Вид документа : Статья из журнала Шифр издания : 54/C 98 Автор(ы) : Chupakhin O. N., Charushin V. N., Naumova L. M., Rezvukhin A. I., Klyuev N. A. Заглавие : Cyclization of n-alkylazinium cations with bisnucleophiles. 5. Cyclic adducts and recyclization products in the reactions of benzodiazinium cations with imido esters Место публикации : Chemistry of Heterocyclic Compounds. - 1981. - Vol. 17, № 11. - С. 1134-1138 Примечания : Bibliogr. : p. 1138 (23 ref.) ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): methylene group--benzodiazinium cations--esters Аннотация: The reaction of imido esters that contain an active methylene group with four isomeric benzodiazinium cations, viz., the 1-methylquinoxalinium, 2-methylcinnolinium, 3-methylquinazolinium, and 2-methylphthalazinium cations, was investigated. The 1-methylquinoxalinium cation reacts with imido esters via a scheme involving anionic [3- +2]-cycloaddition to form tetrahydropyrrolo[2,3-b]quinoxalines. The 2-methylcinnolinium cation forms an adduct with an annelated pyrrole ring. Under the influence of imido esters, the 3-methylquinazolinium cation undergoes recyclization to a 2,3-disubstituted quinoline. The 2-methylphthalazinium cation is inert in this reaction Доп.точки доступа: Chupakhin, O. N.; Charushin, V. N.; Naumova, L. M.; Rezvukhin, A. I.; Klyuev, N. A.