Вид документа : Шифр издания : 54/R 30 Автор(ы) : Azev Y. A., Oparinaa E. D., Kovalev I. S., Slepukhin P. A., Novikova R. K. Заглавие : Reactions of quinoxaline with 3-methyl-1-phenylpyrazol-5-one Место публикации : Mendeleev Communications. - 2012. - Vol.22, №1. - С. 37-38 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): quinoxalines --phenylpyrazol--triethylamine Аннотация: Quinoxaline during the reaction with 3-methyl-1-phenylpyrazol-5-one in the presence of triethylamine at room temperature in dimethylsulfoxide eliminates o-phenylenediamine and gives 4,4’-methylene-bis(3-methyl-1-phenylpyrazol-5-one) and 1,1,2,2-tetrakis(5-methyl-2-oxo-2-phenyl-1,2-dihydro-3H-pyrazol-4-yl)ethane. The latter was proved to be the intermediate to form the above dipyrazolylmethane derivative Доп.точки доступа: Azev, Y. A.; Oparinaa, E. D.; Kovalev, I. S.; Slepukhin, P. A.; Novikova, R. K.