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η2-BENZOPHENOZIRCONOCEN, EIN MODELL FUER DAS REACTIONSVERHALTEN EINES METALLAOXIRANS?
Erker, Gerhard,Rosenfeldt, Frank
, p. 29 - 42 (2007/10/02)
Thermolysis of η2-benzoyl(phenyl)zirconocene yields the η2-benzophenonzirconocene complex 2, isolated as a dimer. 2 exhibits an ambivalent reactivity pattern.The formation of five-membered metallacycles from 2 and olefinic hydrocarbons possibly proceeds analogous to reactions of "normal" metal-olefin ?-complexes.However, both reactions with the electron-deficient olefins dimethylfumarate and -maleate and the behavior towards electrophilic and protic reagents as well as aromatic hydrocarbons might be interpreted in terms of a metallaoxirane-character of 2.
