中文摘要：

以离子液体BMImH：PO。为溶剂和催化剂，对重要薄膜晶体管（TFT液晶中间体——单乙二醇缩4，4＇-双环己二酮的合成进行了研究。结果表明，4，4＇-双环己二酮与乙二醇在130℃下搅拌反应1h，产物单乙二醇缩4，4：双环己二酮的收率为68．7％，产物选择性为83．4％。离子液体法具有收率高，选择性好，产品分离容易，对环境友好等优点，具有工业应用价值。

英文摘要：

Bicyclohexane-4, 4＇-dione mono-ethyleneketal, a key thin film transistor （TFT） liquid crystal intermediate, was synthesized with BMImH2PO4 as a solvent and catalyst. The results show that the reaction of bicyclohexane-4,4＇-dione and glycol in BMImH2PO4 proceeds smoothly at 130 ~C for 1 h to afford bicyclohexane- 4,4＇-dione mono-ethyleneketal with the yield of 68.7% and selectivity of 83.4%. The ionic liquid method is with the advantages of high yield and selectivity, ease of product separation, environmental benign and recycle of ionic liquid, and is significant for its promising industrial application.