Functionalized ionic liquids based on imidazolium cation: Synthesis, characterization and catalytic activity for N-alkylation reaction

The novel functionalized ionic liquids based on imidazolium cation are synthesized and characterized by studying its 1H, 13C, and 31P NMR and elemental analysis. These ionic liquids have been reported as a highly efficient catalyst for N-alkylation reaction of aniline with butyl chloride. The reaction was efficiently performed in ionic liquid as an environmentally benign solvent with good yields without transition metal.