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Oxovanadium(IV) complexes as homogeneous catalyst-aerobic epoxidation of olefins

Mohebbi, S ; Sharif University of Technology | 2005

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  1. Type of Document: Article
  2. DOI: 10.1016/j.apcata.2004.10.005
  3. Publisher: 2005
  4. Abstract:
  5. The novel N2O2 unsymmetrical tetradentate Schiff bases complexes are used as catalysts for the selective aerobic oxidation of cyclohexene. In general, conversion percentages decrease with increasing ΔEp and decreasing Eredox 0′. Catalytic activity increases with decrease of the number of electron-donating groups and the catalytic selectivity varies according to the types of substituents in the ligands. The catalytic system described here is an inexpensive method for selective oxidation of olefins, with advantages of high activity, selectivity, re-usability and short reaction times. Analysing GC and redox potential results shows a moderate correlation between selectivity and activity. © 2004 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Catalyst activity ; Catalyst selectivity ; Nitrogen oxides ; Olefins ; Oxidation ; Vanadium compounds ; Aerobic selective oxidation ; Cyclohexene ; Ligands ; Oxovanadium complexes ; Selective epoxidation ; Vanadyl tetradentate Schiff base complexes ; Catalysts
  8. Source: Applied Catalysis A: General ; Volume 278, Issue 2 , 2005 , Pages 263-267 ; 0926860X (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0926860X04008191