Pub No:
21
Title:
Porphyrinogens and Porphodimethenes, Intermediates in the Synthesis of meso-Tetra-phenylporphins from Pyrroles and Benzaldehyde
Authors:
David Dolphin
Journal:
J. Heterocycl. Chem.
Year:
1970
Pages:
7, 275-283
Abstract:
The reaction between pyrroles and benzaldehyde in refluxing HOAc gives meso-tetraphenylporphins and chlorins. The initial condensations give a porphyrinogen which undergoes an acid catalyzed autoxidation to porphyrin via a porphodimethene. The chlorin is shown to be derived from the reduction of porphyrin.

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