New polymers for catalytic carbene transfer: electropolymerization of tetrafluorenylporphyrinruthenium carbon monoxide

Condensation of pyrrole with 2-fluorenecarboxaldehyde yields meso-tetrafluorenylporphyrin as a new building block. After ruthenium insertion, oxidative electropolymerization of tetrafluorenylporphyrinruthenium (II) carbonyl complexes can be used to coat Pt electrodes with polymeric films. These insoluble polymeric materials are able to catalyze the heterogeneous cyclopropanations and 2,3 sigmatropic rearrangements with ethyl diazoacetate after being removed from the electrode.