利用乙二胺及其衍生物的Mannich反应在无催化剂的条件下合成了9种Salen型新的配体,化合物1和2在无溶剂条件下合成,化合物3a～3g在Salen配体中引入呋喃杂环,对其与金属的配位提供了多种可能性.所得化合物结构经元素分析,IR,MS,1H NMR等确认,同时用X射线单晶衍射测定了化合物1和3b的晶体结构. Nine new Mannich reactions of ethylenediamine and its derivatives were synthesized in the absence of catalyst. Compounds 1 and 2 were synthesized under solvent-free conditions. Compounds 3a ~ 3g were introduced into Salen ligand Heterocycles provide many possibilities for their coordination with metals. The structures of the obtained compounds were confirmed by elemental analysis, IR, MS and 1H NMR. The crystal structures of compounds 1 and 3b were also determined by X-ray single crystal diffraction.