Description:
<jats:p> During the epoxidation of ethylene using iron meso-tetrakis(2,6-dichlorophenyl)porphyrin chloride and iodosopentafluorobenzene several N-alkylporphyrins were formed. The major product was 21-carboxymethyl-5,10,15,20-tetrakis(2,6-dichlorophenyl)porphyrin. This was derived, by oxidation, from the corresponding 21-formylmethyl complex which in turn was obtained from the initially formed N-hydroxyethylporphyrin, a compound not isolated due to its ready oxidation. Keywords: N-alkylporphyrins, suicide labelling, cytochrome P-450, hemin catalysis, epoxidation, oxidation. </jats:p>