Iranian Journal of Catalysis (IJC)Synthesis, characterization and photocatalytic activity of CeO2-SBA-15Volume 2 (2012)Issue 2, June 201220240203Synthesis, characterization and photocatalytic activity of CeO2-SBA-15ENHamidReza PouretedalDepartment of Applied Chemistry, Maleke-ashtar University of Technology, Shahin-shahr, Esfahan, IranSaraBasatiDepartment of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, 86145-311, IranJournal Article20240203Mesoporous photocatalysts of CeO2/SBA-15 are prepared by two methods of direct synthesis as solvent-usage and solvent-free methods. In solvent-usage method, CeO2/SBA-15 is synthesized in acidic media. While, in solvent-free method, CeO2/SBA-15, has been prepared through the novel path of directly grind cerium salt into the as-prepared samples of SBA-15 occluded with template. This method enables a large amount of cerium to be highly dispersed in the channels of mesoporous silica, also saves time and energy. The resulting composites exhibit photocatalytic activity, and the dispersed CeO2 in SBA-15 illustrates a photodegradation of Congo red (CR) in aqueous solution. X-ray powder diffraction, N2 adsorption-desorption and FT-IR spectroscopy are used to characterize the prepared materials.Iranian Journal of Catalysis (IJC)Synthesis of 1,3,5-tri-substituted pyrazoles promoted by P2O5.SiO2Volume 2 (2012)Issue 2, June 201220240203Synthesis of 1,3,5-tri-substituted pyrazoles promoted by P2O5.SiO2ENAbdolhamidBamoniriDepartment of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran0000-0002-8911-2433BiBiFatemeh MirjaliliDepartment of Chemistry, College of Science, Yazd University, P. O. Box 89195-741, Yazd. Iran.AbbasAli JafariDepartment of Chemistry, College of Science, Yazd University, P.O.Box 89195-741, Yazd, I.R.Iran.FatemehAbasaltianDepartment of Chemistry, College of Science, Yazd University, P.O.Box 89195-741, Yazd, I.R.Iran.Journal Article20240203Silica supported phosphorus pentoxide (P2O5·SiO2) is an efficient catalyst for synthesis of 1,3,5-substituted pyrazoles via the condensation of 1,3-diketones and hydrazines. Simplicity of procedure, mild condition, being solvent-free, high yields, and easy workup are some advantages of this protocol.Iranian Journal of Catalysis (IJC)1,3-Dichloro-5,5-dimethylhydantoin: an efficient catalyst for the solvent free synthesis of 1,8-dioxo-octahydro-xanthenesVolume 2 (2012)Issue 2, June 2012202402031,3-Dichloro-5,5-dimethylhydantoin: an efficient catalyst for the solvent free synthesis of 1,8-dioxo-octahydro-xanthenesENFarhadShiriniDepartment of Chemistry, College of Science, University of Guilan, Rasht, Iran0000-0002-7204-5000KuroshRad-MoghadamChemistry Department, University of Guilan, P.O. Box 41335-19141, Rasht, Iran.TaherehNaghdiDepartment of Chemistry, College of Science, University of Guilan, Rasht, zip code 41335, I.R. IranJournal Article20240203This paper describes the applicability of 1,3-dichloro-5,5-dimethylhydantoin, as a cheap, stable and commercially available catalyst, in the promotion of the synthesis of 1,8-dioxo-octahydro-xanthenes (DOXOs) via the one-pot condensation of aldehydes and cyclic 1,3-dicarbonyl compounds. This novel synthetic method has the advantages of high yields, short reaction times, low cost and availability of the catalyst, solvent-free reaction conditions, simplicity and easy work-up compared to the conventional methods reported in the literature.Iranian Journal of Catalysis (IJC)Brønsted acidic ionic liquid as a metal free catalyst for the one-pot synthesis of α-aminonitriles under mild and solvent-free conditionsVolume 2 (2012)Issue 2, June 201220240203Brønsted acidic ionic liquid as a metal free catalyst for the one-pot synthesis of α-aminonitriles under mild and solvent-free conditionsENLeilaKhazdoozDepartment of Science, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan 81595-158, Iran
Laser and Biophotonics in Biotechnologies Research Center, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan 81595-158, IranAminZareiDepartment of Science, Fasa Branch, Islamic Azad University, PO Box No. 364, Fasa 7461713591, Fars, Iran.AbdolR. HajipourPharmaceutical Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156, Iran.
