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Site-isolated porphyrin catalysts in imprinted polymers.
Journal article

Site-isolated porphyrin catalysts in imprinted polymers.

  • Burri E Institut de Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
  • Ohm M
  • Daguenet C
  • Severin K
  • 2005-06-25
Published in:
  • Chemistry (Weinheim an der Bergstrasse, Germany). - 2005
General Chemistry
English A meso-tetraaryl ruthenium porphyrin complex having four polymerizable vinylbenzoxy groups (2) has been synthesized by reaction of pyrrole with 4-(vinylbenzoxy)benzaldehyde and subsequent metalation with [Ru3(CO)12]. The porphyrin complex was immobilized by copolymerization with ethylene glycol dimethacrylate. The resulting polymer P2 was found to catalyze the oxidation of alcohols and alkanes with 2,6-dichloropyridine N-oxide without activation by mineral acids. Under similar conditions, the homogeneous catalyst 2 was completely inefficient. By using diphenylaminomethane and 1-aminoadamantane as coordinatively bound templates during the polymerization procedure, the molecularly imprinted polymers P3 and P4 have been synthesized. Compared with the polymer P2, the imprinted catalysts displayed a significantly increased activity with rate enhancements of up to a factor of 16.
Language
  • English
Open access status
closed
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Persistent URL
https://sonar.ch/global/documents/78017
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