Iranian Journal of Catalysis (IJC)ZnO nanoparticles as an Efficient and Reusable Catalyst for Synthesis of Quinoxaline under Solvent Free ConditionVolume 3 (2013)Issue 1, March 201320240203ZnO nanoparticles as an Efficient and Reusable Catalyst for Synthesis of Quinoxaline under Solvent Free ConditionENBaharehSadeghiDepartment of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, IranFereshtehKarimiDepartment of Chemistry, Yazd Branch, Islamic Azad University, P.O. Box 89195-155, Yazd, IranJournal Article202402031,2-Diketones have been reacted in one-pot method with 1,2-diamines at room temperature with ZnO nanoparticles as a catalyst. ZnO nanoparticles as an available and reusable catalyst is used for the synthesis of Quinoxalinein improved yields.Iranian Journal of Catalysis (IJC)Synthesis of 5-amino-1-aryl-4-cyanoimidazoles from formamidines under solvent-free conditionVolume 3 (2013)Issue 1, March 201320240203Synthesis of 5-amino-1-aryl-4-cyanoimidazoles from formamidines under solvent-free conditionENFarhadShiriniDepartment of Chemistry, College of Science, University of Guilan, Rasht, Iran0000-0002-7204-5000FarhadShiriniDepartment of Chemistry, College of Science, University of Guilan, Rasht, Iran0000-0002-7204-5000FatamahTavakoliDepartment of Chemistry, University of Guilan, P.O. Box 41335-1914, Rasht, I.R. Iran.Journal Article20240203The aryl-(Z)-N-[2-amino-1,2-dicyanovinyl]formamidine 2 cyclize in solvent-free conditions and in the presence of a base to give a 5-amino-1-aryl-4-cyanoimidazoles 3. Silica sulfuric acid as an efficient and reusable heterogeneous catalyst has been used for the preparation of amidines 2 from formimidate 1 through reaction with aromatic amines at room temperature and in good to excellent yields. All these derivatives were fully characterized by spectroscopic data.Iranian Journal of Catalysis (IJC)A green, efficient, and rapid procedure for the synthesis of pyrano[3,2-c] quinoline and pyrano[3,2-c]pyridone derivatives catalyzed by [BMIm]ClVolume 3 (2013)Issue 1, March 201320240203A green, efficient, and rapid procedure for the synthesis of pyrano[3,2-c] quinoline and pyrano[3,2-c]pyridone derivatives catalyzed by [BMIm]ClENEsmayeelAbbaspour-GilandehYoung Researchers and Elites Club, Ardabil Branch, Islamic Azad University, Ardabil, Iran.SeyyedehCobra AzimiYoung Researchers and Elites Club, Rasht Branch, Islamic Azad University, Rasht, Iran.KuroshRad-MoghadamChemistry Department, University of Guilan, P.O. Box 41335-19141, Rasht, Iran.AidinMohammadi-BarkchaiDepartment of Applied Chemistry, Ardabil Branch, Islamic Azad University, Ardabil, 56157, I.R. Iran.Journal Article20240203A highly practical and efficient preparation of pyrano[3,2-c]pyridone and pyrano[3,2-c]quinoline derivatives was developed via an ionic liquid mediated and promoted multi-component reaction of malononitrile, aldehyde, and 4-hydroxyquinolin-2(1H)-one or 4-hydroxy-6-methylpyridin-2(1H)-one. The combinatorial syntheses were achieved for the first time without applying extra activation energy at ambient temperature while making use of [BMIm]Cl as a catalyst solvent.Iranian Journal of Catalysis (IJC)Facile one-pot synthesis of pyrimido[4,5-d]pyrimidine-2,4-diones in Ionic Liquid and study of their antibacterial activitiesVolume 3 (2013)Issue 1, March 201320240203Facile one-pot synthesis of pyrimido[4,5-d]pyrimidine-2,4-diones in Ionic Liquid and study of their antibacterial activitiesENAyoobBazgirDepartment of Chemistry, Shahid Beheshti University, P.O. Box 1983963113, Tehran, Iran.SeyyedehCobra AzimiYoung Researchers and Elites Club, Rasht Branch, Islamic Azad University, Rasht, Iran.Journal Article20240203A simple, novel, efficient and three-component procedure for the synthesis of pyrimido[4,5-d]pyrimidine-2,4-dione derivatives by the reaction of 6-amino-1,3-dimethyluracil, aldehyde and 2-benzylisothiourea hydrochloride promoted by ionic liquid 1-butyl-3-methylimidazolium bromide ([BMIm]Br) under solvent-free conditions is reported. The presented method is benefited from operational simplicity, simple workup and reusability of ionic liquid. These products were evaluated in vitro for their antibacterial activities.Iranian Journal of Catalysis (IJC)Nano SiO2/H2SO4 as catalyst for the Beckmann rearrangement and deoximation of aldoximesVolume 3 (2013)Issue 1, March 201320240203Nano SiO2/H2SO4 as catalyst for the Beckmann rearrangement and deoximation of aldoximesENMarziyehBagheriDepartment of Chemistry, Faculty of Science, Urmia University, Urmia 57159-165, Iran.MostafaKarimkoshtehDepartment of Chemistry, Faculty of Science, Urmia University, Urmia 57159-165, Iran.Journal Article20240203Nano