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 degrees 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.
Yang
Guanyu
G
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.
Ma
Yinfa
Y
Xu
Jie
J
D040761:Biomimetic Materials / Q000737:chemistry*; D002384:Catalysis; D006838:Hydrocarbons / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D010797:Phthalimides / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D017641:Zeolites / Q000737:chemistry
D006838:Hydrocarbons; D010797:Phthalimides; D017641:Zeolites; C037437:N-hydroxyphthalimide; D010100:Oxygen