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Michael Addition of Anthrone to Nitroolefines in Water and Oxidation of Alkenes Using a Supported Iron Oxide Nanocatalyst
,
M.Sc. Thesis
Sharif University of Technology
;
Saeedi, Mohammad Reza
(Supervisor)
;
Ziyaei Halimehjani, Azim
(Supervisor)
;
Rajabi, Fatemeh
(Co-Advisor)
Abstract
This projct includes the following sections: In the first section, Michael addition reaction of anthrone to nitroolefins is described in water without using any catalyst to prepare 9-(2-nitro-1-arylethyl)anthracene-10(9H)-ones. This method is green, efficient and gives high yields of products. The solvent effect is also investigated. In the second section, Considerable efforts have been directed in recent years towards the transition metal complex catalyzed oxidation of organic compounds such as olefins, sulfides, benzylics alcohols and phenolics. And due to the various advantages of supported heterogeneous catalysts and in our aim to develop a simple, more efficient and eco-friendly...
One-pot Synthesis of α-Aminonitriles by Reusable Co(II) Supported Nanocatalyst under Solvent-Free Conditions
,
M.Sc. Thesis
Sharif University of Technology
;
Saidi, Mohammad Reza
(Supervisor)
;
Rajabi, Fatemeh
(Supervisor)
Abstract
Considering the widespread applications of α-aminonitriles, their synthesis is of great importance. The Strecker reaction represents a direct and appealing approach for the preparation of α-aminonitriles. With the aim of developing a mild and convenient approach towards the construction of α-aminonitriles, numerous methods have been reported for this important process over the past few decades. These have been mostly related to the optimization of reaction conditions and the use of more challenging substrates including ketimines and ketiminium salts and design of novel and effective catalytic systems. Due to the various advantages of supported heterogeneous catalysts and in our aim to...
Photocatalytic degradation of furfural by titania nanoparticles in a floating-bed photoreactor
, Article Chemical Engineering Journal ; Volume 146, Issue 1 , 2009 , Pages 79-85 ; 13858947 (ISSN) ; Vossoughi, M ; Borghei, M ; Sharif University of Technology
2009
Abstract
In this research, an attempt was made to investigate the potential of nanophotocatalysts for treatment of hazardous wastewater streams. Titanium dioxide nanoparticles (as photocatalyst) were immobilized on a porous and low-density support called "perlite" using a very simple and inexpensive method. TiO2-coated perlite granules were used in a "Floating-bed photoreactor" to study the photocatalytic purification process of a typical wastewater polluted by furfural. The effects of initial concentration, catalyst mass/solution volume ratio, oxidant molar flow, residence time, and light intensity on process removal efficiency, and kinetics of the reactions were studied. SEM analyses showed a...