Facile synthesis of hexahydropyrazino[2,3-e]pyrazines from 3-aminomethyl-1,2,4-triazoles
作者:Dmytro M. Khomenko、Roman O. Doroschuk、Vladimir V. Trachevskii、Sergiu Shova、Rostyslav D. Lampeka
DOI:10.1016/j.tetlet.2016.01.068
日期:2016.3
The cyclocondensation of aminomethyl-1,2,4-triazoles and glyoxal gives hexahydropyrazino[2,3-e]pyrazines in good yields. 1H and 13C NMR spectra of the title compounds are described and the molecular structure of 4a,5,6,10a,11,12-hexahydro-(4aR,10aR)-[1,2,4]triazolo[1,5-a][1,2,4]triazolo[1′,5′:1,6]pyrazino[2,3-e]pyrazine was established by single crystal X-ray analysis.
氨基甲基1,2,4-三唑和乙二醛的环缩合以良好的收率得到六氢吡嗪并[2,3- e ]吡嗪。描述了标题化合物的1 H和13 C NMR光谱,以及4a,5,6,10a,11,12-六氢-(4a R,10a R)-[1,2,4]三唑[1]的分子结构通过单晶X射线分析建立了,5- a ] [1,2,4]三唑并[1',5':1,6]吡嗪并[2,3- e ]吡嗪。