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World Scientific Publishing, Journal of Porphyrins and Phthalocyanines, 03(16), p. 316-323

DOI: 10.1142/s1088424612500368

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Separation and atropisomer isolation of ortho -halogenated tetraarylporphyrins by HPLC: Full characterization using 1D and 2D NMR

Journal article published in 2012 by Carlos J. P. Monteiro, Mariette M. Pereira, Nuno P. F. Gonçalves, Carla G. Carvalho, Ângela C. B. Neves, Artur R. Abreu, Luis G. Arnaut ORCID, Artur M. S. Silva ORCID
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

The separation and isolation of the four atropisomers of ortho-halogenated tetraarylporphyrins by semi-preparative HPLC is described. Full characterization and assignment of all 1 H and 13 C resonances of 5,10,15,20-tetrakis(2-fluoro or 2-chlorophenyl)porphyrins and 5,10,15,20-tetrakis(2-fluoro or chloro-5-N-ethylsulfamoylphenyl)porphyrins by 1D and 2D NMR techniques is reported. The outcome is an unequivocal evidence of the chlorosulfonation of meso-tetra(2-haloaryl)porphyrins on the 5′-position.