Sulfide oxidation with H2O2 catalyzed by manganese complex of N,N′,N"-tris(2-hydroxypropyl)-1,4,7-triazacyclononane

被引：11

作者：

Feng, Xi-mei ^{[1
]}

Wang, Zhen ^{[1
]}

Bian, Ning-sheng ^{[1
]}

Wang, Zhi-lin ^{[1
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China

来源：

INORGANICA CHIMICA ACTA | 2007年 / 360卷 / 15期

基金：

中国国家自然科学基金;

关键词：

sulfide oxidation; hydrogen peroxide; manganese complex; N,N ',N ''-tris(2-hydroxypropyl)-1,4,7-triazacyclononane;

D O I：

10.1016/j.ica.2007.05.055

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

[MnL](ClO4)(2) (L = N, N', N ''-tris(2-hydroxypropyl)-1,4,7-triazacyclononane) has been tested for catalyzing sulfide oxidation. In the presence of this complex, ethyl phenyl sulfide, butyl sulfide and phenyl sulfide are completely oxidized to the corresponding sulfoxides and sulfones with H2O2 as the oxidant. 2-Chloroethyl phenyl sulfide oxidation yield 2-chloroethyl phenyl sulfone and phenyl vinyl sulfone. In ethyl phenyl sulfide oxidation, effects of complex and H2O2 concentration and temperature on the reaction rate have been discussed. Through controlling reaction conditions, ethyl phenyl sulfoxide and ethyl phenyl sulfone may be produced selectively. The UV-Vis and electron paramagnetic resonance (EPR) studies on catalyst solution indicate that metal centre of the complex is transformed from Mn(II) to Mn(IV) after the addition of H2O2. At 25 degrees C, rate constant for ethyl phenyl sulfide oxidation is 4.38 x 10(-3) min(-1). (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：4103 / 4110

页数：8

共 57 条

[51] Oxidation of sulfides to sulfoxides and sulfones with 30% hydrogen peroxide under organic solvent- and halogen-free conditions [J].