Iranian Journal of Catalysis (IJC)Application of dimeric ortho-palladated complex of 2-methoxyphenethylamine in the Heck coupling reactionVolume 2 (2012)Issue 3, September 201220240203Application of dimeric ortho-palladated complex of 2-methoxyphenethylamine in the Heck coupling reactionENAbdolHajipourPharmaceutical 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, USAFatemehAbrishamiDepartment of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology, Tehran, Iran.Journal Article20240203The application of the [Pd{C6H3(CH2CH2NH2)-4-OMe-5-κ2-C,N}(μ-Br)]2 complex of 2-methoxyphenethylamine in the Heck coupling reaction was considered under both conventional and microwave irradiation conditions, and their results were compared. This complex is an efficient, stable and non-sensitive to air and moisture catalyst for the vinylation of substituted aryl halides with different electronic properties. The cross-coupled products were produced in good to excellent yields using a catalytic amount of this complex in N-methyl-2-pyrrolidone (NMP) at 130 °C. In comparison to conventional heating conditions, the reactions under microwave irradiation gave higher yields in shorter reaction times.Iranian Journal of Catalysis (IJC)NanoZnO as an efficient & reusable catalyst for the preparation of 1,4-DHPs via Hantzsch reactionVolume 2 (2012)Issue 3, September 201220240203NanoZnO as an efficient & reusable catalyst for the preparation of 1,4-DHPs via Hantzsch reactionENFatemehTamaddonDepartment of Chemistry, Faculty of Science, Yazd University, Yazd 89195-741, Iran.SomayehMoradiDepartment of Chemistry, Faculty of Science, Yazd University, Yazd 89195-741, Iran.Journal Article20240203Easily prepared nanoZnO was found to be as an efficient catalyst in the synthesis of 1,4-DHPs via four-component reaction of 1,3-dicarbonyls, aldehydes and ammonium carbonate in water at 60 °C. The prepared nanoZnO was characterized by XRD and FT-IR analysis, while the determined specific surface area of nano catalyst by BET method was 33 m2/g.Iranian Journal of Catalysis (IJC)Triethylamine-bonded sulfonic acid {[Et3N-SO3H]Cl} as an efficient and homogeneous catalyst for the synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-onesVolume 2 (2012)Issue 3, September 201220240203Triethylamine-bonded sulfonic acid {[Et3N-SO3H]Cl} as an efficient and homogeneous catalyst for the synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-onesENAbdolkarimZareDepartment of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran, Iran0000-0002-8210-3155RoghayyehKhanivarDepartment of Chemistry, Payame Noor University, PO BOX 19395-4697, Tehran, IranMariaMerajoddinDepartment of Chemistry, Payame Noor University, Iran.MasoudKazem-RostamiYoung Researchers Club, Takestan Branch, Islamic Azad University, Takestan, Iran.MohammadMahdi Ahmad-ZadehDepartment of Chemistry, Payame Noor University, PO BOX 19395-4697, Tehran, IranAhmadReza Moosavi-ZareDepartment of Chemistry, Sayyed Jamaleddin Asadabadi University, Asadabad, 6541861841, Iran.AlirezaHasaninejadDepartment of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, IranJournal Article20240203Brønsted acidic ionic liquid triethylamine-bonded sulfonic acid {[Et3N-SO3H]Cl} efficiently catalyzes the one-pot multi-component condensation of 2-naphthol with arylaldehydes and dimedone (5,5-dimethylcyclohexane-1,3-dione) under solvent-free conditions to afford 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-ones in high yields and relatively short reaction times.Iranian Journal of Catalysis (IJC)Introduction of two efficient catalysts for the synthesis of 1,8-dioxo-octahydroxanthene derivatives in the absence of solventVolume 2 (2012)Issue 3, September 201220240203Introduction of two efficient catalysts for the synthesis of 1,8-dioxo-octahydroxanthene derivatives in the absence of solventENFarhadShiriniDepartment of Chemistry, College of Science, University of Guilan, Rasht, Iran0000-0002-7204-5000GholamHossein ImanzadehDepartment of Chemistry, College of Science, University of Mohaghegh Ardabili, Ardabil, Iran.MasoumehAbediniDepartment of Chemistry, College of Science, University of Guilan, Rasht, zip code 41335, I.R. Iran.MaryamAkberi Dokhte-GhazianiDepartment of Chemistry, College of Science, University of Guilan, Rasht, zip code 41335, I.R. Iran.MohaddeshesSafarpoor LangroodiDepartment of Chemistry, College of Science, University of Guilan, Rasht, zip code 41335, I.R. Iran.ParisaGhods GhasemabadiDepartment of Chemistry, College of Science, University of Guilan, Rasht, zip code 41335, I.R. Iran.
