Heterocyclic 2-aminoazo compounds, prepared by ortho-coupling of primary heterocyclic amines with (het)arene diazonium salts, can by transformed by reaction with strong acylating reagents or nitrosyl sulfonic acid into new hetarene-condensed 2-(het)aryl-1,2,4-triazinium and 2-(het)aryl-1,2,3,4-tetrazinium salts, respectively. Their structures could be unambiguously elucidated by means of IR, mass, and NMR spectroscopy as well as, in few special examples, by means of X-ray analysis.

中文翻译：

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（杂）芳烃缩合的2-（杂）芳基-1,2,4-三嗪鎓盐和2-（杂）芳基-1,2,3,4-四嗪鎓盐的制备和表征

通过将伯杂环胺与（杂）亚芳基重氮盐进行邻偶合制得的杂环2-氨基偶氮化合物可通过与强酰化剂或亚硝酰基磺酸反应转化为新的戊烯缩合的2-（杂）芳基-1， 2,4-三嗪鎓盐和2-（杂）芳基-1,2,3,4-四嗪鎓盐。可以通过红外，质谱和NMR光谱以及在少数特殊示例中通过X射线分析明确地阐明其结构。