Zur Chemie der 1,2,4-Triazine; XIII<sup>1</sup>. Synthese von 1<i>H</i>-[1,2,4] Triazino[5,6-<i>e</i>][1,3,4]thiadiazinen und 1,2,4-Triazolo[4,3-<i>d</i>][1,2,4]triazinen
作者:Hans Neunhoeffer、Marita Dostert、Heinz Hammann
DOI:10.1055/s-1988-27705
日期:——
Chemistry of 1,2,4-Triazines; XIII. Synthesis of 1H-[1,2,4]Triazino [5,6-e][1,3,4]thiadiazines and 1,2,4-Triazolo[4,3-d][1,2,4]triazines The reaction of 6-amino-5-hydrazino-1,2,4-triazines with (thioacylthio)acetic acids affords 6-amino-5-(N 2-thioacylhydrazino)-1,2,4-triazines while the reaction with ethyl dithioacetate yields 8-amino-1,2,4-triazolo[4,3-d] [1,2,4]triazines. The 6-amino-5-(N 2-thioacylhydrazino)-1,2,4-triazines cyclize in aqueous mineral acid to give 1H-[1,2,4]triazino [5,6-e] [1,3,4]thiadiazines. Some further reactions of 5-hydrazino-1,2,4-triazines are reported.
1,2,4-三嗪的化学;XIII.合成 1H-[1,2,4]三嗪并[5,6-e][1,3,4]噻二嗪和 1,2,4-三唑并[4,3-d][1,2,4]三嗪 6-amino-5-hydrazino-1,2、4-三嗪与(硫代乙酰硫)乙酸反应生成 6-氨基-5-(N 2-硫代乙酰肼)-1,2,4-三嗪,而与二硫代乙酸乙酯反应则生成 8-氨基-1,2,4-三唑并[4,3-d][1,2,4]三嗪。6- 氨基-5-(N 2-硫代酰基肼)-1,2,4-三嗪在矿酸水溶液中环化,生成 1H-[1,2,4]三嗪并[5,6-e] [1,3,4]噻二嗪。报告还介绍了 5-肼基-1,2,4-三嗪的一些进一步反应。