Abstract
A series of new imidazolium-type ionic liquids based on polyethylene glycol have been prepared. The new recyclable temperature-dependant phase-separation system comprised of [C12minPEG800]Br and methylcyclohexane was also developed and successfully applied to the dichloromethylation of some aromatic hydrocarbons to prepare dichloromethyl-substituted hydrocarbons in excellent yields. The ionic liquid could be excellent recycled without any apparent loss of catalytic activity and little loss of weight even after 8 times recycling.
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Hu, Y.L., Liu, X., Lu, T.T. et al. Efficient dichloromethylation of some aromatic hydrocarbons catalyzed by a new ionic liquid [C12minPEG800]Br under homogeneous catalysis in aqueous media. JICS 8, 131–141 (2011). https://doi.org/10.1007/BF03246210
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DOI: https://doi.org/10.1007/BF03246210