Biomimetic Catalytic System Driven by Electron Transfer for Selective Oxygenation of Hydrocarbon


Hydrocarbon oxyfunctionalization is a crucial industrial process. Most metallic catalysts require higher temperatures and often show lower selectivities. One of the intellectual approaches is the mimicry for bio-oxidation. We have established a biomimetic system with a nonmetallic redox center, composed of anthraquinones, N-hydroxyphthalimide, and zeolite HY, for selective hydrocarbon oxygenation by molecular oxygen. Selectivity of 95.8% for acetophenone and 66.2% conversion were accomplished for oxygenation of ethylbenzene at temperatures as low as 80 °C. The redox cycle, driven by one-electron transfer and product orientation by Zeolite HY, opens up the possibility of mimicking bio-oxidation under mild conditions.



Keywords and Phrases

1 Phenylethanol; 1 Phenylethylhydroperoxide; 2 Ethylanthraquinone; Acetophenone; Anthraquinone Derivative; Biomimetic Material; Ethylbenzene; Hydrocarbon; Hydroperoxide Derivative; N Hydroxyphthalimide; Oxygen; Phthalimide Derivative; Unclassified Drug; Binding Site; Catalysis; Catalyst; Chemical Interaction; Chemical Model; Chemical Reaction; Control Strategy; Decomposition; Dissociation; Electron Transport; Enzyme Substrate Complex; Hydrogen Bond; Molecular Mimicry; Oxidation Reduction Reaction; Oxygenation; Porosity; Protein Domain; Proton Transport; Reaction Analysis; Synthesis; Technique; Biomimetic Materials; Catalysis; Hydrocarbons; Oxidation-Reduction; Oxygen; Phthalimides; Spectroscopy, Fourier Transform Infrared; Zeolites; Charge exchange; Hyperbaric oxygenation

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Article - Journal

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© 2004 American Chemical Society (ACS), All rights reserved.

Publication Date

01 Sep 2004