
Bulletin of the Chemical Society of Japan p. 2643 - 2644 (1988)
Update date:2022-08-16
Topics:
Kakimoto, Masa-aki
Seri, Takuya
Imai, Yoshio
Pinacols afforded the corresponding pinacolones in high yields in the presence of the polyphosphoric acid trimethylsilyl ester (PPSE) at a temperature above 80 deg C.Tetraphenylethylene oxide, in addition to benzopinacolone, was obtained in the reaction of benzopinacol under milder conditions.The solvent effect suggested that the rearrangement proceeded via the carbonium-ion intermediate.
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