Recently synthesized tetrabenzoporphyrins and tetranaphthoporphyrins
with extended π-systems and bearing 4-bromophenyl
substituents were subjected to palladium-catalyzed amination by
primary and secondary amines. The yields of the tetraamino
derivatives were markedly dependent on the nature of amine reactant.
porphyrins - protonations - palladium - aminations - homogeneous catalysis
