A Novel Route to the 5-[2-(Diphenylphosphanyl)ethyl]-1,2,3,4-tetramethylcyclopentadienyl Ligand - Synthesis and Crystal Structure of [η5:η1-C5(CH3)4CH2CH2PPh2]ZrCl3.THFстатьяИсследовательская статья
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Аннотация:The five-step synthesis of the first transition metal complex with the C5(CH3)4CH2CH2PPh2 ligand [h5:h1-C5(CH3)4CH2CH2PPh2]ZrCl3*THF (11), starting from the known compound [2-(dimethylamino)ethyl]tetramethylcyclopentadiene (4) via 4,5,6,7-tetramethylspiro[2,4]hepta-4,6-diene (7), is reported. Lithium cyclopentadienide LiC5(CH3)4CH2CH2PPh2 (9), silylated cyclopentadiene (CH3)3SiC5(CH3)4-CH2CH2PPh2 (10) and cyclopentadiene HC5(CH3)4CH2-CH2PPh2 (12) were isolated and characterised as pure substances. The crystal structure of the zirconium complex 11 was established by X-ray diffraction analysis.