Abstract
13C NMR spectra of some azole series have been investigated: 2-pyridylbenzimidazoles, 2-pyridylimidazo [4,5-b]-pyridines, 2-pyridylimidazo[4,5-c]-pyridines, analogous oxazole compounds, as well as their mono- and bisquaternary salts. Some problems, related to the structure of these compounds in solution, have been discussed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
R. J. Pugmire and D. M. Grant,J. Am. Chem. Soc.,93, 1880 (1971).
E. Kleinpeter and R. Borsdorf,J. Prakt. Chem.,315, 765 (1973).
V. A. Loparev, L. I. Larina, T. I. Vakul'skaya, M. F. Larin, O. B. Nefedova, E. F. Shibanova, and M. G. Voronkov,Org. Magn. Reson.,15, 219 (1981).
V. A. Loparev, L. I. Larina, T. I. Vakul'skaya, E. F. Shibanova, I. A. Titova, M. G. Voronkov, and E. E. Liepin'sh,Org. Magn. Reson.,20, 212 (1982).
B. J. Blackburn, D. W. Anknow, and H. M. Hutton,Can. J. Chem.,60, 2987 (1982).
E. Grundeman, H. Graubaum, D. Martin, and E. Schiewald,Magn. Reson. Chem.,24, 21 (1986).
P. Savarino, R. Carpignano, G. Viscardi, E. Barni, and G. Ferrero,J. Heterocycl. Chem.,26, 387 (1989).
R. Carpignano, P. Savarino, E. Barni, and G. Viscardi,J. Heterocycl. Chem.,21, 561 (1984).
P. Savarino, G. Viscardi, E. Barni, and G. DiModica,J. Heterocycl. Chem.,24, 1053 (1987).
P. Savarino, R. Carpignano, G. Viscardi, E. Barni, and G. DiModica,J. Heterocycl. Chem.,25, 1675 (1988).
G. B. Barlin and M. D. Fenn,Austr. J. Chem.,34, 1341 (1981).
A. V. Tretyakov, L. I. Rudaya, A. V. El'tsov, M. F. Larin, and V. A. Loparev,Magn. Reson. Chem.,23, 7 (1985).
S. Chimichi, P. Tedeschi, R. Nesi, and F. Ponticelli,Magn. Reson. Chem.,23, 86 (1985).
J. C. Lindon, J. M. Williams, and P. Barraclough,Magn. Reson. Chem.,24, 55 (1986).
P. Barraclough, D. Firmin, R. Iyer, W. R. King, J. C. Lindon, M. S. Nobbs, S. Smith, C. I. Wharton, and J. M. Williams,J. Chem. Soc. Perkin Trans., Part 2, 1839 (1988).
P. Barraclough, J. C. Lindon, M. S. Nobbs, and J. M. Williams,Magn. Reson. Chem.,27, 992 (1989).
M. Schumacher and H. Gunther,J. Am. Chem. Soc.,104, 4167 (1982).
L. A. Fedorov, P. Savarino, G. Viscardi, A. I. Rebrov, and E. Barni,Izv. Akad. Nauk SSSR, Ser. Khim., 299 (1992).
E. Barni and P. Savarino,J. Heterocycl. Chem.,14, 937 (1977).
E. Barni and P. Savarino,J. Heterocycl. Chem.,15, 17 (1978).
E. Barni and P. Savarino,J. Heterocycl. Chem.,16, 1579 (1979).
E. Barni and P. Savarino,J. Heterocycl. Chem.,16, 1583 (1979).
E. Barni, P. Savarino, E. Pelizzetti, and G. Rothenberger,Helv. Chim. Acta,64, 1943 (1981).
Additional information
V. I. Vernadskii Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow 117975. Torino University, Italy. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 4, pp. 866–872, April, 1992.
Rights and permissions
About this article
Cite this article
Savarino, P., Fedorov, L.A., Viskardi, G. et al. 13C NMR spectra of azolopyridines and their quaternary salts. Russ Chem Bull 41, 672–677 (1992). https://doi.org/10.1007/BF01150890
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01150890