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Citation: Ling HE, Guo Hong TAO, Wei Shan LIU, Wei XIONG, Tao WANG, Yuan KOU. One-pot Synthesis of Lewis Acidic Ionic Liquids for Friedel-Crafts Alkylation[J]. Chinese Chemical Letters, ;2006, 17(3): 321-324. shu

One-pot Synthesis of Lewis Acidic Ionic Liquids for Friedel-Crafts Alkylation

Green Chemistry Centre, College of Chemistry and Molecular Engineering, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Peking University, Beijing 100871

Received Date: 22 August 2005

Fund Project: We are grateful to the grant from the National Natural Science Foundation of China (Key Program 20533010).

Novel Lewis acidic ionic liquids containing thionyl cations and chloroaluminate anions were obtained by one-pot synthesis for the first time. Their acidities were determined by acetonitrile probe on IR spectrography. The ionic liquids were used as catalyst for Friedel-Crafts alkylation of benzene and 1-dodecene. The turnovers of 1-dodecene were higher than 99%. Monoalkylbenzene selectivity was 98%, while the 2-substituent product selectivity was 45%.
- Ionic liquids,
- green chemistry,
- one-pot synthesis,
- Lewis acidity,
- alkylation
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