An efficient and selective benzylic oxidation of tetralin to 1-tetralone on Cu(II) immobilized γ-Fe 2 O 3 @SBA-15 magnetic nanocatalyst in green water medium without base or additives
| Autor: | Chinna Krishna Prasad Neeli, David Raju Burri, Hari Prasad Reddy Kannapu, Seetha Rama Rao Kamaraju, Venkat Narayana Kalevaru |
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| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Thermogravimetric analysis Base (chemistry) 1-Tetralone Chemistry Process Chemistry and Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences chemistry.chemical_compound X-ray photoelectron spectroscopy Tetralin Physical and Theoretical Chemistry 0210 nano-technology Alkyl Nuclear chemistry BET theory |
| Zdroj: | Molecular Catalysis. 453:74-84 |
| ISSN: | 2468-8231 |
| DOI: | 10.1016/j.mcat.2018.04.030 |
| Popis: | A novel Cu(II)/γ-Fe2O3@SBA-15 magnetic nanocatalyst has been synthesized aiming at possessing high surface area, magnetic property, highly dispersed and stabilized Cu(II) complex using SBA-15 by sequential magnetization and Cu(II) immobilization with Fe(acac)3 and Cu(OAc)2 precursors. The nanocatalyst was well authenticated by different techniques like BET surface area, X-ray diffraction, X-ray photoelectron spectroscopy, FT-IR, vibrating sample magnetometer and thermogravimetric analysis. Cu(II)/γ-Fe2O3@SBA-15 was found to be effective for the benzylic oxidation of tetralin to 1-tetralone using TBHP at mild reaction conditions in green water medium even in absence of any bases or additives. The heterogeneity of catalyst was confirmed by hot filtering test and further reused for at least 4 times without significant loss in catalytic activity. Ease of catalyst separation, its reusable capacity, wider applicability of alkyl aromatics and importantly reaction operation in water as green medium by elimination of hazardous organic solvents are the commendable merits of this catalyst. |
| Databáze: | OpenAIRE |
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