Effect of nucleophile on the activation parameters of transesterification of 4-nitrophenyl benzoates

被引：6

作者：

Os'kina, I. A. ^{[1
]}

Vlasov, V. M. ^{[1
]}

机构：

[1] Russian Acad Sci, Vorozhtsov Novosibirsk Inst Organ Chem, Siberian Div, Novosibirsk 630090, Russia

来源：

RUSSIAN JOURNAL OF ORGANIC CHEMISTRY | 2010年 / 46卷 / 03期

关键词：

POTASSIUM CARBONATE; KINETICS; ESTERS; 4-CHLOROPHENOL; DERIVATIVES; HYDROLYSIS; ACIDS;

D O I：

10.1134/S1070428010030048

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Activation parameters of the reaction of 4-nitrophenyl benzoates with benzenethiol in the presence of potassium carbonate in dimethylformamide were determined. The entropies of activation for the reactions of unsubstituted 4-nitrophenyl benzoate and 4-nitrophenyl benzoates having donor substituents are positive. The relative contributions of the enthalpy and entropy of activation to the Gibbs energy of activation are discussed. Variation of the activation parameters upon replacement of benzenethiol by 4-chlorophenol is analyzed.

引用

页码：326 / 330

页数：5

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