作者:Martin J. Smith、Iain M. Blake、William Clegg、Harry L. Anderson
DOI:10.1039/c8ob00491a
日期:——
A family of push–pull quinoidal porphyrin monomers has been prepared from a meso-formyl porphyrin by bromination, thioacetal formation, palladium-catalyzed coupling with malononitrile and oxidation with DDQ. Attempts at extending this synthesis to a push–pull quinoidal/cumulenic porphyrin dimer were not successful. The crystal structures of the quinoidal porphyrins indicate that there is no significant