Tautomerism of the natural anthraquinones physcion and emodin and their analogs

The 9,10-1,10-anthraquinoid tautomer was found to be characteristic of physcion and emodin and their analogs in solutions using spectrophotometric, quantum-chemical, and correlation methods. Ionization of these compounds was accompanied by a shift in tautomeric equilibrium. In alkaline solutions 1,10-anthraquinoid anions with a single α-hydroxy that were stabilized by an intramolecular H-bond were formed. Tautomerism occurred in both the ground and excited states of the molecules. ©2005 Springer Science+Business Media, Inc.

Авторы
Номер выпуска
5
Язык
Английский
Страницы
501-507
Статус
Опубликовано
Том
41
Год
2005
Организации
  • 1 Russian University of the Friendship of Nations, ul. Miklukho-Maklaya, 6, 117198, Moscow, Russian Federation
Ключевые слова
Chrysazin; Chrysophanol; Citreorosein; Correlation analysis; Electronic absorption spectra; Emodin; Ionization; Natural anthraquinones; Physcion; Quantum-chemical calculation; Tautomerism
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/3459/