The new representatives of functionally substituted pyrazoles were synthesized and their interactions with secondary amines studied. It found that the interaction of 3,4-bis(diethylamino)but-2en-1-ones with hydrazine hydrate gave rise to 3-alkyl-5-(diethylaminomethyl)pyrazoles. Appropriate 1acetyl and 1-(2-chloromethyl carbonyl)pyrazoles were synthesized through the acylation of the last products with acetyl-and monochloroacetyl chloride in the presence of triethylamine. It revealed that 1-(2-chloromethyl carbonyl)pyrazoles react with twofold quantity of diethylamine and morpholine under mild reaction conditions to form new polyfunctional pyrazole derivatives. The composition and structure of the synthesized compounds were confirmed by IR-and NMR 1 Н-spectroscopy. It established that 3-methyl-and 3-ethyl-5-(diethylaminomethyl) pyrazoles were biologically active substances out of synthesized functionally pyrazole derivatives.
Путем взаимодействия 1-алкил-4-амино-бут-2-ен-1-онов с гидразингидратом были синтезированы 3-алкил-5-диалкиламинометилпиразолины. Изучена реакция 3-алкил-5диалкиламинометилпиразолинов с дибромэтаном и аллил бромидом. Реакции проводили в присутствии КОН в водной среде при относительно низких температурах. Выходы целевых продуктов достаточно высокие и составляют 63-70%. Структуры синтезированных соединений подтверждены методами ИК и ЯМР 1 Н спектроскопии. Установлено, что новые производные пиразолинов показывают высокую биологическую активность. Их биологическая активность заметно выше активности исходных пиразолинов. Ключевые слова; биспиразолины, гидразингидрат, алкилирование, аллилпиразолины, биологическая активность.
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