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- Title
Highly Efficient Oxidative Coupling of Thiols and Oxidation of Sulfides in the Presence of MCM-41@Tryptophan-Cd and MCM-41@Tryptophan-Hg as Novel and Recoverable Nanocatalysts.
- Authors
Molaei, Somayeh; Tamoradi, Taiebeh; Ghadermazi, Mohammad; Ghorbani-Choghamarani, Arash
- Abstract
Abstract: Two heterogeneous catalysts, MCM-41@Tryptophan-Cd and MCM-41@Tryptophan-Hg, were synthesized by immobilization of Cd or Hg complexes on MCM-41 as novel, efficient, recoverable and stable nanocatalysts for Oxidation of sulfides to sulfoxides and oxidative coupling of thiols into their corresponding disulfides. These functionalized complexes were characterized by FT-IR spectroscopy, thermogravimetric analysis (TGA), powder X-ray diffraction (XRD) and N2 adsorption-desorption isotherms. The designed catalysts successfully oxidized a variety of sulfides and thiols with short reaction times in high to excellent yields at room temperature and recovered for several times without significant loss of their catalytic activity.Graphical Abstract: Synthesis of Cd and Hg tryptophan complexes immobilized on to surface of mesoporous MCM-41 under mild reaction conditions has been presented. After characterization of these catalysts, their catalytic activity has been investigated for the synthesis of sulfoxide and disulfides derivatives.<graphic></graphic>
- Subjects
OXIDATIVE coupling; COUPLING reactions (Chemistry); COUPLINGS (Gearing); TRYPTOPHAN; THIOLS
- Publication
Catalysis Letters, 2018, Vol 148, Issue 7, p1834
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-018-2379-3