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- Title
Enthalpy-entropy correlations in reactions of 2,4-dinitrophenyl benzoate with phenols in the presence of potassium hydrogen carbonate and with potassium phenoxides in dimethylformamide.
- Authors
Khalfina, I. A.; Vlasov, V. M.
- Abstract
Temperature dependences of the relative reactivity of substituted phenols RCHOH in the presence of potassium hydrogen carbonate and of potassium phenoxides RCHOK toward 2,4-dinitrophenyl benzoate in dimethylformamide were studied using the competitive reactions technique. Correlation analysis of the relative rate constants k/ k and differences in the activation parameters (ΔΔ H and ΔΔ S) of competitive reactions revealed the existence of two isokinetic series for each type of nucleophiles. The mechanism of transesterification was interpreted in terms of an approach based on analysis of the effect of substituent in the nucleophile on the activation parameters.
- Subjects
PHENOL; STATISTICAL correlation; BENZOATES; NUCLEOPHILIC reactions; HYDROGEN; DIMETHYLFORMAMIDE; TRANSESTERIFICATION
- Publication
Russian Journal of Organic Chemistry, 2011, Vol 47, Issue 6, p845
- ISSN
1070-4280
- Publication type
Article
- DOI
10.1134/S1070428011060030