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- Title
Pyridyl-substituted porphyrins: II. Synthesis and basic properties of dipyridylporphyrins.
- Authors
Ivanova, Yu. B.; Semeikin, A. S.; Glazunov, A. V.; Mamardashvili, N. Zh.
- Abstract
5,15-Bis(pyridin-2-yl)-, 5,15-bis(pyridin-3-yl)-, and 5,15-bis(pyridin-4-yl)-substituted 3,7,13,17-tetramethyl-2,8,12,18-tetraethylporphyrins were synthesized, and their acid-base properties in ethanol-sulfuric acid were studied by spectrophotometric titration. Concentration ranges for the existence of mono- and dicationic forms of 5,15-dipyridylporphyrins and the corresponding ionization constants were determined. The effect of pyridine fragments on the basic properties of alkyl-substituted porphyrins was discussed.
- Subjects
PORPHYRINS spectra; ASYMMETRIC synthesis; CHEMICAL processes; PHYSICAL constants; VOLUMETRIC analysis; SULFURIC acid
- Publication
Russian Journal of Organic Chemistry, 2010, Vol 46, Issue 6, p917
- ISSN
1070-4280
- Publication type
Article
- DOI
10.1134/S1070428010060230