Abstract
The reaction of oxetanes using heteropolyacids as catalysts was examined. The reaction of 3-ethyl-3-phenoxymethyloxetane (EPMO) was examined using commercial heteropolyacid without any treatment (PW12-com.) as a catalyst at 80 °C in chlorobenzene for 12 h, and the cationic ring-opening polymerization of EPMO proceeded smoothly to give the corresponding polyether poly(EPMO) in 89% yield. However, no polymer was obtained using treated heteropolyacid PW12-dry270 as a catalyst which is heated at 270 °C in vacuo before use. Furthermore, the cationic isomerization reaction of 3-acethyloxymethyl-3-ethyloxetane (AOEO) using PW12-dry270 was examined to give 4-ethyl-1-methyl-2,6,7-trioxabicyclo[2.2.2]octane (BOE) in 70% yield.
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Soga, T., Kudo, H., Nishikubo, T. et al. Polymerization and Isomerization of Oxetanes using Heteropolyacid as a Catalyst. Polym J 40, 832–836 (2008). https://doi.org/10.1295/polymj.PJ2008080
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DOI: https://doi.org/10.1295/polymj.PJ2008080
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