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Photo-oxidation of Magnesium Porphyrins and Formation of Protobiliviolin

Nature volume 215, pages 733–735 (1967)Cite this article

Abstract

As part of a series of experiments on the photo-oxidation of vinylporphyrins1, I have studied complexes of protoporphyrin dimethyl ester with various transition metals. Non-fluorescent complexes of protoporphyrin dimethyl ester with iron, nickel, cobalt, copper and silver underwent no alteration in their spectral and chromatographic properties when they were irradiated in benzene with the light of a 500 W lamp. Complexes of lead with the protoporphyrin ester dissociated more rapidly under this treatment than the corresponding cadmium compounds. Zinc protoporphyrin slowly photo-oxidized to a brown unidentified compound.

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  1. The Institute of Medical Research, The Royal North Shore Hospital of Sydney, Crows Nest, N.S.W.

    J. BARRETT

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  1. J. BARRETT
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BARRETT, J. Photo-oxidation of Magnesium Porphyrins and Formation of Protobiliviolin. Nature 215, 733–735 (1967). https://doi.org/10.1038/215733a0

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