Efficient oxidative coupling of thiols and oxidation of sulfides using UHP in the presence of Ni or Cd salen complexes immobilized on MCM-41 mesoporous as novel and recoverable nanocatalysts

被引：99

作者：

Nikoorazm, Mohsen ^{[1
]}

Ghorbani-Choghamarani, Arash ^{[1
]}

Mandavi, Houri ^{[1
]}

Esmaeili, Saied Mostaffa ^{[1
]}

机构：

[1] Ilam Univ, Fac Sci, Dept Chem, Ilam, Iran

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2015年 / 211卷

关键词：

MCM-41; mesoporous; Urea hydrogen peroxide; Sulfoxides; Disulfides; Schiff base complex; UREA-HYDROGEN-PEROXIDE; SILICA SULFURIC-ACID; SELECTIVE OXIDATION; HALOCHROMATES/SILICA GEL; MAGNETIC NANOPARTICLE; RECYCLABLE CATALYST; SULFOXIDES; EPOXIDATION; REAGENT; OXIDANT;

D O I：

10.1016/j.micromeso.2015.03.011

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Oxidation of sulfides to sulfoxides and oxidative coupling of thiols into their corresponding disulfides were carried out using urea-hydrogen peroxide (UHP) as oxidizing agent and immobilized Ni or Cd complexes on MCM-41 as stable, heterogeneous, efficient and recoverable catalysts under mild reaction conditions. These supported complexes were characterized by FT-IR spectroscopy, thermogravimetric analysis (TGA), powder X-ray diffraction (XRD) and N-2 adsorption-desorption isotherms. A variety of aromatic and aliphatic sulfides and thiols with different functional groups were successfully oxidized with short reaction times in good to excellent yields at room temperature. Catalysts were easily recovered and reused for several consecutive runs without significant loss of their catalytic activity and efficiency. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：174 / 181

页数：8

共 42 条

[1] Mononuclear and dinuclear salen type copper(II) Schiff base complexes: Synthesis, characterization, crystal structures and catalytic epoxidation of cyclooctene [J].