Fluoride ion catalyzed isomerization of 2-aryl-F-butenes [1]
Review articleOpen access

AbstractA kinetic study of the fluoride ion catalyzed isomerization of a series of 2-arylF1-butenes shows the reactions to be pseudo first order in olefin at constant fluoride ion concentration. The resultant Hammett plot is non-linear witb a concave downward break near σ=0. A two step mechanism involving formation of a carbanionic intermediate is proposed. A change in the rate limiting step causes the break in the Hammett plot. Carbanion trapping experiments are also reported.

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