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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
, M.Sc. Thesis Sharif University of Technology ; Matlubi Moghaddam، Firouz (Supervisor)
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...
Synthesis of Novel Heterocycle Spiroindoline-2-thion, Spirodihydropyridine, Pyrrolopyrimidine and Furocoumarin Compounds and Using New Functionalized Magnetic and Mesoporous Nano Catalyst for Organic Transformations
, Ph.D. Dissertation Sharif University of Technology ; Matloubi Moghaddam, Firouz (Supervisor)
Abstract
In the first section of the present thesis, a number of novel heterocycles were prepared; they include spirodihydropyridine, spiroindoline-2-thion, and pyrrolopyrimidines. The major advantages of the current investigation encompass high yields, short reaction times, mild reaction conditions and feasibility and low-cost materials. In the second section of this thesis, heterogeneous catalysts based on magnetic nanoparticles coated with organosilanes were synthesized. These catalysts were synthesized by hydrolysis of tetraethyl organosilanes and other organosilicons such as 3-aminopropyl triethoxy silane. The synthesized scaffolds were used to stabilize precious metals as Pd and Cu. The...