Аннотация
Preferential solvation in aromatic nucleophilic substitution reactions is discussed using a kinetic study complemented with quantum chemical calculations. The model system is the reaction of a series of secondary alicyclic amines toward phenyl 2,4,6-trinitrophenyl ether in aqueous ethanol mixtures of different compositions. From solvent effect studies, it is found that only piperidine is sensitive to solvation effects, a result that may be traced to the polarity of the solvent composition in the ethanol/water mixture, which points to a specific electrophilic solvation in the aqueous phase.
- 2,4,6-trinitrophenyl
- acetonitrile,
- amines
- aromatic
- behavior,
- binary
- chemical
- dqcauchile
- ether,
- kinetics,
- mixtures,
- molecules,
- nucleophilic-substitution,
- piperidine,
- probes,
- solvent
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