compounds were obtained in good to excellent yields through an uncatalyzed three-component reaction by treatment of secondary amines with polyformaldehyde and electron-rich alkenes in acetonitrile as solvent at ambient temperature. The reactions proceeded with the formation of iminium ions, through a Mannich-type reaction, as the key intermediates for the generation of the target products. Single crystal
提供了一种新颖,稳定的β-
氨基-N- / O-
半缩醛(即γ-
氨基醇)合成的实用,简单且一步一步的方法。通过在环境温度下在
乙腈中用
聚甲醛和富含电子的烯烃对仲胺进行处理,通过未催化的三组分反应以良好的产率获得了标题化合物。反应通过曼尼希型反应进行,形成
亚胺离子,作为生成目标产物的关键中间体。衍
生物4l的单晶X射线分析明确证实了所得化合物的结构和稳定性。