Alkylation of aromatic compounds with multi-component Lewis acid catalysts of ZnCl2 and ionic liquids with different organic cations
Alkylation of aromatic compounds with multi-component Lewis acid catalysts of ZnCl2 and ionic liquids with different organic cations
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DOI：
10.1007/s11144-009-5422-y
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发表时间：
2009-03
影响因子：
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通讯作者：
R. Srivastava;S. Fujita;S. Okamura;M. Arai
中科院分区：
文献类型：
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作者：
R. Srivastava;S. Fujita;S. Okamura;M. Arai
研究了ZnCl 2基离子液体刘易斯酸催化芳香族化合物与氯化苄、苯甲醇和异丙基氯等烷基化试剂的烷基化反应。制备了ZnCl 2与溴化1-丁基-3-甲基咪唑、溴化1-丁基吡啶、氯化胆碱和溴化四丁基铵等离子液体的多组分刘易斯酸催化剂，并将其负载于硅胶上，比较了其与不同烷基化剂的烷基化反应.在离子液体基催化剂中，1-丁基-3-甲基咪唑鎓溴化物-ZnCl 2和1-丁基吡啶鎓溴化物-ZnCl 2是高活性的。
Alkylation of aromatic compounds with various alkylating agents such as benzyl chloride, benzyl alcohol and isopropyl chloride were investigated using ZnCl2based ionic liquid (ILs) Lewis acid catalysts. Multi-component Lewis acid catalysts of ZnCl2and ionic liquids such as 1-butyl-3-methylimidazolium bromide, 1-butylpyridinium bromide, cholin chloride and tetrabutylammonium bromide were prepared, supported on silica gel, and compared for alkylation reactions with various alkylating agents. Among the IL-based catalysts, 1-butyl-3-methyl imidazolium-bromide-ZnCl2and 1-butylpyridinium bromide-ZnCl2are highly active.