KINETICS AND MECHANISM OF OXIDATION OF SUBSTITUTED BENZALDEHYDES BY QUINOLINIUM FLUOROCHROMATE

被引：16
作者：
PANDURANGAN, A
MURUGESAN, V
机构：
[1] Department of Chemistry, Anna University, Madras
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 1995年 / 54卷 / 01期
关键词：
D O I：
10.1007/BF02071196
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The kinetics of oxidation of a number of meta- and para-substituted benzaldehydes by quinolinium fluorochromate, QFC has been studied in aqueous acetic acid medium in the presence of acid. The products of oxidation are the corresponding benzoic acids. The reaction is first order each in substrate, QFC and HClO4. Electron-withdrawing substituents increase the rate, while electron-releasing substituents decrease it and the rate data obey Hammett's relationship. The reaction constant rho for the oxidation has a value of 1.16+/-0.07 at 30 degrees C. The activation enthalpies and entropies are calculated and the possible mechanism for oxidation is discussed.
引用
收藏
页码：173 / 180
页数：8
相关论文
共 10 条
1