Silicon-bridged ferrocenophanes, synthesis

B. Synthesis, Properties, and Ring-Opening Polymerization of Silicon-Bridged 1 ]Ferrocenophanes... 

The discovery of the anionic ring-opening polymerization of silicon-bridged[l]ferrocenophanes enabled the synthesis of well-defined, near-monodisperse poly(ferrocenylsilane) homo- and block copolymers. PFS was combined with polystyrene [38], polyisoprene [39], poly(dimethylsilox-ane) [40], poly(ethylene oxide) [41], poly(ferrocenylphenylphosphine) [42], poly(aminoalkyl methacryate) [43] and recently with poly(methyl methacrylate) [44,45] blocks. 

Sheridan JB, Gomez-Elipe P, Manners I (1996) Transition metal-catalysed ting-opening copolymerization of silicon-bridged [l]ferrocenophanes and sUa- or disilacyclobutanes synthesis of poly(ferrocenylsilane)-poly(carbosrlane) random copolymers. Macromol Rapid Commun 17 319-324... 

Bartle-Scott A, Resendes R, Manners I (2003) Transition metal-catalyzed ring-opening polymerization of silicon-bridged [l]ferrocenophanes in the presence of functional silanes molecular weight control and synthesis of telechelic poly(ferrocenylsilanes). Macromol Chem Phys 204 1259-1268... 

Gomez-Elipe, P., Resendes, R., Macdonald, P.M., and Manners, I. (1998) Transition metal catalyzed ring-opening polymerization (ROP) of silicon-bridged [l]ferrocenophanes facile molecular weight control and the remarkably convenient synthesis of poly(ferrocenes) with regioregular, comb, star, and block architectures. Journal of the American Chemical Society, 120,8348. 

Another impressive example is the facile cleavage of Si—C(Cp) bonds in strained [1]-ferrocenophanes with bridging silicon. This behaviour is the basis for the synthesis of high-molecular-weight poly(ferrocenylsilanes) (equation 47) and will be described in more detail in Section II.E.l. 

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