Betti base‐modified magnetic nanoparticles as a novel basic nanocatalyst in Knoevenagel condensation and its related palladium nanocatalyst in Suzuki coupling reactions |
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| Authors: | Payam Heidari Ramin Cheraghali Hojat Veisi |
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| Affiliation: | 1. Department of Chemistry, College of Science, Saveh Branch,Islamic Azad University, Saveh, Iran;2. Department of Chemistry, Payame Noor University, Tehran, Iran |
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| Abstract: | Betti base‐modified Fe3O4 nanoparticles have been successfully designed and synthesized for the first time through the condensation of Fe3O4 magnetic nanoparticles coated by (3‐aminopropyl)triethoxysilane with β‐naphthol and benzaldehyde. Their application as a novel magnetic nanocatalyst in the Knoevenagel condensation and also application to immobilization of palladium nanoparticles for Suzuki coupling reactions have been investigated which opens a new field for application of Betti base derivatives in organic transformations. The synthesized inorganic–organic hybrid nanocatalyst has been fully been characterized using Fourier transform infrared, X‐ray diffraction, vibrating sample magnetometry, transmission and scanning electron microscopies, energy‐dispersive X‐ray, wavelength‐dispersive X‐ray and X‐ray photoelectron spectroscopies and inductively coupled plasma techniques. The catalyst was easily separated with the assistance of an external magnet from the reaction mixture and reused for several consecutive runs with no significant loss of its catalytic efficiency. Copyright © 2016 John Wiley & Sons, Ltd. |
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| Keywords: | betti base organocatalyst magnetic palladium nanoparticles Knoevenagel Suzuki |
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