Tetrahedron

Porphyrins with Four Azole Substituents in meso Positions: X-Ray Crystal Structure of Meso-tetrakis-(1-benzylpyrazol-4-yl)-porphyrin at 200 K

…, J Elguero, C Fernández-Castaño, C Foces-Foces

Index: Werner, Andreas; Sanchez-Migallon, Ana; Fruchier, Alain; Elguero, Jose; Fernandez-Castano, Cristina; Foces-Foces, Concepcion Tetrahedron, 1995 , vol. 51, # 16 p. 4779 - 4800

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Citation Number: 27

Abstract

Several new porphyrins have been prepared in improved yields using an established method which was adapted to formylpyrazoles bearing on the pyrazole N1-nitrogen protective groups. The deprotection of N-para-methoxybenzyl and SEM protected meso- pyrazolylporphyrins afforded the first known pyrazolylporphyrins with pyrazole free NH groups. The crystal and molecular structure of meso-tetrakis-1-(benzyl-pyrazol-4-yl) ...