Department of Chemistry, College of Science, University of Mohaghegh Ardabili, Ardabil, Iran.Journal Article202402031,3-Dibromo-5,5-dimethylhydantoin (DBH) and benzyltriphenylphosphoniumtribromide (BTPTB) were used as efficient catalysts for the promotion of the synthesis of 1,8-dioxo-octahydroxanthene derivatives (DOXOs) via a one-pot three component condensation of aldehydes and cyclic 1,3-dicarbonyl compounds in the absence of solvent.Iranian Journal of Catalysis (IJC)Magnetic Fe3O4 nanoparticles as a highly efficient catalyst for the synthesis of imidazoles under ultrasound irradiationVolume 2 (2012)Issue 3, September 201220240203Magnetic Fe3O4 nanoparticles as a highly efficient catalyst for the synthesis of imidazoles under ultrasound irradiationENJavadSafariLaboratory of Organic Compound Research, Department of Organic Chemistry, College of Chemistry, University of Kashan, P.O. Box: 87317-51167 Kashan, I.R. Iran.ZohreZarnegarLaboratory of Organic Compound Research, Department of Organic Chemistry, College of Chemistry, University of Kashan, P.O. Box: 87317-51167, Kashan, I.R., Iran.Journal Article20240203To be fairly general and catalyst is easily separated by magnetic devices and can be reused without any apparent loss of activity for the reaction. Fe3O4 nanoparticles were prepared by chemical coprecipitation method and was found to be a mild and effective catalyst for the efficient, one-pot, three-component synthesis of 2,4,5-trisubstituted imidazoles at room temperature under ultrasound irradiation. The high yields of products and short reaction time were attributed to the nanosize of about 20 nm in which the catalyst could act as a nanoreactor. This methodology is found.Iranian Journal of Catalysis (IJC)Bi(NO3)3.5H2O: An efficient acidic reagent for synthesis of azo dyes at room temperatureVolume 2 (2012)Issue 3, September 201220240203Bi(NO3)3.5H2O: An efficient acidic reagent for synthesis of azo dyes at room temperatureENBiBi Fatemeh MirjaliliDepartment of Chemistry, College of Science, Yazd University, Yazd, P.O. Box 89195-741, Iran0000-0002-6588-4041AbdolhamidBamoniriDepartment of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran0000-0002-8911-2433NaimehSalehiDepartment of Chemistry, College of Science, Yazd University, Yazd, P.O. Box 89195-741, IranJournal Article20240203An one-pot method has been developed for the synthesis of azo dyes via sequential diazotization–diazo coupling of aromatic amines with coupling agents at room temperature in the presence of Bi(NO3)3. 5H2O. Short reaction times, high yields, a clean process, simple methodology, easy work-up and green conditions are advantages of this protocol.Iranian Journal of Catalysis (IJC)Photocatalytic efficiency of CuFe2O4 by supporting on clinoptilolite in the decolorization of acid red 206 aqueous solutionsVolume 2 (2012)Issue 3, September 201220240203Photocatalytic efficiency of CuFe2O4 by supporting on clinoptilolite in the decolorization of acid red 206 aqueous solutionsENAzarBagheri GhomiDepartment of Chemistry, Center Tehran Branch, Islamic Azad University, Tehran, Iran.VahidAshayeriDepartment of Chemistry, Center Tehran Branch, Islamic Azad University, Tehran, Iran.Journal Article20240203In this paper CuFe2O4, nanocrystalline powders were prepared. Also, the supported Cu ferrite was obtained by impregnation of the supports with Cu and Fe nitrates solutions, for calcination temperature 450 ºC. The samples were characterized by X-ray powder diffraction (XRD) and Fourier transform-infrared spectroscopy (FT-IR). Photocatalytic degradation of acid red 206 in water was studied. CuFe2O4 was supported on Clinoptilolite using solid-state dispersion (SSD) method. The results show that the CuFe2O4/zeoliteis an active photocatalyst. The maximum effect of photodegradation was observed at 10 wt. %CuFe2O4, 90 %wt. Clinoptilolite. A first order reaction with k = 0.123 min-1 was observed. The effects of some parameters such as pH, amount of photocatalyst, initial concentration of dye were examined.Iranian Journal of Catalysis (IJC)Urea-hydrogen peroxide/silica phosphoric acid-catalyzed oxidation- condensation Tandem reaction: One-pot synthesis of 2-substituted benzimidazoles from alcoholsVolume 2 (2012)Issue 3, September 201220240203Urea-hydrogen peroxide/silica phosphoric acid-catalyzed oxidation- condensation Tandem reaction: One-pot synthesis of 2-substituted benzimidazoles from alcoholsENAhmadReza MomeniDepartment of Chemistry, Faculty of Science, Shahrekord University, Shahrekord, Iran.HeshmatAllah SamimiFaculty of Sciences, Shahrekord University, 115-381, Shahrekord, Iran.ReyhanehJahanianFaculty of Sciences, Shahrekord University, 115-381, Shahrekord, Iran.Journal Article20240203An efficient one-pot oxidation/condensation tandem process has been developed for the synthesis of 2-substituted benzimidazole derivatives from benzylic alcohols and 1,2-phenylenediamine with use of urea-hydrogen peroxide/silica phosphoric acid as a bifunctional catalyst. This method provides a rapid and efficient access to 2-substituted benzimidazoles.