Synthesis of new functionalized 3,7-diazabicyclo[3.3.1]nonanes by aminomethylation of the Guareschi imides
作者:Anastasiya N. Khrustaleva、Konstantin A. Frolov、Victor V. Dotsenko、Nicolai A. Aksenov、Inna V. Aksenova、Sergey G. Krivokolysko
DOI:10.1016/j.tetlet.2017.10.069
日期:2017.12
the Guareschi imides were treated with primary aliphatic amines and an excess of formaldehyde, 2,4-dioxo-3,7-diazabicyclo[3.3.1]nonane-1,5-dicarbonitriles were obtained in varying yields (15–67%). The structure of 9,9-dimethyl-7-(2-methylpropyl)-2,4-dioxo-3,7-diazabicyclo[3.3.1]nonane-1,5-dicarbonitrile was studied by X-ray diffraction analysis.
首次研究了4,4-二烷基-2,6-二氧杂哌啶-3,5-二腈(Guareschi酰亚胺)的氨基甲基化。当Guareschi酰亚胺用脂肪族伯胺和过量的甲醛处理时,会以不同的收率获得15-67%的2,4-二氧代-3,7-二氮杂双环[3.3.1]壬烷-1,5-二碳腈。 。通过X射线衍射分析研究了9,9-二甲基-7-(2-甲基丙基)-2,4-二氧代-3,7-二氮杂双环[3.3.1]壬烷-1,5-二腈的结构。