Efficient methods for the synthesis of 1,2,3,4-tetrazine 1,3-dioxides annulated with five-membered polynitrogen heterocycles
作者:V. P. Zelenov、M. E. Minyaev
DOI:10.1007/s11172-021-3094-6
日期:2021.2
3-dioxides (TDOs) from appropriate amines based on the annulation with nitronium sulfates in organic solvents and also in HNO3 solutions using weak acid anhydrides. The synthesis of TDOs using P2O5 in an HNO3 solution requires the preliminary thermal decomposition of intermediate nitro(poly)phosphoric acids. The structure of 2-methyl-2H-[1,2,3]triazolo[4,5-e]-[1,2,3,4]tetrazine 1,5,7-trioxide was established
新的有效方法是为杂环1,2,3,4-四嗪-1,3-二氧化物根据与在有机溶剂中硝硫酸盐的环,并且还以从HNO适当的胺(TDO的)的合成中开发的3种使用弱酸酐溶液。在HNO 3溶液中使用P 2 O 5合成TDO要求对中间体硝基(聚)磷酸进行初步热分解。通过X射线衍射建立了2-甲基-2 H- [1,2,3]三唑并[4,5- e ]-[1,2,3,4]四嗪1,5,7-三氧化物的结构。