Вид документа : Статья из журнала Шифр издания : 54 Автор(ы) : Charushin V. N., Sorokin N. N., Chernyshev A. I., Baklykov V. G., Ponizovskii M. G., Chupakhin O. N. Заглавие : 1H and 13C NMR spectra of tetrahydroquinoxalines condensed with six-membered heterocycles [Электронный ресурс] Место публикации : Magnetic Resonance in Chemistry. - 1986. - Vol. 24, № 9. - С. 777-782 Систем. требования: http://onlinelibrary.wiley.com/doi/10.1002/mrc.1260240909 Примечания : Bibliogr. : p. 782 (16 ref.). - 26.10.15 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): 1h nmr--13c nmr--condensed tetrahydroquinoxalines Аннотация: The 1H and 13C NMR spectra of tetrahydroquinoxalines condensed with pyridazine, pyrazine, oxazine, oxadiazine, thiadiazine or triazine rings have been measured in DMSO-d6 solution. The effects of six-membered heterocycles on 1H and 13C chemical shifts and the values of one-bond 1J(CH) and vicinal 3J(HH) coupling constants for the ring junction fragment are considered. The differences between the 1H and 13C spectral parameters of tetrahydroquinoxalines annelated with five- or six-membered heterocycles with the same set of heteroatoms attached to the ring junction carbons are also discussed. Доп.точки доступа: Charushin, V. N.; Sorokin, N. N.; Chernyshev, A. I.; Baklykov, V. G.; Ponizovskii, M. G.; Chupakhin, O. N.