Alkylation of Ammonium Salts Catalyzed by Imidazolium??Based Ionic Liquid Catalysts

ZQ Zheng, J Wang, TH Wu…

文献索引：Zheng, Zhuo Qun; Wang, Jie; Wu, Ting Hua; Zhou, Xiao Ping Advanced Synthesis and Catalysis, 2007 , vol. 349, # 7 p. 1095 - 1101

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被引用次数: 19

摘要

Abstract Quaternary ammonium salts were synthesized from ammonium salts and dialkyl carbonates over imidazolium ionic liquid catalysts. The reaction gave almost stoichiometric amounts of the quaternary ammonium salts for halides and nitrates. It was found that the electron-donating property of the alkyl moieties of ammonium cations, the electrophilic nature of the alkyl group of the carbonate, the acidity of the acid that the anion of the ...