KINETIC-MODEL FOR ACID-CATALYZED HYDROLYSIS OF BENZOHYDROXAMIC ACID

被引：32

作者：

GHOSH, KK

RAJPUT, SK

KRISHNANI, KK

机构：

[1] School of Studies in Chemistry, Ravishankar University, Raipur

来源：

JOURNAL OF PHYSICAL ORGANIC CHEMISTRY | 1992年 / 5卷 / 01期

关键词：

D O I：

10.1002/poc.610050106

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The kinetics of the hydrolysis of benzohydroxamic acid have been investigated in hydrochloric, sulphuric and perchloric acids in 10% (v/v) dimethyl sulphoxide-water at 55-degrees-C. Activation parameters were also determined. Rate correlation by the Cox-Yates excess acidity method shows an A-2 mechanism involving rapid pre-equilibrium protonation of the substrate followed by rate-limiting attack of water at the carbonyl carbon atom to form a tetrahedral intermediate which collapses, in a fast step, to the products.

引用

页码：39 / 43

页数：5

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