Oxidation-alcoholysis of organosilyl- and organogermyl-substituted ferrocenes in the presence of ferric ions |
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Authors: | Tadao KondoKeiji Yamamoto Makoto Kumada |
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Affiliation: | Department of Synthetic Chemistry, Kyoto University, Kyoto 606 Japan |
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Abstract: | Eleven ferrocene derivatives bearing the MM (M = Si and/or Ge) substituent bonded directly to the ring have been found to undergo alcoholysis at the MM linkage in the presence of either ferric chloride or ferricenium tetrachloroferrate. It is suggested that the oxidation-reduction process between the ferrocene derivatives and ferric ions gives rise to the corresponding substituted ferricenium ions, which, in turn may readily undergo a nucleophilic attack by alcohol at the adjacent highly polarized MM bond. The reaction is thus very similar to the acid-catalyzed alcoholysis of these ferrocene derivatives. |
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