Volume 3, Issue 3
مرور بر اساس
ارسال های اخیر
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Spotlights: Benzyltriphenylphosphonium tribromide (BTPTB): A convenient and versatile catalyst in organic synthesis
(Islamic Azad University, Shahreza Branch, 2013-09-01)Mohaddeseh Safarpoor Nikoo Langroodi was born in Langrood, Guilan, I.R. Iran. She received B.S. in chemistry from Shahid Beheshti University (2006) and his M.S. in organic chemistry from University of Guilan (2010) under ...
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One-pot preparation of N,N′-alkylidenebisamides promoted by BF3.SiO2
(Islamic Azad University, Shahreza Branch, 2013-09-01)A highly efficient procedure for the preparation of N,N'-alkylidenebisamides in the presence of BF3.SiO2 as a catalyst is described. N,N'-alkylidenebisamides have been prepared via one-pot three-component condensation ...
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Spotlights: Potassium Nitrosodisulfonate (Fremy's salt)
(Islamic Azad University, Shahreza Branch, 2013-09-01)Toktam Faal Rastegar was born in Quchan (Iran). She completed her B.Sc. in Chemistry in 2005 from Ferdowsi University, Mashhad. She was graduated from M.Sc. degree in Organic Chemistry from Bu-Ali Sina University (2008), ...
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Preparation, characterization and determination of photocatalytic activity of MCM-41/ZnO and MCM-48/ZnO nanocomposites
(Islamic Azad University, Shahreza Branch, 2013-09-01)The direct and indirect methods in solvent media and grinding method in a solvent-free media were used to prepare the MCM-41/ZnO and MCM-48/ZnO photocatalysts. The X-ray diffraction (XRD) patterns showed that zinc oxide ...
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Synthesis and in-vitro antimicrobial screening of 3-cinnamoyl coumarin and 3-[3-(1H-indol-2-yl)-3-aryl-propanoyl]-2H-chromen-2-ones
(Islamic Azad University, Shahreza Branch, 2013-09-01)An efficient synthesis of some novel coumarin derivatives via 1, 4- Michael addition of indole to coumarin chalcones catalyzed by cellulose sulphonic acid (CSA) under solvent free conditions is described. The corresponding ...
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Sulfuric acid {[3-(3-silicapropyl)sulfanyl]propyl}ester as a recyclable solid acid catalyst for the synthesis of α-amino nitriles
(Islamic Azad University, Shahreza Branch, 2013-09-01)Sulfuric acid {[3-(3-silicapropyl)sulfanyl]propyl}ester (SASPSPE) is employed as a recyclable catalyst for the synthesis of α-amino nitriles. These syntheses were performed via a one-pot three-component condensation of ...
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Cellulose sulfuric acid: an efficient biopolymer-based catalyst for the synthesis of 5H-dibenzo[b,i]xanthene-tetraones and spiro[dibenzo[b,i]xanthene-13,3'-indoline]-pentaones under solvent free conditions
(Islamic Azad University, Shahreza Branch, 2013-09-01)A practical and green method for the synthesis of 5H-dibenzo[b,i]xanthene-tetraones and spiro[dibenzo[b,i]xanthene-13,3'-indoline]-pentaones by the condensation of 2-hydroxynaphthalene-1,4-dione with aldehydes or isatins, ...
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Nanosized mesoporous composite PW12-APTES@KIT-6: An efficient heterogeneous catalyst for selective oxidation of sulfides to sulfoxides and sulfones
(Islamic Azad University, Shahreza Branch, 2013-09-01)Surface of mesostructured silica, KIT-6, was modified by grafting 3-aminopropyl-triethoxysilane (APTES) to have the positive charge, and thus, to provide sites for the immobilization of H3PW12O40 (PW12). This modified-nanosized ...
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Structure and isomeric studies of 1,3-diaryl-H-benzo[f]chromene, catalyst effect or thermodynamic stability? An ab initio study
(Islamic Azad University, Shahreza Branch, 2013-09-01)Two possible isomers of some 1,3-diaryl-H-benzo[f]chromene have been studied using density functional theory. Structures of E1 and E2 isomers were optimized at the B3LYP and MP2 levels with different basis sets. The total ...
