Sonochemical rate enhanced by a new nanomagnetic embedded core/shell nanoparticles and catalytic performance in the multicomponent synthesis of pyridoimidazoisoquinolines |
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| Institution: | 1. Department of Image Science and Engineering, Pukyong National University, Busan 608-737, Republic of Korea;2. Department of Chemistry, Pukyong National University, Busan 608-737, Republic of Korea;1. Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran;2. Department of Chemistry, Islamic Azad University, Izeh, Iran;3. Department of Chemistry, Gobardanga Hindu College, India;4. Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran;1. Materials Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India;2. Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India;3. Academy of Scientific and Innovative Research, CSIR-NEIST Campus, India;4. Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, Russia;5. Novosibirsk National Research State University, Novosibirsk, Russia;1. Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran;2. Department of Chemistry, Faculty of Science, Yazd University, Yazd 89195.741, Iran |
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| Abstract: | A sonochemical approach for the one-pot three-component synthesis of pyridoimidazoisoquinolines via by using phthalaldehyde, trimethylsilylcyanide and aminopyridines the presence of a catalytic amount of a new nanomagnetic catalyst Fe3O4@SiO2-CO-C6H4-NH2 is described. The characterization of the nanocatalyst and the product was done by various methods, such as FT-IR, SEM, EDX, TGA/DTA, NMR, MS and CHN analyses. This is the first design, preparation, characterization and application of the present core/shell nanomaterial and also the first ultrasound irradiated synthesis of the biologically and pharmaceutically important fused polycyclic compounds in ethanol as a green solvent. This novel protocol offers several advantages such as high yields, short reaction times, environmentally-friendly reaction media, easily isolation of the products, simple preparation and recoverability of the nanocatalyst by an external magnet and reusing several times without significant decrease in catalytic activity. |
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| Keywords: | Sonochemistry Ultrasonic irradiation Core/shell magnetic nanoparticles Nanostructure catalyst Pyridoimidazoisoquinolines Green chemistry |
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