设计合成了Keggin型钨锗酸联咪唑盐(H4biim)[H2GeW12O40] ·18H2O(1b,H2biim=2,2'-联咪唑),并将其用于催化合成环己酮乙二醇缩酮反应.通过X射线单晶衍射、红外光谱(FT-IR)、紫外光谱(UV)、热重·差热(TG-DTA)、粉末衍射(XRD)等技术手段对催化剂1b进行了表征.较系统地研究了反应物料比、催化剂用量、反应时间等因素对催化反应的影响.在n(环己酮)∶n(乙二醇)=1∶1.4,n(1b,以W计)∶n(环己酮)=1∶260,反应2h的优化反应条件下,目标化合物产率达90％,催化剂可循环使用,表现出良好的催化稳定性.
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