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Citation: SU Lianzheng, JIN Cheng, GU Lijun. Improved Synthesis and Characterization of 1-Benzyl-3-alkylbenzotriazolium Ionic Liquids[J]. Chinese Journal of Applied Chemistry, ;2013, 30(8): 867-871. doi: 10.3724/SP.J.1095.2013.20427 shu

Improved Synthesis and Characterization of 1-Benzyl-3-alkylbenzotriazolium Ionic Liquids

SU Lianzheng ^a,c, ,
JIN Cheng ^b,c ,
GU Lijun ^c

a. Guangdong Trustever Pharmaceutical Co. Ltd., Guangzhou 510000, China;
b. Changzhou Tianma Group Co. Ltd., Changzhou 213127, China;
c. Key Laboratory of Chemistry in Ethnic Medicine Resource, State Ethnic Affairs Commission & Ministry of Education, Yunnan University of Nationalities, Kunming 650500, China

Received Date: 26 September 2012
Revised Date: 13 November 2012

An improved procedure was developed for the synthesis of 1-benzyl-3-alkylbenzotriazolium ionic liquids from commercially available starting materials. The structures of target compounds were characterized by FT-IR,¹H NMR and ¹³C NMR. The yield reaches 82.7%~86.1% when the molar ratio of substituted alkyl benzotriazole to cuprous iodide and benzyl bromide is 10:2.5:11,and the reaction time is 5~6 h. Moreover,their solubility,the relationship between molecular structure and melting point of the ionic liquids were investigated.
- benzotriazolium ionic liquids,
- catalysis,
- synthesis,
- characterization
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