Abstract: Ionic liquid as green solvent was used in organic synthesis.the work in this thesis focused on synthesis of ionic liquid and ionic liquid as solvent and catalyst for preoaration of quinoline. N-methyl-N-butylimidazole chloride and N-methyl-N-butylimidazole tetrafluroborate was prepared from N-imidazole and butyl chloride. Quinolin was synthesized from imine and phenylacetylene in ionic liquid.