Porphyrins with four azole substituents in meso positions: X-ray crystal structure of meso-tetrakis-(1-benzylpyrazol-4-yl)-porphyrin at 200 K

Article abstract of DOI:10.1016/0040-4020(95)00159-6

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