Dibenzylmethylsulphonium fluoroborate (I), when treated with aqueous sodium hydroxide in the presence of cyclohepta-amylose, prefers the Sommelet over the Stevens rearrangement by the formation of an inclusion complex, while rate measurements reveal that cyclohepta-amylose retards slightly the rearrangement reactions.
M. Mitani, T. Tsuchida and K. Koyama, J. Chem. Soc., Chem. Commun., 1974, 869 DOI: 10.1039/C39740000869
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