作者:Mohammad N. Mawlood、Mikhail A. Potapov、Irina V. Ledenyova、Oleg A. Kozaderov、Nadezhda V. Stolpovskaya、Khidmet S. Shikhaliev、Andrey Yu. Potapov
DOI:10.1007/s10593-020-02821-2
日期:2020.10
Coupling of 3-substituted 1,2,4-triazole-5-diazonium salts with ethyl acetoacetate afforded 1,2,4-triazol-5-ylhydrazones, the reaction of which with dimethylformamide dimethyl acetal leads to the formation of the corresponding readily separable 4-[2-(dimethylamino)-vinyl][1,2,4]triazolo[5,1-c][1,2,4]triazine-3-carboxylates. New pyrido[4,3-e][1,2,4]triazolo[5,1-c][1,2,4]triazin-6(7H)-ones were synthesized
3-取代的1,2,4-三唑-5-重氮盐与乙酰乙酸乙酯的偶联得到1,2,4-三唑-5-基azo,其与二甲基甲酰胺二甲基乙缩醛的反应导致形成相应的易于分离的4- [2-(二甲基氨基)-乙烯基] [1,2,4]三唑并[5,1- c ] [1,2,4]三嗪-3-羧酸盐。新的吡啶并[4,3- e ] [1,2,4]三唑并[5,1- c ] [1,2,4]三嗪-6(7 H)-是通过吡嗪与伯的缩合反应合成的。胺类。