Aromatic Nucleophilic Substitution (S_NAr) of <i>meso</i>-Nitroporphyrin with Azide and Amines as an Alternative Metal Catalyst Free Synthetic Approach To Obtain <i>meso</i>-<i>N</i>-Substituted Porphyrins

Abstract

Aromatic nucleophilic substitution reaction of the nitro group of meso-nitroporphyrins with azide and various amines was achieved and represents an alternative procedure to C-N coupling reactions usually needed to obtain such meso-N-substituted porphyrins in good yields.