caa a22 4500 606194568 CHVBK 20210128100914.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10934-014-9892-6 doi (NATIONALLICENCE)springer-10.1007/s10934-014-9892-6 Bidentate salen Cu(II) complex functionalized on mesoporous MCM-41 as novel nano catalyst for the oxidative coupling of thiols into disulfides using urea hydrogen peroxide (UHP) [Elektronische Daten] [Mohsen Nikoorazm, Arash Ghorbani-Choghamarani, Farshid Ghorbani, Houri Mahdavi, Zahra Karamshahi] Functionalized Copper(II) complex into nano dimensional mesoreactor was successfully prepared. The Copper(II) complex with N-O donor Schiff base ligand was readily trapped into mesoporous silica MCM-41 through the post grafting method. N-O Chelating Schiff-base-MCM-41 has been derived from 5-bromo-salicylaldehyde and 3-aminopropyltriethoxysilane which was functionalized on MCM-41 via silicon alkoxide route. This compound was characterized by FT-IR, TGA, small angle X-ray diffraction patterns, ICP/MS analysis and N2 sorption-desorption analysis. The catalytic property of Cu-salen-MCM-41 was considered for the preparation of disulfides using urea hydrogen peroxide as oxidant. The reaction progress is simple and proceeds under mild and heterogeneous conditions in acetonitrile at the ambient of temperature. The corresponding disulfides have been achieved with high purity and good to excellent yields; also, no over oxidation to sulfoxide or sulfone was observed in all cases. The catalyst can be recovered and reused several times without significant loss of stability and activity. Springer Science+Business Media New York, 2014 Nanoporous nationallicence Copper(II) nationallicence Schiff base nationallicence Urea hydrogen peroxide nationallicence Thiols nationallicence Disulfides nationallicence Nikoorazm Mohsen Department of Chemistry, Faculty of Science, Ilam University, P. O. Box 69315516, Ilam, Iran aut Ghorbani-Choghamarani Arash Department of Chemistry, Faculty of Science, Ilam University, P. O. Box 69315516, Ilam, Iran aut Ghorbani Farshid Department of Environment, Faculty of Natural Resource, University of Kurdistan, 66177-15177, Sanandaj, Iran aut Mahdavi Houri Department of Chemistry, Faculty of Science, Ilam University, P. O. Box 69315516, Ilam, Iran aut Karamshahi Zahra Department of Chemistry, Faculty of Science, Ilam University, P. O. Box 69315516, Ilam, Iran aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 261-267 1380-2224 22:1<261 2015 22 10934 https://doi.org/10.1007/s10934-014-9892-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-014-9892-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nikoorazm Mohsen Department of Chemistry, Faculty of Science, Ilam University, P. O. Box 69315516, Ilam, Iran aut NATIONALLICENCE 700 1- Ghorbani-Choghamarani Arash Department of Chemistry, Faculty of Science, Ilam University, P. O. Box 69315516, Ilam, Iran aut NATIONALLICENCE 700 1- Ghorbani Farshid Department of Environment, Faculty of Natural Resource, University of Kurdistan, 66177-15177, Sanandaj, Iran aut NATIONALLICENCE 700 1- Mahdavi Houri Department of Chemistry, Faculty of Science, Ilam University, P. O. Box 69315516, Ilam, Iran aut NATIONALLICENCE 700 1- Karamshahi Zahra Department of Chemistry, Faculty of Science, Ilam University, P. O. Box 69315516, Ilam, Iran aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 261-267 1380-2224 22:1<261 2015 22 10934