Highly selective n-alkanes oxidation to ketones with molecular oxygen catalyzed by SBA-15 supported rhenium catalysts

  • Mishra G
  • Machado K
  • Kumar A
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A series of tricarbonyl Re(V)complexes, i.e. [Re(CO)3(κ3-PN2)] (1), [Re(CO)3Br(κ2-H2PNO)] (2), and [Re(CO)3Br(κ2-HPN-Pip)] (3), have been covalently anchored over modified SBA-15 as supported catalysts. Remarkably, high catalytic turnover numbers from 2240 to 2857 with high ketone selectivity was obtained for both C5and C6-alkanes. Best oxidation condition was optimized by the variation of temperature, pressure, time and catalyst amount. A thermal stability test indicates that the catalysts are stable up to 200°C and ICP shows negligible metal loss from the catalyst surface, after the 7th catalytic cycle, allowing further use. © 2013 The Korean Society of Industrial and Engineering Chemistry.

Author-supplied keywords

  • Alkanes
  • Heterogeneous catalysis
  • Oxygen
  • Re catalyst
  • Selectivity

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  • Gopal S. Mishra

  • Kelly Machado

  • Anil Kumar

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