5,10-Diphenyltripyrrane, a useful building block for the synthesis of meso-phenyl substituted expanded macrocycles

Abstract
Pyrrole and benzaldehyde were condensed under acidic conditions to produce a mixture of 5-phenyldipyrromethane and 5,10-diphenyltripyrrane; the tripyrrane was utilized in syntheses of meso-phenylsapphyrins, meso-diphenylpentaphyrin and meso-hexaphenylhexaphyrin.

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