Abstract

AbstractThe product distribution of the acid‐mediated condensation of dipyrromethanes and aldehydes was studied and a novel type of macrocycle phlorin‐dipyrrin conjugate was isolated and identified by X‐ray analysis. The generality of its formation from sterically hindered dipyrromethanes and pentafluorophenyldipyrromethane was demonstrated. The influence of the meso‐aryl groups on the stability of the phlorin was studied. The reported two‐step synthesis of a phlorin derivative is one of the simplest routes leading to this type of molecules. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)

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