Synthesis of tetraphenylsubstituted porphyrins by interaction of 5-aryldipyrromethanes with 4-substituted benzaldehydes

Synthesis of tetraphenyl substituted porphyrins with tert-butyl and methoxycarbonyl groups in meso-aryl radicals is described. It is shown that, during the condensation of dipyrromethanes with substituted benzaldehydes, a rearrangement occurs with the formation of a mixture of isomeric porphyrins. The character of these rearrangements depends on the position of substituents in the starting compounds.