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  • 1985-1989  (1)
  • 1975-1979
  • Ring expansion  (1)
  • 1
    ISSN: 0009-2940
    Keywords: Iron complexes ; Radicals, organometallic ; Ring expansion ; Sandwich complexes ; Solvolysis ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Reaction of (Benzene)(cyclopentadienyl)iron Complexes with Organic Halides and the Ring Expansion of the Chloromethyl Derivatives of (Benzene)(cyclopentadiene) iron and (Cyclohexadienyl)(cyclopentadienyl)iron ComplexesThe 19-e complexes CpFe(C6R6), 1 (a: R = Me, b: R = H), react with organic halides R′X to form salts 1 · X, (benzene)(cyclopentadiene)iron complexes (C6R6)Fe(exo-5-R′C5H5), 2, and (cyclohexadienyl)(cyclopentadienyl)iron derivatives CpFeexo-5-R′C6H6), 3. The chloromethyl derivatives (C6R6)Fe[exo-5-(ClCH2)C5H5], 5a, b, readily undergo a ring expansion reaction, either as solids at ambient temperature or in methanol solution, to give ionic (benzene)(cyclohexadienyl)iron chlorides, 7a, b · Cl. The isomeric compounds CpFe[exo-6-(ClCH2)C6R6], 6a, b, solvolyze in methanol at 40°C to produce (cyclopentadienyl)(cycloheptatriene)iron chlorides, 8a, b · Cl.
    Notes: Die 19-e-Komplexe CpFe(C6R6), 1 (a: R = Me, b: R = H), reagieren mit organischen Halogeniden R′X unter Bildung von Salzen 1 · X, (Benzol)(cyclopentadien)eisen-Komplexen (C6R6)Fe(exo-5-R′C5H5), 2, und (Cyclohexadienyl)(cyclopentadienyl)eisen-Derivaten CpFeexo-5-R′C6H6), 3. Die Chlormethyl-Derivate (C6R6)Fe[exo-5-(ClCH2)C5H5], 5a, b, gehen als Feststoffe bei Raumtemperatur oder in methanolischer Lösung leicht eine Ringerweiterungsreaktionen ein und ergeben dabei ionische (Benzol)(cyclohexadienyl)eisen-chloride 7a, b, Cl. Die isomeren Verbindungen CpFe[exo-6-(ClCH2)C6R6], 6a, b, solvolysieren in Methanol bei 40°C zu (Cyclopentadienyl)(cycloheptatrien)eisen-chloriden, 8a, b · Cl.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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