Treatment of meso- or β-nitroporphyrins with deuteriated lithium hydroxide and [N,N,S-2H3]2-aminobenzenethiol in dry N,N-dimethylformamide results in replacement of the nitro group with deuterium; the regiospecificity of the process is demonstrated by synthesis of [20-2H1]mesoporphyrin IX dimethyl ester.
M. J. Crossley, J. J. Gosper and M. G. Wilson, J. Chem. Soc., Chem. Commun., 1985, 1798 DOI: 10.1039/C39850001798
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