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Nitration of Toluene with Nitric Acid in the Presence of Acidic Ionic Liquids(Ⅱ)
Author(s): 
Pages: 398-400
Year: Issue:  4
Journal: CHINESE JOURNAL OF ENERGETIC MATERIALS

Keyword:  应用化学酸性离子液体催化硝化甲苯硝酸(67%);
Abstract: 为了实现一种环境友好的绿色硝化途径,以1-甲基3-丁磺酸咪唑型离子液体[SO3H(CH2)4mim]X(X-=pTSO-, CF3COO-, BF4-)为溶剂和催化剂,进行了甲苯的硝酸(67%)硝化反应研究.结果表明,[SO3H(CH2)4mim]CF3COO表现出了最好的催化效果,当甲苯与硝酸的摩尔比为1:1,离子液体的用量为底物的5%(摩尔分数),80 ℃反应22 h,可使甲苯的转化率达到65.1%,一硝基甲苯的收率为40.7%,邻/对为1.24.
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