Anionic Bimolecular Reactions Involving Neutral Electrophiles

Anionic Bimolecular Reactions Involving Neutral Electrophiles [Pg.153]

The transition states loose ion-pairs in so far as they involve charge-delocalized anions, thereby enhancing polarity compared with the ground states (in which the ion-pairs are tighter), because of an increase in anionic dissociation as the more bulky product anion is formed. As a consequence, specific microwave effects, directly connected to polarity enhancement, should depend on the structure of reactive ion-pairs in the GS [Pg.154]

This duality in the behavior of some Sn2 reactions can be foreseen and observed (vide infra) by comparing reactions involving hard or soft nucleophilic anionic reagents according to the cation and the leaving group. [Pg.154]

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