Вид документа : Статья из журнала Шифр издания : 54/G 33 Автор(ы) : Gein V.L., Zamaraeva T. M., Slepukhin P. A. Заглавие : A novel four-component synthesis of ethyl 6-amino-4-aryl-5-cyano-2,4-dihydropyrano[2,3-c]pyrazole-3-carboxylates Примечания : Bibliogr. : p. 4528 (26 ref.) Цена : Б.ц. ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): multicomponent reaction --aromatic aldehydes--sodium diethyloxaloacetate Аннотация: Ethyl 6-amino-4-aryl-5-cyano-2,4-dihydropyrano[2,3-с]pyrazole-3-carboxylates were synthesized via a four-component reaction of the sodium salt of diethyloxaloacetate, an aromatic aldehyde, hydrazine hydrate, and malononitrile. The products were obtained in moderate to high yields. Доп.точки доступа: Zamaraeva, T. M.; Slepukhin, P. A.