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Synthesis of hexahydro-4-phenylquinoline-3-carbonitriles using Fe3O4@SiO2-SO3H nanoparticles as a superior and retrievable heterogeneous catalyst under ultrasonic irradiations
- Safaei-Ghomi, Javad, Aghagoli, Reza, Shahbazi-Alavi, Hossein
- Zeitschrift für Naturforschung 2018 v.73 no.5 pp. 269-274
- aldehydes, ammonium acetate, catalysts, condensation reactions, cyclohexanones, nanoparticles, renewable energy sources, ultrasonics
- An efficient synthesis of hexahydro-4-phenylquinoline-3-carbonitriles is described by the four-component condensation reaction of cyclohexanone, ammonium acetate, malononitrile, and aromatic aldehydes using Fe₃O₄@SiO₂-SO₃H nanoparticles as a superior and retrievable heterogeneous catalyst under ultrasonic irradiations. The reusability of the catalyst and little catalyst loading, excellent yields, short reaction times, using the sonochemical procedure as a green process and an alternative energy source are some benefits of this method.