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Synthesis of Switchable Diazobenzene Nano-compounds, Fries type rearrangement of Carbonates and Ethers, Synthesis of Dicyano Stillbenes, Aromatics Bromination, Synthesis of Benzothiazoles and Thiophenes
, Ph.D. Dissertation Sharif University of Technology ; Matloubi Moghaddam, Firouz (Supervisor)
Abstract
In this project, Fries rearrangement of aryl benzyl ethers and ary benzyl carbonates, using catalyst and microwave irradiation in solvent-less system have been studied, and Benzylated phenols which have attracted a great deal of interest, due to their medicinal properties, were synthesized. The solvent-free Fries reactions have many advantages such as: reduced pollution, low costs, and simplicity in process and handling. We report the use of N-benzyl DABCO tribromide as an electrophilic bromine source and one of the OATBs for one-step oxidative coupling procedure of benzyl cyanides into Symmetrical α,ά -dicyanostilbenes. The reaction proceeds easily with higher yields and shorter reaction...
Use of Suitable Methods in Synthesis of Spiropyrrolididne Oxindole, Polysubstituted Thiophene, Thiopyrano Benzosultone and Pyrimidines by Cycloaddition Reactions
, Ph.D. Dissertation Sharif University of Technology ; Matloubi Moghaddam, Firouz (Supervisor)
Abstract
We have reported a new and efficient synthesis of a broad spectrum of heterotetracyclic thiopyranoindole via knovenagel hetero diels alder reaction.Fused pyrimidines have attracted considerable attention in synthetic organic chemistry because of their wide range of biological activities pharmaceutical and therapeutic properties, and antibacterial, antiviral, antitumor, and anti-inflammatory activities. We have reported a new efficient method for synthesis of pyrimidines fused to coumarine, uracile, cyclohexane and triamino pyrimidine structures. The major benefits of the current study are high yields, short reaction times, mild reaction conditions and available materials..We have also...