title: Magnetic cellulose/Ag as a novel eco-friendly nanobiocomposite to catalyze synthesis of chromene-linked nicotinonitriles.
abstract: In this work, design, preparation and performance of magnetic cellulose/Ag nanobiocomposite as a recyclable and highly efficient heterogeneous nanocatalyst is described. Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD) pattern, vibrating sample magnetometer (VSM) curve, field-emission scanning electron microscopy (FE-SEM) image, energy dispersive X-ray (EDX) analysis and thermogravimetric analysis/differential thermal analysis (TGA/DTA) were used for the characterization. Then, its activity was investigated in the synthesis of 2-amino-6-(2-oxo-2H-chromen-3-yl)-4-phenylnicotinonitrile derivatives. The main advantages of the reaction are high yields and short reaction times. The remarkable magnetic property of the nanobiocomposite catalyst provides easy separation from the reaction mixture by an external magnet without considerable loss of its catalytic activity.
authors.affiliation: Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran. Electronic address: maleki@iust.ac.ir.
authors.forename: Ali
authors.initials: A
authors.lastname: Maleki
authors.affiliation: Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran.
authors.forename: Hamed
authors.initials: H
authors.lastname: Movahed
authors.affiliation: Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran.
authors.forename: Parisa
authors.initials: P
authors.lastname: Ravaghi
mesh_terms: D001578:Benzopyrans / Q000138:chemical synthesis*; D002384:Catalysis; D002482:Cellulose / Q000737:chemistry*; D008280:Magnetics; D053761:Nanocomposites / Q000737:chemistry*; D009538:Nicotine / Q000737:chemistry*; D009570:Nitriles / Q000138:chemical synthesis*; D012834:Silver / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D001578:Benzopyrans; D009570:Nitriles; D012834:Silver; D009538:Nicotine; D002482:Cellulose
keywords: Cellulose/Ag nanobiocomposite; Chromene-linked nicotinonitrile; Cyanopyridine; Magnetic nanocatalyst; Recyclability