silica-H2SO4 is an efficient and mild catalysis system for the regeneration of aldehyde from aldoximes. Ketoximes are converted to amides by Beckmann rearrangement in the presence of nano silica-H2SO4. The reactions are carried out in solvent-free conditions under microwave irradiation (600 W) within 50-120 sec in good yields.Iranian Journal of Catalysis (IJC)Improving methodology for the preparation of highly substituted imidazoles using nano-MgAl2O4 as catalyst under microwave irradiationVolume 3 (2013)Issue 1, March 201320240203Improving methodology for the preparation of highly substituted imidazoles using nano-MgAl2O4 as catalyst under microwave irradiationENJavadSafariLaboratory of Organic Compound Research, Department of Organic Chemistry, College of Chemistry, University of Kashan, P.O. Box: 87317-51167 Kashan, I.R. Iran.SoheilaGandomi-RavandiLaboratory of Organic Chemistry Research, Department of Chemistry, College of Chemistry, University of Kashan, Kashan, P.O. Box: 87317-51167, Kashan, Islamic Republic of Iran.ZahraAkbariLaboratory of Organic Compound Research, Department of Organic Chemistry, College of Chemistry, University of Kashan, P.O. Box: 87317-51167, Kashan, I.R., Iran.Journal Article20240203An efficient synthesis of 2,4,5-trisubstituted and 1,2,4,5-tetrasubstituted imidazoles by one-step condensation of an aldehyde, benzil, ammonium acetate and primary amine in the presence of nanocrystalline magnesium aluminate under microwave irradiation is described. The advantages of this catalyst are including simple work-up, low cost and reusability. Compared with conventional methods, the main advantages of the present procedure are its being a green method, its milder conditions, necessary shorter reaction time, and its higher yields and its selectivity. The structures of products were characterized by 1H NMR, 13C NMR, IR, elemental analyses, MS and UV spectral data. Their melting points were compared with literature report.Iranian Journal of Catalysis (IJC)Facile one-pot multicomponent synthesis of 2-amino-6-(2-oxo-2H-chromen- 3-yl)-4-arylpyridine-3-carbonitriles using Brønsted acidic ionic liquid as catalyst under solvent-free conditionsVolume 3 (2013)Issue 1, March 201320240203Facile one-pot multicomponent synthesis of 2-amino-6-(2-oxo-2H-chromen- 3-yl)-4-arylpyridine-3-carbonitriles using Brønsted acidic ionic liquid as catalyst under solvent-free conditionsENJanardhanBanothuDepartment of Chemistry, National Institute of Technology, Warangal, A.P., India.RajithaBavantulaDepartment of Chemistry, National Institute of Technology, Warangal, A.P., India.PeterA. CrooksDepartment of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.Journal Article20240203A series of 2-amino pyridine-3-carbinitrile derivatives incorporated coumarin moiety has developed via multicomponent condensation of 3-acetyl-2H-chromen-2-one, arylaldehydes, malononitrile and ammonium acetate utilizing Brønsted acidic ionic liquid, (4-sulfobutyl)tris(4-sulfophenyl)phosphonium hydrogen sulfate as catalyst under solvent-free conditions. Good yields, short reaction times, straight forward workup, reusability of the ionic liquid and green conditions are the most obvious advantages of this methodology.Iranian Journal of Catalysis (IJC)Theoretical study on the mechanism of hydromethoxylation catalyzed by palladium(II) complexVolume 3 (2013)Issue 1, March 201320240203Theoretical study on the mechanism of hydromethoxylation catalyzed by palladium(II) complexENS.Ali BeyramabadiDepartment of Chemistry, Faculty of Science, Mashhad Branch, Islamic Azad University, Mashhad, Iran.AliMorsaliDepartment of Chemistry, Faculty of Science, Mashhad Branch, Islamic Azad University, Mashhad, Iran.Journal Article20240203Palladium (II) coordination complexes catalyze the reaction of alcohols with ketones to yield ethers. During the catalytic cycle, the alcohol adds selectively to the β-carbon (anti-Markovnikov). In this work, mechanism and kinetics for the reaction of methanol with methyl vinyl ketone (MVK), being catalyzed by Pd, has been theoretically investigated in detail. Using quantum mechanical approach, different probabilities were investigated and ultimately a model was presented in which an enol form is produced in the rate determining step and in continuation is converted into keto form. Considering the solvent effects, the activation energy and the change in Gibbs free energy for the formation of the activated complex for the rate determining step were calculated, which are in good agreement with the experimental value. The evaluation of keto-enol equilibrium constant also showed that the keto form is much more stable than the enol form.