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Some environmentally friendly catalysts such as HY and H-β zeolites,various cation-exchanged β zeolites,and some other solids have been used in the acylation reaction of ethylidenecyclohexane with acetic anhydride at room temperature to synthesize 3-(1-cyclohexenyl)-2-butanone instead of conventional catalysts.The effect of the amount of HY zeolite used on the acylation reaction was investigated.The yield of the acylated product was 72% in the case of n(ethylidenecyclohexane)∶n(acetic anhydride)∶m(HY zeolite)=1 mmol∶10 mmol∶0.100 g,reaction temperature:25 ℃,and reaction time:2 h.The regenerated HY zeolite showed almost the same catalytic activity as the fresh zeolite.

参考文献

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[3] ZHAO Zhen-Hua(赵振华),ZHANG Mian-Ji(张绵吉)).Chin J Catalysis(催化学报)[J],1991,12:328
[4] ZHAO Zhenhua.Doctoral Dissertation.Swansea:University of Wales,U.K.,1997:38
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