Selenium dioxide catalysed oxidation of acetic acid hydrazide by bromate in aqueous hydrochloric acid medium

被引：6

作者：

Yalgudre, R. S. ^{[1
]}

Gokavi, G. S. ^{[1
]}

机构：

[1] Shivaji Univ, Dept Chem, Kinet & Catalysis Lab, Kolhapur 416004, Maharashtra, India

来源：

JOURNAL OF CHEMICAL SCIENCES | 2012年 / 124卷 / 04期

关键词：

Acetic acid hydrazide; oxidation; bromate; kinetics; selenium dioxide; catalysis; MECHANISM; EFFICIENT; KINETICS; ALCOHOLS; 6-FORMYLPTERIN; COMPLEXES; MICROWAVE; ION;

D O I：

10.1007/s12039-012-0286-5

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Selenium dioxide catalysed acetic acid hydrazide oxidation by bromate was studied in hydrochloric acid medium. The order in oxidant concentration, substrate and catalyst were found to be unity. Increasing hydrogen ion concentration increases the rate of the reaction due to protonation equilibria of the oxidant. The mechanism of the reaction involves prior complex formation between the catalyst and substrate, hydrazide, followed by its oxidation by diprotonated bromate in a slow step. Acetic acid was found to be the oxidation product. Other kinetic data like effect of solvent polarity and ionic strength on the reaction support the proposed mechanism.

引用

页码：821 / 826

页数：6

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