以N为中心的阴离子离子液体的合成、表征及应用

首次通过不同阴离子的钾盐和不同的季铵化的咪唑，吡咯溴盐/氯盐进行离子交换，合成了一系列含氰基官能团的阴离子功能化离子液体。通过红外、核磁共振、质谱对离子液体的结构进行表征；通过TGA对离子液体的热稳定性进行测定，结果发现功能化离子液体具有良好的热稳定性，其分解温度在224-289℃范围内。将功能化离子液体[EMIm][N(CN)COC2H5]作为配体应用于无膦配体的Suzuki偶联反应，发现在反应中加入功能化离子液体[EMIm][N(CN)COC2H5]可以使反应收率提高10-20%。

Synthesis,Characterization and Properties of Amide Anions Based Ionic Liquids Containing Nitrile Group

A series of novel amide anion based ionic liquids containing nitrile groups have been synthesized using the method of ion‐exchange between potassium amide and various quaternary halide salts such as trimethylamine, triethylamine, tributylamine, N‐methylpyrrolidine, and N‐methylimidazole. All of the functionalised ionic liquids were characterized by IR, ¹H and ¹³C NMR, and MS. The synthesized ionic liquids exhibited advantageously high thermal stability. The decomposition temperature of ionic liquids measured via TGA ranged from 224 to 289°C. The functionalised ionic liquid, 1‐ethyl‐3‐methylimidazolium propionyl cyanamide ([EMIm][N(CN)COC₂H₅]), was used as a ligand in the palladium catalyzed Suzuki coupling reaction. The yields of the coupling reaction increased by 10%–20% by the addition of [EMIm][N(CN)COC₂H₅].