In SN2 reactions of alkyl halides, the order of reactivity is RI . RBr . RCl . RF.Alkyl
Chapter 22, Problem 22.6(choose chapter or problem)
In SN2 reactions of alkyl halides, the order of reactivity is RI . RBr . RCl . RF.Alkyl iodides are considerably more reactive than alkyl fluorides, often by factorsas great as 106. All 1-halo-2,4-dinitrobenzenes, however, react at approximatelythe same rate in nucleophilic aromatic substitutions. Account for this difference inrelative reactivities.
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