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Porphyrin Stability and Absorption Red Shift via BODIPY Extension
C. Jiao, L. Zhu, J. Wu*
National University of Singapore and Agency for Science, Technology and Research (A*Star), Singapore
20 July 2011 (online)
Extended porphyrins 1 and 2 are prepared via an acid-catalyzed condensation, oxidation, and complexation sequence followed by oxidative cyclization. Porphyrin 1 containing one fused boron dipyrromethene (BODIPY) unit is obtained in very high yield, while the yield of 2 is degraded due to the harsher cyclization conditions.