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- Title
Synthesis and basic properties of 5-aza-2,3,7,8,12,13,17,18-octamethylporphyrin.
- Authors
Ivanova, Yu. B.; Chyrakhin, Yu. I.; Semeikin, A. S.; Kumeev, R. S.; Mamardashvili, N. Zh.
- Abstract
5-Aza-2,3,7,8,12,13,17,18-octamethylporphyrin was synthesized and its basic properties were studied by means of spectrophotometric titration. Protonation of nitrogen atoms in the tetrapyrrolic macrocycle with the ethanolic sulfuric acid is found to be a two-step process. Corresponding ionization constants and the concentration ranges of existence of mono-and dicationic forms of the azaporphyrin under investigation are evaluated.
- Subjects
PORPHYRINS; ORGANIC synthesis; SPECTROPHOTOMETRY; VOLUMETRIC analysis; SULFURIC acid; MACROCYCLIC compounds
- Publication
Russian Journal of General Chemistry, 2008, Vol 78, Issue 10, p1972
- ISSN
1070-3632
- Publication type
Article
- DOI
10.1134/S1070363208100265