نتایج جستجو برای: microwave assisted synthesis

تعداد نتایج: 576400  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
nazila esmaeili hossein kazemian dariush bastani

this mini review article, intends to provide the essential information about microemulsion technique as a reliable approach toward the synthesis of zeolitic nano crystallites. the strategy discussed here provides a unique, effective, and potentially general methodology to the preparation of uniform and high purity nano crystallites of template-free zeolitic materials including lta, faujasite ty...

H. Orojlou M. R. Parvizi M. Sahooli R. Saboori S. Sabbaghi,

In the past decades, many methods have been developed to synthesize zero- dimensional  nanoparticles, quasi–one–dimensional (1D) CuO nanostructures, such as metal organic deposition technique,  microwave irradiation, sol-gel-like dip  technique, reverse micelle-assisted route, chemical method, and simple template free solution route. Among those synthesis methods, hydrothermal and chemical reac...

2015
Emanuele Petruzzella Cristian V. Chirosca Cameron S. Heidenga James D. Hoeschele

A microwave-assisted synthesis of cisplatin, cis-[Pt(NH3)2Cl2], has been developed and optimized on both a 0.2 and 0.05 millimolar scale. The optimized synthetic procedure was modeled after the Lebedinskii-Golovnya method and is suitable for incorporating the radionuclide, Pt, into cisplatin for biological studies. Highest yields (47 %) and purity are obtained using a K2PtCl4:NH4OAc:KCl molar r...

2003
Giulio G. Muccioli Jacques H. Poupaert Johan Wouters Bernadette Norberg Wolfgang Poppitz Gerhard K. E. Scriba Didier M. Lambert

The present paper describes studies on the synthesis of the antiepileptic drug phenytoin, and of structurally related derivatives. First, the influence of the solvent has been investigated in the microwave-assisted synthesis of the drug, resulting in a yield improvement and a cleaner reaction. Second, a two-step reaction is described to synthesize selectively and in high yields phenytoin. The f...

2017
Elena Cini Elena Petricci Maurizio Taddei Giancarlo Cravotto

Microwave-assisted organic synthesis (MAOS) provides a novel and efficient means of achieving heat organic reactions. Nevertheless, the potential arcing phenomena via microwave (MW) interaction with solid metal catalysts has limited its use by organic chemists. As arcing phenomena are now better understood, new applications of Pd/C-catalyzed reactions under MW dielectric heating are now possibl...

Journal: :Molecules 2016
Mohsine Driowya Aziza Saber Hamid Marzag Luc Demange Khalid Bougrin Rachid Benhida

This review describes the recent advances in the microwave-assisted synthesis of 7-membered and larger heterocyclic compounds. Several types of reaction for the cyclization step are discussed: Ring Closing Metathesis (RCM), Heck and Sonogashira reactions, Suzuki-Miyaura cross-coupling, dipolar cycloadditions, multi-component reactions (Ugi, Passerini), etc. Green syntheses and solvent-free proc...

Journal: :Dalton transactions 2015
Emanuele Petruzzella Cristian V Chirosca Cameron S Heidenga James D Hoeschele

A microwave-assisted synthesis of cisplatin, cis-[Pt(NH3)2Cl2], has been developed and optimized on both a 0.2 and 0.05 millimolar scale. The optimized synthetic procedure was modeled after the Lebedinskii-Golovnya method and is suitable for incorporating the radionuclide, (195m)Pt, into cisplatin for biological studies. Highest yields (47%) and purity are obtained using a K2PtCl4 : NH4OAc : KC...

Dariush Bastani Hossein Kazemian, Nazila Esmaeili

This mini review article, intends to provide the essential information about microemulsion technique as a reliable approach toward the synthesis of zeolitic nano crystallites. The strategy discussed here provides a unique, effective, and potentially general methodology to the preparation of uniform and high purity nano crystallites of template-free zeolitic materials including LTA, faujasite ty...

Journal: :Molecules 2017
Souad Bouasla Juan Amaro-Gahete Dolores Esquivel M Isabel López César Jiménez-Sanchidrián Mabrouk Teguiche Francisco J Romero-Salguero

A suitable methodology of synthesis of coumarin derivatives by Pechmann reaction over heterogeneous solid acid catalysts in a free solvent media under microwave irradiation is described. Resorcinol, phenol and ethyl acetoacetate were selected as model reactants in the Pechmann condensation. The catalytic activity of several materials-Amberlyst-15, zeolite β and sulfonic acid functionalized hybr...

Journal: :nanochemistry research 0
hamid reza rajabi chemistry department, yasouj university, yasouj, iran hoda deris chemistry department, yasouj university, yasouj, iran hame sadat faraji chemistry department, yasouj university, yasouj, iran

in the present study, a simple, efficient and fast synthetic strategy was reported for the green biosynthesis of silver nanostructures (i.e. nanoroads and nanoparticles) by the extract of suaeda acuminata plant, without any catalyst, template or surfactant. aqueous extracts were obtained by maceration and microwave assisted extraction (mae) methods. in mae procedure, the effect of microwave pow...

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