Novel Synthetic Approach Toward C-Substituted Piperazine Derivatives<i>via</i>C-N Bonds Formation of α-Bromoarylethanones and Ethanolamine
作者:Gao Cao、Ai-Xi Hu、Yan-Li Xie、Zhen Zhou
DOI:10.1002/jhet.1088
日期:2013.2
A new method for the synthesis of novel C-substituted piperazine derivatives bearing aryl substituents on 2,6-C positions has been developed by one-pot three-component sequential reaction of α-bromoarylethanones with ethanolamine in the presence of formic acid. The structure of the novel compounds was established by nuclear magnetic resonance (NMR), mass spectrometry (MS), and elemental analysis. In
通过α-溴代蒽酮的一锅三组分顺序反应,开发了一种新的合成2,6-C位带有芳基取代基的新型C-取代哌嗪衍生物的新方法。 乙醇胺在甲酸的存在下进行。通过核磁共振(NMR),质谱(MS)和元素分析确定了新化合物的结构。另外,通过单X射线晶体学测定了4e的晶体结构,并提出了可能的反应机理。