Вид документа : Шифр издания : 54/R 30 Автор(ы) : Sosnovskikh V. Ya., Korotaev V.Yu., Barkov A. Yu., Sokovnina A. A., Kodess M. I. Заглавие : Reaction of 2-(trifluoromethyl)chromones with pyridoxal: Formation of 1-benzopyranooxepino- and 1-benzopyranopyranopyridines Место публикации : Journal of Fluorine Chemistry. - 2012. - Vol.141. - С. 58-63 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): alcoholic hydroxy group --phenyl hydroxy group --pyridoxal Аннотация: Pyridoxal undergoes oxa-Michael initiated ring closure with 2-(trifluoromethyl)chromones giving 11a,13-dihydro-6H-1-benzopyrano[3′,2′:6,7]oxepino[3,4-c]pyridin-6-ones and 6H,11aH-1-benzopyrano[3′,2′:5,6]pyrano[2,3-c]pyridin-6-ones. Participation of alcoholic hydroxy group of pyridoxal in the initial oxa-Michael addition leads to the former product and that of the phenyl hydroxy group to the later one Доп.точки доступа: Sosnovskikh, V. Ya.; Korotaev, V.Yu.; Barkov, A. Yu.; Sokovnina, A. A.; Kodess, M. I.; Кодесс Михаил Исаакович