CHINESE JOURNAL OF ENERGETIC MATERIALS
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离子液体催化甲苯绿色硝化反应研究
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方东(1968-),男,高级工程师,博士研究生,主要研究方向为含能材料、精细有机合成、绿色化学。e-mail: fangdong106@163.com

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国防科工委兵器科技预先研究项目(ZY020103-1)


Green Nitration of Toluene in Ionic Liquids
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    合成了1-甲基-3-丙磺酸基咪唑硫酸氢盐[MIMPS][HSO4]功能化室温离子液体,以[MIMPS][HSO4]作催化剂,质量分数为68%的硝酸为硝化试剂,能够实现甲苯绿色硝化反应。原料n(硝酸)∶n(甲苯)∶n(催化剂)为150∶50∶1,于60 ℃下反应10 h,一硝化产率为70.4%,选择性100%, p/o值为0.7。反应结束产物与催化体系分层,通过简单的倾析可实现产物的分离,催化剂能够循环使用。

    Abstract:

    Novel BrØnsted ionic liquid 1-metyl-3-propanesulfonic acid immidazolium hydrogen sulfate[MIMPS][HSO4] was prepared as catalyst for the green chemical processes of nitration reaction. Nitration reaction was carried out for 10 h at 60 ℃ with the catalyst to reactant molar ratio of 1∶50, and the yield of mononitration reaction was 70.4%, and selectivity of mononitration reaction was 100% with a para to ortho ratio of 0.7. Biphasic system of product and catalyst was obtained and the product could be separated simply by decantation. In addition, ionic liquid could be recovered and reused showing the possibility of a clean chemical process.

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方东,施群荣,巩凯,等.离子液体催化甲苯绿色硝化反应研究[J].含能材料, 2007, 15(2):122-124.
FNAG Dong, SHI Qun-rong, GONG Kai, et al. Green Nitration of Toluene in Ionic Liquids[J]. Chinese Journal of Energetic Materials, 2007, 15(2):122-124.

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  • 收稿日期: 2006-06-16
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  • 在线发布日期: 2011-10-31
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