketones with cymantrenyllithium [(η5-C5H4Li)Mn(CO)3] provide a useful new route to bimetallic compounds. |
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