全氟烷基磺酰亚胺盐催化芳香化合物硝化反应的研究有机化学.pdfVIP

2005 年第 25 卷 有 机 化 学 Vol. 25, 2005 第 4 期, 394～398 Chinese Journal of Organic Chemistry No. 4, 394～398 ·研究论文· 全氟烷基磺酰亚胺盐催化芳香化合物硝化反应的研究 袁余斌 聂 进* 王烁今 张正波 (华中科技大学化学系 武汉 430074) 摘要 利用系列全氟烷基磺酰亚胺盐[M(NPf ) ]作为一种新型的 Lewis 酸催化剂，用于催化芳香化合物与等摩尔 65% 2 n (m ∶m)硝酸的硝化反应. 通过考察不同的催化剂、反应时间、反应温度和反应介质效应等因素对甲苯硝化的影响，以 及比较 1 mol% Yb[N(C F SO ) ] 催化不同结构的取代芳烃硝化反应的效果，表明全氟烷基磺酰亚胺盐不仅具有环境友 4 9 2 2 3 好和原子经济的特点，而且是一类比常规 Lewis 酸更有效的、芳香化合物硝化反应的催化剂. 关键词 全氟烷基磺酰亚胺盐; Lewis ; 催化; 硝化 Aromatic Nitration Catalyzed by Metal Bis[(perfluoroalkyl)- sulfonyl]imides YUAN, Yu-Bin NIE, Jin* WANG, Shuo-Jin ZHANG, Zheng-Bo (Department of Chemistry , Huazhong University of Science and Technology, Wuhan 430074) Abstract In this paper, the metal bis[(perfluoroalkyl)sulfonyl]imides [M(NPf ) ] were employed for nitra- 2 n tion of aromatic compounds with 1 equiv. of 65% (m ∶m) nitric acid as novel Lewis acid catalysts. The ef- fects of Lewis acid catalysts, reaction time, temperature and medium on nitration of toluene, as well as the catalytic performance of nitration of aromatic compounds in the presence of 1 mol% Yb[N(C F SO ) ] were 4 9 2 2 3 investigated. All experimental results showed that metal bis[(perfluoroalkyl)sulfonyl]imides were not only envir