Fe۳O۴@SiO۲/DABCO(OH) Core-Shell Hybrid Nanocomposite: Efficient Nanomagnetic and Basic Reusable Catalyst in the One-pot Synthesis of Trithiocarbonate Derivatives
محل انتشار: مجله افق های شیمی مواد، دوره: 2، شماره: 2
سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 88
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شناسه ملی سند علمی:
JR_MCH-2-2_001
تاریخ نمایه سازی: 29 تیر 1402
چکیده مقاله:
DABCO-based ionic liquid supported on magnetic core-shell nanoparticles, Fe۳O۴@SiO۲/DABCO(OH), as a novel magnetic nanocomposite was prepared and characterized by Fourier Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray powder Diffraction (XRD), Transmission Electron Microscopy (TEM) and Vibrating Sample Magnetometer (VSM) analysis. The hybrid nanocomposite was successfully used as an efficient heterogeneous basic catalyst for the facile synthesis of symmetrical dialkyl trithiocarbonates and cyclic trithiocarbonates from alkyl halides and epoxides respectively under mild reaction conditions. The results showed that aryl halides bearing electron-donating groups as well as electron-withdrawing groups converted to the corresponding symmetrical dialkyl trithiocarbonates in good to high isolated yields (۸۰-۹۵%). In addition, styrene oxide and phenyl glycidyl ether epoxide were converted to the corresponding cyclic trithiocarbonates in good yields in CS۲ and the presence of nanocomposite without the formation of any by-product. Recycling experiments confirmed that Fe۳O۴@SiO۲/DABCO(OH) was recyclable and could be used for several consecutive reaction runs.
کلیدواژه ها:
نویسندگان
Marzieh Asadi Nasr
Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Maryam Deinavizadeh
Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Ali Reza Kiasat
Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran