Synthesis of facially-encumbered porphyrins. An approach to light-harvesting antenna complexes

Article abstract of DOI:10.1016/S0040-4039(00)74308-5

2,6-di- and 2.4.6-tri-benzyloxybenzaldehydes are converted to the respective octa- and dodeca-benzyloxy porphyrins in 9-52% yields via the two-step one-flask room-temperature porphyrin synthesis.