مشخصات پژوهش

عنوان	NANO-Fe3O4–SUPPORTED, HYDROGENSULFATE IONIC LIQUID–CATALYZED, ONE-POTSYNTHESIS OF POLYSUBSTITUTEDPYRIDINES
نوع پژوهش	مقاله چاپ شده
کلیدواژه‌ها	Magnetic nanoparticle;nano-Fe3O4; polysubstitutedpyridines;solvent-free condition; supportedionicliquids
چکیده	Anchoring 1-methyl-3-(triethoxysilylpropyl)imidazoliumchlorideontosilica- coated magneticFe3O4 particles affordedthecorrespondingsupportedionicliquid. Exchanging theCl anion bytreatingwithH2SO4 gave Brønstedionicliquid1-methyl- 3-(triethoxysilylpropyl) imidazoliumhydrogensulfate.Thesynthesizedcatalystwas characterized byvarioustechniquessuchasinfrared,x-raydiffraction,scanningelectron microscopy, thermogravimetricanalysis,andelementalanalyses.Theresultsindicated that thepreparedcatalysthadananostructure.Thecatalyticactivityofthesupported ionic liquidwasexaminedinthesynthesisofthepolysubstitutedpyridinesbyreactionof aromatic aldehydeswithacetophenonesandammoniumacetateinmoderatetogood yields undersolvent-freeconditions.Thecatalystcanbeeasilyrecoveredbyapplyingan external magneticfieldandreusedforatleastsevenrunswithoutdeteriorationin catalytic activity.
پژوهشگران	ندا قبادی (نفر سوم)، محمود تاجبخش (نفر دوم)، حشمت اله علی نژاد (نفر اول)