Synthesis of 1H-[1,2,3]triazolo[4,5-e][1,2,3,4]tetrazine 4,6-dioxide and its methyl derivatives
作者:A. A. Voronin、V. P. Zelenov、A. M. Churakov、Yu. A. Strelenko、V. A. Tartakovsky
DOI:10.1007/s11172-015-0922-6
日期:2015.3
1H-[1,2,3]Triazolo[4,5-e][1,2,3,4]tetrazine 4,6-dioxide (3) was synthesized by reduction of 1-hydroxy-1H-[1,2,3]triazolo[4,5-e][1,2,3,4]tetrazine 5,7-dioxide (1) with PCl3, reduction of 1-methoxy-1H-[1,2,3]triazolo[4,5-e][1,2,3,4]tetrazine 5,7-dioxide (4) with Na2S2O4, and by the reaction of compound 4 with Et3N. Both methylation of compound 3 with diazomethane and reaction of Ag-salt of compound 3 with MeI occur at the triazole cycle to give all three possible isomers. The structures of the synthesized compounds were confirmed by 1H, 13C, 14N, and 15N NMR spectroscopy.
1H-[1,2,3]三唑并[4,5-e][1,2,3,4]四嗪 4,6-二氧化物(3)是由 1-羟基-1H-[1,2,3]三唑并[4,5-e][1,2,3,4]四嗪 5、7-二氧化物 (1) 与 PCl3 的还原反应、1-甲氧基-1H-[1,2,3]三唑并[4,5-e][1,2,3,4]四嗪 5,7- 二氧化物 (4) 与 Na2S2O4 的还原反应以及化合物 4 与 Et3N 的反应。化合物 3 与重氮甲烷的甲基化反应以及化合物 3 的 Ag 盐与 MeI 的反应都发生在三唑周期,从而得到所有三种可能的异构体。合成化合物的结构通过 1H、13C、14N 和 15N NMR 光谱得到了证实。