Journal ArticleDOI
Catalytic activity of polymer anchored N,N′-bis (o-hydroxy acetophenone) ethylene diamine Schiff base complexes of Fe(III), Cu(II) and Zn(II) ions in oxidation of phenol
K.C. Gupta,Alekha Kumar Sutar +1 more
TLDR
In this article, N,N′-bis (4amono-o-hydroxy acetophenone) ethylene diamine Schiff base (AHPED) was synthesized by nitrosation and reduction of HPED Schiff and then reacted with cross-linked chloromethylated polystyrene beads in methanol.Abstract:
N,N′-bis (o-hydroxy acetophenone) ethylene diamine Schiff base (HPED) was synthesized to prepare unsupported and polymer supported complexes of iron(III), copper(II) and zinc(II) ions. To immobilize HPED Schiff base on polymer support, first of all N,N′-bis (4-amono-o-hydroxy acetophenone) ethylene diamine Schiff base (AHPED) was synthesized by nitrosation and reduction of HPED Schiff and then reacted with cross-linked chloromethylated polystyrene beads in methanol. The anchoring of HPED Schiff base on polymer beads was 86.21 wt% (2.313 mmol g−1). HPED Schiff base anchored polymer beads were loaded with iron(III), copper(II) and zinc(II) ions, which showed 85.0% (1.96 mmol), 83.0% (1.91 mmol) and 78.0% (1.81 mmol) efficiency for complexation for these metal ions. The unsupported and supported metal complexes were characterized by UV, IR and magnetic measurements, which showed octahedral geometry for iron(III), square planar for copper(II) and tetrahedral for zinc(II) ions complexes. Complexation of metal ions has increased thermal stability of HPED Schiff base. The effect of polymer support on catalytic activity of metal complexes was determined by studying the oxidation of phenol under different experimental conditions in presence of hydrogen peroxide as oxidant. The iron(III) ions complexes showed high activity in comparison to copper(II) and zinc(II) ions complexes. The turn over number (TON) for phenol was high with polymer supported metal complexes than unsupported complexes.read more
Citations
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Journal ArticleDOI
Polymer-supported Schiff base complexes in oxidation reactions
TL;DR: In this paper, the catalytic activity of different types of Schiff base was analyzed and presented in a review, showing that polymer-supported Schiff base complexes of metal ions show high catalytic performance in comparison to their unsupported analogues.
Journal ArticleDOI
Design, characterization, teratogenicity testing, antibacterial, antifungal and DNA interaction of few high spin Fe(II) Schiff base amino acid complexes
Laila H. Abdel-Rahman,Rafat M. El-Khatib,Lobna A. E. Nassr,Ahmed M. Abu-Dief,Fakhr El-Din Lashin +4 more
TL;DR: The prepared complexes bind to DNA via classical intercalative mode and showed a different DNA activity with the sequence: nhi>nari>nali>nasi>nphali.
Journal ArticleDOI
Synthetic methodologies and properties of organometallic and coordination macromolecules
TL;DR: A comprehensive review of the synthesis and properties of photo-and electro-active macromolecules can be found in this article, where the authors highlight the recent advances in the field of organometallic and coordination macromoles.
Journal ArticleDOI
Synthesis, physicochemical studies, embryos toxicity and DNA interaction of some new Iron(II) Schiff base amino acid complexes
TL;DR: In this paper, Fe(II) Schiff base amino acid complexes derived from the condensation of o-hydroxynaphthaldehyde with l -alanine, l -phenylalanine and l -aspartic acid were synthesized and characterized by elemental analysis, IR, electronic spectra, and conductance measurements.
Journal ArticleDOI
A study on the oxidation of phenol by heterogeneous iron silica catalyst
TL;DR: In this article, a series of iron silica catalysts with (5 − 20)wt.% Fe 3+ were prepared by means of a simple solvent extraction and sol-gel technique, and they were probed for the oxidation of phenol employing hydrogen peroxide.
References
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Book
Vogel's Textbook of Practical Organic Chemistry
Arthur I. Vogel,Brian S. Furniss +1 more
TL;DR: In this paper, the authors present a method for the synthesis of organic compounds using Spectroscopic methods and Spectral Spectral Methods (SSTM) with a focus on alicyclic and aliphatic compounds.
Journal ArticleDOI
Recent Advances in Asymmetric Catalytic Metal Carbene Transformations.
Michael P. Doyle,David C. Forbes +1 more
Journal ArticleDOI
Utilisation of homogeneous and supported chiral metal(salen) complexes in asymmetric catalysis
TL;DR: The first salen ligand and Cu complex were discovered in 1889, and gradually the potential catalytic activity of subsequent salen species has been recognised, particularly in the case of achiral salen complexes in oxidation reactions.
Journal ArticleDOI
Polymer-Supported (Salen)Mn Catalysts for Asymmetric Epoxidation: A Comparison between Soluble and Insoluble Matrices
Thomas S. Reger and,Kim D. Janda +1 more
TL;DR: In this paper, the synthesis of both soluble and insoluble polymer-supported chiral (salen)Mn complexes and their use in asymmetric epoxidation reactions were described.
Journal ArticleDOI
Preparation and catalytic oxidizing potential of polymer supported chelating amine and Schiff base complexes
TL;DR: In this paper, synthetic procedures for attaching multidentate amines to organic polymers are described; these materials form the basis for the preparation of a wide variety of macrocyclic and chelating ligands that can be covalently attached to polymers.
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