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Acta Phys. -Chim. Sin.  2004, Vol. 20 Issue (09): 1083-1088    DOI: 10.3866/PKU.WHXB20040905
Article     
The Reuse of Acidic Ionic Liquids as Catalysts in Diphenyl Oxide Alkylation with Dodecene
Piao Ling-Yu;Han Yang;Kou Yuan
Institute of Physical Chemistry, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871
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Abstract  The diphenyl oxide alkylation with dodecene catalyzed by acidic ionic liquids has been studied. The reuse potential of acidic ionic liquids has been investigated. The reasons for the deactivation of the acidic ionic liquids are the decomposition and leaching of the actual catalytic species Al2Cl72- from the interaction between acidic ionic liquids and diphenyl oxide. The interaction between acidic ionic liquids and diphenyl oxide couldn’t be avoided by changing the cations of ionic liquids. The reuse problem of acidic ionic liquids can be solved when certain amount of AlCl3 is added into the used ionic liquids. The yield of target product is still around 90% after 8 cycles of the ionic liquids.

Key wordsLewis acidity      Ionic liquids      Diphenyl oxide      Dodecene      Alkylation      Reuse     
Received: 02 March 2004      Published: 15 September 2004
Corresponding Authors: Kou Yuan     E-mail: yuankou@pku.edu.cn
Cite this article:

Piao Ling-Yu;Han Yang;Kou Yuan. The Reuse of Acidic Ionic Liquids as Catalysts in Diphenyl Oxide Alkylation with Dodecene. Acta Phys. -Chim. Sin., 2004, 20(09): 1083-1088.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB20040905     OR     http://www.whxb.pku.edu.cn/Y2004/V20/I09/1083

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