Alkylation of 5,10,15-tris(3,5-di-t-butyl-4-hydroxyphenyl)-20-(4-pyridyl)porphyrin

Article abstract of DOI:10.1016/S0040-4020(01)89354-6

The title porphyrin was prepared and alkylated with heptyl bromide, benzyl bromide and 4-nitrobenzyl bromide in DMF. Only with benzyl bromide did atrial oxidation occur, leading to further alkylation on the macrocyclic nitrogens and N-oxide formation on t