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Abstract β‐(Perfluoroalkyl)tetraarylporphyrin radicals, generated by the reaction of I(CF2)nX (n = 2−5; X = I, Cl) with porphyrins in the presence of Na2S2O4/NaHCO3 in DMSO/CH2Cl2 or DMSO, undergo cyclizations at the ortho position of a neighbouring phenyl ring and/or adjacent pyrrolic unit to give five‐, six‐, seven‐, and eight‐membered fused porphyrins. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
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Zeng et al. (2005) studied this question.
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