12267-07-1Relevant academic research and scientific papers
A facile synthetic route to (η5-benzoylcyclopentadienyl)metal compounds
Jones, Stephen S.,Rausch, Marvin D.,Bitterwolf, Thomas E.
, p. 27 - 31 (1993)
A reaction between cyclopentadienylsodium and ethyl benzoate in refluxing THF produces (benzoylcyclopentadienyl)sodium (4) in 70-80percent yield.Subsequent treatment of 4 in ethanol solution with thallium ethoxide affords (benzoylcyclopentadienyl)thallium (3) in nearly quantitative yield.Reactions of 3 with Mn(CO)5Br, Re(CO)5Br, 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 cymantrenyllithium5-C5H4Li)Mn(CO)3> provide a useful new route to bimetallic compounds.
Mixed rhenium and chromium carbonyl complexes of aroylcyclopentadienyl ligands
Gogan, Niall J.,De Silva, Sheila I.
, p. 1970 - 1972 (2008/10/08)
A series of (aroylcyclopentadienyl)rhenium tricarbonyls ((η5-RC6H4COC5H 4)Re(CO)3, R = H, o-CH3, p-CH3, p-OCH3, o-F, p-Cl) and their Cr(CO)3 ((η6-arene)Cr(CO)3) complexes have been prepared and characterized and studied by IR and 1H NMR spectroscopy. The carbonyl stretching frequencies of the Re(CO)3 group and the cyclopentadienyl proton resonances indicate π-electron withdrawal through the ligand system by the Cr(CO)3 group.
