Condensation of 2,3-dichloropyrazine with 2-aminobenzenetellurole and 2-amino-5-methylbenzenetellurole, generated in situ by reduction of the corresponding ditellurides, resulted in the formation of novel 10H-pyrazino[2,3-b][1,4]benzotellurazine and its 7-methyl derivative. The products were purified via their well-crystallized 5,5-dibromo derivatives. X-ray crystallographic analysis of the title compound indicates that it has a pronounced V-shape and forms hydrogen-bonded dimers. Te, N-containing heterocycles have the potential of offering access to supramolecular assemblies.

中文翻译：

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10H-Pyrazino[2,3-b][1,4]benzotellurazine，一种新型的含碲杂环系统

通过还原相应的二碲化物原位生成 2,3-二氯吡嗪与 2-氨基苯碲和 2-氨基-5-甲基苯碲的缩合，形成新型 10H-吡嗪并[2,3-b][1,4 ]苯并碲嗪及其7-甲基衍生物。产物通过结晶良好的 5,5-二溴衍生物进行纯化。标题化合物的 X 射线晶体学分析表明它具有明显的 V 形并形成氢键二聚体。Te，含氮杂环有可能提供超分子组装。