Department of Pharmacology, University of Wisconsin, Medical School, 1300 University Avenue, Madison, 53706-1532, WI, USA.NafisehsadatSheikhanDepartment of Chemistry, Faculty of Sciences, Najafabad Branch, Islamic Azad University, Najafabad, Esfahan, P.O. Box 517, Iran.Journal Article20240203An efficient, mild and environmentally friendly method was developed for the Strecker reaction to synthesize α-aminonitriles in the presence of methyl imidazolium hydrogen sulfate ([Hmim][HSO4]) as an efficient catalyst. These syntheses were performed via a one-pot three-component condensation of aldehydes (or ketones), amines, and trimethylsilyl cyanide under mild and solvent free conditions.Iranian Journal of Catalysis (IJC)Synthesis of 4,4′-(arylmethylene)bis(1H-pyrazol-5-ols) via multi-component reactions by using silica-bonded sulfamic acid derivativesVolume 2 (2012)Issue 2, June 201220240203Synthesis of 4,4′-(arylmethylene)bis(1H-pyrazol-5-ols) via multi-component reactions by using silica-bonded sulfamic acid derivativesENShekoofehTayebiYoung Researchers Club, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran.KhodabakhshNiknamDepartment of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran.Journal Article20240203The one-pot, multi-component synthesis of 4,4′-(arylmethylene)bis(1H-pyrazol-5-ols) by tandem Knoevenagel-Michael reaction of phenylhydrazine, ethyl acetoacetate and aldehydes in the presence of silica-bonded N-propylpiperazine sulfamic acid (SBPPSA) as a recyclable solid acid catalyst was reported. SBPPSA showed much the same efficiency when used in consecutive reaction runs.Iranian Journal of Catalysis (IJC)Kinetic investigation of photocatalytic degradation of dimethyldisulfide by zeolite A containing nano CdSVolume 2 (2012)Issue 2, June 201220240203Kinetic investigation of photocatalytic degradation of dimethyldisulfide by zeolite A containing nano CdSENAlirezaNezamzadeh-EjhiehDepartment of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, IranZohrehBananDepartment of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran.Journal Article20240203In this research, zeolite A was synthesized from waste porcelain and CdS nano-particles were doped in zeolite framework by a precipitation after an ion exchanging process. All raw and modified samples were characterized by FT-IR, XRD and SEM methods. Primary experiments showed that the good efficiency of loaded nano CdS onto the zeolite A for photodecomposition of dimethyldisulfide (DMDS) under UV irradiation. Hence the effect of some experimental parameters on the kinetics of the photodegradation experiments was studied and the optimal conditions were found as: pH 3, 3 g L–1 of the catalyst and 8 ppm of DMDS concentration. UV-Vis spectrophotometric measurements were performed to determine the degradation extent. The degradation process obeyed first-order kinetics.Iranian Journal of Catalysis (IJC)A new, green and recyclable poly(4-vinylpyridine)-supported copper iodide nanoparticles catalyst for the synthesis of aryl-14H-dibenzo [a-o] xanthenesVolume 2 (2012)Issue 2, June 201220240203A new, green and recyclable poly(4-vinylpyridine)-supported copper iodide nanoparticles catalyst for the synthesis of aryl-14H-dibenzo [a-o] xanthenesENJalalAlbadiDepartment of Chemistry, Faculty of Science, Shahrekord University, Shahrekord, Iran.NasirIravaniDepartment of Chemistry, Faculty of Science, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran.MoloudKhoshakhlaghDepartment of Chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran.Journal Article20240203Poly(4-vinylpyridine)-supported copper iodide nanoparticles is reported as a new, green and recyclable catalyst for the synthesis of aryl-14H-dibenzo [a-o] xanthenes under solvent-free conditions. This catalyst can be recovered by simple filtration and recycled up to 8 consecutive runs without any loss of their efficiency.Iranian Journal of Catalysis (IJC)Sulfonated Porous Carbon (SPC): An efficient and recyclable solid acid catalyst for one-pot three-component synthesis of 2,3-dihydroquinazolin-4(1H)-ones under solvent-free conditionsVolume 2 (2012)Issue 2, June 201220240203Sulfonated Porous Carbon (SPC): An efficient and recyclable solid acid catalyst for one-pot three-component synthesis of 2,3-dihydroquinazolin-4(1H)-ones under solvent-free conditionsENArashShokrolahiChemistry Department, Malek-ashtar University of Technology, Shahin Shahr, P.O.Box 83145-115, I. R. Iran.AbbasZaliChemistry Department, Malek-ashtar University of Technology, Shahin Shahr, P.O.Box 83145-115, I. R. Iran.MohammadAli ZareiChemistry Department Faculty of Materials, Malek-ashtar University of Technology, Tehran, I.R. Iran.KarimEsmaeilpourChemistry Department, Malek-ashtar University of Technology, Shahin-shahr, P.O.Box 83145-115, I. R. Iran.Journal Article20240203A simple and efficient procedure has been developed for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones derivatives under solvent-free conditions. This method uses the condensation of isatoic anhydride, aldehydes, and amines in the presence of a catalytic amount Sulfonated Porous Carbon (SPC). One of the important advantages of the new method is that the SPC could be recycled and reused.