A cyclic transition state that consists of a perrhenate anionic moiety and an allylic cationic group is proposed in the mechanism of the allylic rearrangement catalyzed by a trioxorhenium catalyst that leads to the isomerization of allyl alcohols by 1,3-transposition of a hydroxy group. Ab initio calculations on this transition state reveal that it is much lower in energy than the transition state found in 1,3-acyloxy shifts in allyl esters. The effects of microsolvation on the transition states and their kinetic relevance are also investigated
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Bellemin‐Laponnaz et al. (1999) studied this question.