Pub No:
54
Title:
A Purification of meso-Tetraphenylporphyrin
Authors:
Rousseau, K. and David Dolphin
Journal:
Tetrahedron Lett.
Year:
1974
Pages:
48, 4251-4254
Abstract:
The title compound (I), prepared from PhCHO and pyrrole in EtCO2 H, contains tetraphenylchlorin (II). Small quantities, <1 g, of the mixture were purified by chromatography on dry alumina. Larger quantities were purified by oxidation by 2,3-dichloro-5,6-dicyanobenzoquinone, chemical removal of excess quinone and quinol by extraction with Na dithionite-NaOH, and crystalization of pure I, from CH 2Cl2/MeOH.

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