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Structure Determination of Some Nitro-5,10,15,20-tetrakis(3-methoxyphenyl)porphyrins Using Simple NMR Techniques

Ostrowski S., Łopuszyńska B., Mikus A.

Polish Journal of Chemistry

2006

Vol. 80, nr 7

1209-1215

The structures of some nitrosubstituted meso-tetraarylporphyrins were determined by a simple comparison of their 1H NMRspectra, and confirmed by NOE experiments. On the basis of these investigations it was found that in the meso-tetraphenylporphyrin (meso-TPP) and its 3-methoxy, 3-methyl, and 3-chloro-substituted derivatives (in the meso-aryl rings), the electrophilic nitration occurred in position 4-.

Gas-liquid chromatographic analysis of the neutral fraction obtained from elder

Olszewska E., Kroszczyński W., Łopuszyńska B.

Acta Chromatographica

2004

No. 14

237-240

Gas–liquid chromatography has been used to investigate the neutral fraction obtained from the fruits of elder. The fraction contained vanillin and numerous unidentified compounds. Identities are suggested for some of these compounds.