Preparation of HC1 modified pyridinium aluminum chloride ionic liquids and its catalytic performance in highly selective synthesis of 2,6-dimethylnaphthanlene

摘要：

Pyridinium aluminum chloride ionic liquid (PyHClAlCl3) was prepared and modified by HC1. The PyHClAlCl3 and the HC1-modified ionic liquid Py-HCl-AlCl3HCl were characterized by pyridine adsorbed FT-IR spectra (Py-IR), UV-visible spectra and 27A1 NMR measurements, respectively. In PyHCl-AlCl3 and PyHClAlCl3-HCl, the transalkylation of 2methylnaphthanlene (2-MN) with 1,2,4,5tetramethylbenzene (TeMB) for the highly selective synthesis of 2,6-dimethylnaphthalene (2,6-DMN) was performed. The influences of the reaction temperature and the HCl-modification on the transalkylation were investigated. Under the optimal reaction conditions, 14.8％ of the 2-MN conversion was reached with 100％ of 2,6-DMN selectivity by using the PyHCl-AlCl3-HCl as a catalyst.

关键词： pyridinium aluminum chloride ionic liquids (PyHCl-AlCl3 ILs) HCl-modification 2 6-dimethylnaphthalene transalkylation

作者: LIU Dan XIAO Linfei WU Wei WU Guang SU Dan

作者单位: Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, College of Heilongjiang Province School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China

会议类型: 国际会议

会议名称: The 3rd Asian Conference on Molten Salts and Ions Liquids 2011(第三届亚洲熔盐与离子液体会议)

会议地点: 哈尔滨

会议语种:英文

页码: 125-128

在线出版日期: 2011-01-06（万方平台首次上网日期，不代表论文的发表时间）