The Immobilization of Saccharides onto the Magnetic Nanoparticles of Fe3O4 and its Application as an Efficient Ligand for Support and Stabilization of Metallic Cations in Organic Reactions such as Synthesis of 1, 2, 3-Triazoles & 2-Substituted Benzoxazoles

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Kalhor, Sepideh | 2016

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 49001 (03)
University: Sharif University of Technology
Department: Chemistry
Advisor(s): Matlubi Moghaddam، Firouz
Abstract:
One of the most challengeable topic in the field of green chemistry is the synthesis of organic structure in water. In this project immobilized glucose on Fe3O4 was prepared as a nano heterogeneous dispersive catalyst in water. The catalyst was fully characterized by FT-IR, TGA, CHN, SEM, EDX and atomic absorption spectroscopy. The synthesized catalyst was used in the synthesis of different derivatives of 1,2,3-triazole via one-pot three component reaction of alkynes, alkyl halides, sodium azides; And to the best of our knowledge this novel catalyst coin sides to the principles of green chemistry. This nano catalyst can be recycled and reused for several runs without significant loss of its activity.Nowadays applying of new heterogeneous catalyst is of great importance to 2-substituted benzoxazole synthesis so in the second part of this project we tried to immobilized palladium on to the nano magnetic of (Fe3O4) which was functionalized with glucose in order to obtain 2-substituted benzoxazole derivatives with high yields in different ranges of organic solvents, and also This nano catalyst can be recycled and reused for five runs without significant loss of its activity
Keywords:
Green Chemistry ; Glucose ; Benzoxsazole ; Magnetic Nanodot ; Magnetic Iron Oxide Nonoparticle ; Triazole

No TOC