title: Biosynthesis, characterization and catalytic activity of Cu/RGO/Fe3O4for direct cyanation of aldehydes with K4[Fe(CN)6].
abstract: This work reports the green synthesis of the Cu/reduced graphene oxide/Fe3O4(Cu/RGO/Fe3O4) nanocomposite as a new catalytic system for cyanation of aldehydes to nitriles. This nanocomposite catalytic system was synthesized by aqueous extract of leaves of Euphorbia bungei Boiss as a reducing and stabilizing agent. Various substituted aryl nitrile were prepared under optimized conditions and providing moderate to excellent yields. In this process the catalyst exhibited a strong magnet response and could be easily separated by an external magnet and reused with no loss of catalytic activity.
authors.affiliation: Department of Chemistry, Faculty of Science, University of Qom, PO Box 37185-359, Qom, Iran; Center of Environmental Researches, University of Qom, Qom, Iran. Electronic address: mahmoudnasr81@gmail.com.
authors.forename: Mahmoud
authors.initials: M
authors.lastname: Nasrollahzadeh
authors.affiliation: Department of Chemistry, Faculty of Science, University of Qom, PO Box 37185-359, Qom, Iran.
authors.forename: Monireh
authors.initials: M
authors.lastname: Atarod
authors.affiliation: Department of Petroleum Geoscience, Faculty of Science, Soran University, PO Box 624, Soran, Kurdistan Regional Government, Iraq.
authors.forename: S Mohammad
authors.initials: SM
authors.lastname: Sajadi
mesh_terms: D000447:Aldehydes / Q000737:chemistry*; D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D017743:Equipment Reuse; D028481:Euphorbia / Q000737:chemistry; D005295:Ferrocyanides / Q000737:chemistry*; D052203:Ferrosoferric Oxide / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D055772:Green Chemistry Technology; D007700:Kinetics; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D009570:Nitriles / Q000737:chemistry*; D010084:Oxidation-Reduction; D010087:Oxides; D018515:Plant Leaves / Q000737:chemistry
chemical_list: D000447:Aldehydes; D005295:Ferrocyanides; D009570:Nitriles; D010087:Oxides; D006108:Graphite; D003300:Copper; C031835:potassium ferrocyanide; D052203:Ferrosoferric Oxide
keywords: Aldehyde; Cu/RGO/Fe(3)O(4) nanocomposite; Cyanation; Euphorbia bungei Boiss; K(4)[Fe(CN)(6)]