Vinyl Nucleophilic Substitution. III. Reaction of 9-Methylfluorenate Anion with β-Halo-α,β-Difluorostyrenes. Influence of Ion Associationстатья
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:Kinetics of reaction of 9-methylfluorenate anion with α,β,β-trifluorostyrene and (Z)-β-chloro-α,β-difluorostyrene in THF was studied. Influence of 18-crown-6 ether, [2,2,2]-criptand, and KBPh4 additives and of replacing THF for ethyl ether on the reaction rate singlets higher reactivity of free ions and solvent-separated ion pairs of 9-methylfluorenate anion as compared to the contact ion pairs.