Polymerization of spiropentane

Polymerization of Spiropentane. The study of polymerization by opening of the three carbon ring has given a picture of the reactivity of spiropentane with respect to various catalysts. 

Polymerization of Spiropentane, Methylenecylobutane, and Bicyclo-propyle. One compound in the spirane hydrocarbon series is especially worthy of attention—namely spiropentane (Afs), which is an isomer of both isoprene and methylenecyclobutane (M9) see Equation 13. From a structural point of view, if one considers that spiropentane is the linear combination of the p orbital and the sp orbital associated with each ring of spiropentane, four equivalent sp hybrid orbitals may be formed. Under these conditions, spiropentane constitutes a highly p-type unsaturated entity that is thus especially suitable for polymerization. 

Polymerization of Spiropentane. The preparation of spiropentane (19) is important, since other compounds are formed (for example,... 

Polymerization of Spiropentane by Metal-Halide Complexes. Heterogeneous-phase polymerization with trialkylaluminum metal-halide... 

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