@dqcauchile

Hydrogen Bond Contribution to Preferential Solvation in Snar Reactions

, , , , , and . Journal of Physical Chemistry B, 117 (19): 5908-5915 (2013)
DOI: 10.1021/jp4005295

Abstract

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.

Links and resources

Tags