Chemistry Letters, Vol.33, No.1, 40-41, 2004
Pyrene-fused porphyrins: Annulation reactions of meso-pyrenylporphyrins
We prepared novel pyrene-fused porphyrins via the oxidative intramolecular ring closure reactions of meso-pyrenylporphyrin. The excitation energies and the oxidation potentials of the isolated dark-colored pyrene-fused porphyrins were significantly low compared with those of the corresponding precursors.