The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. Computed Properties of C13H18FNO, 105812-81-5, Name is (3S,4R)-4-(4-Fluorophenyl)-3-hydroxymethyl-1-methylpiperidine, SMILES is CN1C[C@@H](CO)[C@H](C2=CC=C(F)C=C2)CC1, in an article , author is Lawrence, Jean-Marc I. A., once mentioned of 105812-81-5.
Dehydrative Re2O7-Catalyzed Approach to Dihydropyran Synthesis
Monoallylic 1,3- and 1,5-diols undergo Re2O7-mediated ionization to form allylic cations that engage in cyclization reactions to form dihydropyran products. The reactions give the 2,6-trans-stereoisomer as the major products as a result of minimizing steric interactions in a boat-like transition state. The results of these studies are consistent with cationic intermediates, with an intriguing observation of stereochemical retention in one example.
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Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem