5-substituted-1H-imidazol-3-ium-3-yl)-3,6-dihydro-1,2,4,5-tetrazin-3-ides (3a–3z, 3aa–3ak) was synthesized with medium to good yield by the reaction of 3,6-dichloro-1,2,4,5-tetrazine with a variety of substituted imidazoles in the presence of trace water in solvents. The quinoidal-like structure of these compounds was demonstrated via spectroscopic methods, X-ray diffraction techniques, and computational chemistry
一系列 6-氧代-3-(1,2,4,5-取代-
1H-咪唑-3-鎓-3-基)-3,6-二氢-
1,2,4,5-四嗪- 3,6-二
氯-
1,2,4,5-四嗪与多种取代
咪唑在微量
水存在下反应合成了3- ides ( 3a–3z , 3aa–3ak ),收率中等至良好在溶剂中。这些化合物的醌状结构通过光谱方法、X 射线衍射技术和计算
化学得到了证明。此外,使用
水- 18 O通过高分辨率质谱(HRMS)证明四嗪酮中的氧来自溶剂中的
水。此外,还提出了芳香族亲核取代的可能机制。