Kinetic studies of the triethylenediamine-catalyzed hydrolysis of 1,3-diphenylurea in dioxane

被引：1

作者：

Furuya, Yoshiaki ^{[1
]}

Itoho, Kazuo

Fukutaka, Sakiko

机构：

[1] Kumamoto Univ, Fac Engn, Dept Ind Chem, Kumamoto, Japan

[2] Daiichi Coll Pharmaceut Sci, Fukuoka, Japan

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1970年 / 43卷 / 12期

关键词：

D O I：

10.1246/bcsj.43.3846

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The rate of the hydrolysis of 1,3-diphenylurea (abbreviated as DPU) in dioxane in the presence of triethylenediamine (TED) was followed by ultraviolet spectrophotometry. The rate of the reaction satisfied the following equation: v = {k(2)-k(3h)[H2O]}[DPU][H2O] + [k(4uh)[H2O]-k(3u)}[DPU](2)[H2O] + [k(3c)-k(4ch)[H2O]}[TED][DPU][H2O] + {k(5cuh)[H2O]-k(4cu)} x [TED][DPU](2)[H2O]. probable mechanism which involves a nucleophilic attack of the lone pair of the O-atom of water and of the N-atom of TED on the carbonyl C-atom of DPU, passing through an ion pair of quaternary ammonium salt, is discussed.

引用

页码：3846 / 3849

页数：4