Twenty-one organosilyl- and organogermyl- substitutedferrocenes, most of which contain the M—M(M = Si or Ge) groupings, have been prepared and their 1H NMR spectra have been recorded. The preparations of some organic derivatives of silicon and germanium used in the synthesis are also described.
已经制备了二十一个有机甲硅烷基和有机锗烷基取代的二茂铁,其中大多数含有MM(M = Si或Ge)基团,并记录了它们的1 H NMR光谱。还描述了合成中使用的一些硅和锗的有机衍生物的制备方法。
Oxidation-alcoholysis of organosilyl- and organogermyl-substituted ferrocenes in the presence of ferric ions
作者:Tadao Kondo、Keiji Yamamoto、Makoto Kumada
DOI:10.1016/s0022-328x(00)81605-8
日期:1972.10
Eleven ferrocenederivatives 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 ferrocenederivatives and ferric ions gives rise to the corresponding substituted ferricenium ions
Acid-catalyzed alcoholysis of thirteen ferrocenes bearing MM (M = Si and/or Ge) substituents has been studied under ambient conditions. With a low concentration of hydrogen chloride (~0.053 M) no significant protodemetalation to give ferrocene occurred, while the MM bond underwent alcoholysis smoothly to form in most cases a 1,3-diferrocenyl- or a 1,1′-ferrocenylenedisiloxane (or digermoxane), depending