Bahador Karami
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View article: Magnetic lignin-supported sulfonic acid ionic liquid: a novel catalyst for synthesis of 2-amino-4-aryl-4 <i>H</i> -benzo[ <i>f</i> ]chromen-3-carbonitrile derivatives
Magnetic lignin-supported sulfonic acid ionic liquid: a novel catalyst for synthesis of 2-amino-4-aryl-4 <i>H</i> -benzo[ <i>f</i> ]chromen-3-carbonitrile derivatives Open
A novel Brønsted acidic ionic liquid immobilized on modified magnetic lignin (Fe 3 O 4 /MPL–[IL]) was successfully synthesized and comprehensively characterized by FT-IR, XRD, EDX, VSM, FE-SEM, TGA, and TEM analyses.
View article: Green synthesis of silver/silver oxide nanostructures using the Malva sylvestris extract prior to simultaneous distillation extraction: synthesis, phytochemical and biological analysis
Green synthesis of silver/silver oxide nanostructures using the Malva sylvestris extract prior to simultaneous distillation extraction: synthesis, phytochemical and biological analysis Open
Nanotechnology and nanoscience are due to their numerous uses in medicine, engineering, and water pollution sensors and their expanding research fields. In this study, the essential oil, methanolic extract, and biosynthesized silver/silver…
View article: A efficient, regioselective and solvent free synthesis of 5,9-dihydropyrimido[4,5-e][1,2,4]triazolo[1,5-a]pyrimidine-6,8(4H,7H)-diones derivatives in presence nanocatalyst sulfuric acid grafted with silica-3-aminotriazol
A efficient, regioselective and solvent free synthesis of 5,9-dihydropyrimido[4,5-e][1,2,4]triazolo[1,5-a]pyrimidine-6,8(4H,7H)-diones derivatives in presence nanocatalyst sulfuric acid grafted with silica-3-aminotriazol Open
In this research, SO3H-functionalized Silica grafted 3-amino triazol has been prepared and identified through FT-IR, XRD, EDX, Fe-SEM, and TGA spectra. 3-chloropropyltriethoxysilane was first reacted with silica nanoparticles and then trea…
View article: Dual Brønsted acidic-basic function immobilized on the 3D mesoporous polycalix [4]resorcinarene: As a highly recyclable catalyst for the synthesis of spiro acenaphthylene/indene heterocycles
Dual Brønsted acidic-basic function immobilized on the 3D mesoporous polycalix [4]resorcinarene: As a highly recyclable catalyst for the synthesis of spiro acenaphthylene/indene heterocycles Open
In this study, a novel dual Brønsted acidic-basic nano-scale porous organic polymer catalyst, PC4RA@SiPr-Pip-BuSO3H, was synthesized through various steps: preparation of a 3D network of polycalix, modification with (3-chloropropyl)-trimet…
View article: Tungstic acid-functionalized polycalix[4]resorcinarene as a cavity-containing hyper-branched supramolecular and recoverable acidic catalyst in 4<i>H</i>-pyran synthesis
Tungstic acid-functionalized polycalix[4]resorcinarene as a cavity-containing hyper-branched supramolecular and recoverable acidic catalyst in 4<i>H</i>-pyran synthesis Open
A 3D porous organic polymer was synthesized using a calix[4]resorcinarene macrocycle. The cavity-containing polymer was modified with inorganic Brønsted acid (OWO 3 H) to simultaneously use host-guest and acidic aspects of this catalyst in…
View article: Glucose-Decorated Silica-Molybdate Complex: A Novel Catalyst for Facile Synthesis of Pyrano[2,3-d]-Pyrimidine Derivatives
Glucose-Decorated Silica-Molybdate Complex: A Novel Catalyst for Facile Synthesis of Pyrano[2,3-d]-Pyrimidine Derivatives Open
This article describes the preparation and identification of SiO2@Glu/Si(OEt)2(CH2)3N = Mo[Mo5O18] as a new bifunctional acid-base catalyst (both acidic and basic Lewis sites). Aminopropyltriethoxysilane was first reacted with hexamolybdat…
View article: TiO2-coated graphene oxide-molybdate complex as a new separable nanocatalyst for the synthesis of pyrrole derivatives by Paal-Knorr reaction
TiO2-coated graphene oxide-molybdate complex as a new separable nanocatalyst for the synthesis of pyrrole derivatives by Paal-Knorr reaction Open
The preparation of chemical and pharmaceutical compounds through organic reactions has always been associated with the production of environmental waste. Growth population and concerns about ecological pollution increase the interest in us…
View article: Synthesis and characterization of thiophene-derived palladium(<scp>ii</scp>) complex immobilized on FSM-16 and its application in the novel synthesis of 7-(aryl)-7,12-dihydro-6<i>H</i>-indeno[1,2,4]triazolo[1,5-<i>a</i>]pyrimidine-6-one derivatives
Synthesis and characterization of thiophene-derived palladium(<span>ii</span>) complex immobilized on FSM-16 and its application in the novel synthesis of 7-(aryl)-7,12-dihydro-6<i>H</i>-indeno[1,2,4]triazolo[1,5-<i>a</i>]pyrimidine-6-one derivatives Open
The present study aims at synthesizing a palladium complex with a thiophene-carboimine ligand, supported on FSM-16 as a mesoporous silica support.
View article: Efficient and Facile Synthesis of Chromenopyrano[2,3-b] pyridine Derivatives Catalyzed by Sodium Carbonate
Efficient and Facile Synthesis of Chromenopyrano[2,3-b] pyridine Derivatives Catalyzed by Sodium Carbonate Open
In this research, a number of new and known chromenopyrano[2,3-b]pyridine derivatives have been prepared. Initially, according to the reported procedure, pyrano[2,3-c]chromene derivatives were synthesized by the reaction between 4-hydroxyc…
View article: Molybdic Acid-Functionalized Nano-Fe3O4@TiO2 as a Novel and Magnetically Separable Catalyst for the Synthesis of Coumarin-Containing Sulfonamide Derivatives
Molybdic Acid-Functionalized Nano-Fe3O4@TiO2 as a Novel and Magnetically Separable Catalyst for the Synthesis of Coumarin-Containing Sulfonamide Derivatives Open
Supported molybdic acid on nano-Fe3O4@TiO2 (Fe3O4@TiO2@(CH2)3OMoO3H) has been successfully prepared, char-acterized and applied as a catalyst for the synthesis of sulfonamide containing coumarin moieties. The prepared Fe3O4nanoparticles by…
View article: Synthesis and Biological Evaluation of 4-hydroxychromenyl arylmethyl-6-hydroxy pyrimidine-2, 4-dione Derivatives
Synthesis and Biological Evaluation of 4-hydroxychromenyl arylmethyl-6-hydroxy pyrimidine-2, 4-dione Derivatives Open
Background: An efficient, promoted tri-component catalytic reaction between barbituric acid (or N,N-dimethyl barbituric acid), 4-hydroxy coumarin, and a wide range of aryl aldehydes using zinc oxide nanowires (ZnO NWs) to obtain some new 4…
View article: Preparation and characterization of novel phthalhydrazide-functionalized MCM-41 and its application in the one-pot synthesis of coumarin-fused triazolopyrimidines
Preparation and characterization of novel phthalhydrazide-functionalized MCM-41 and its application in the one-pot synthesis of coumarin-fused triazolopyrimidines Open
Preparation and characterization of novel phthalhydrazide-functionalized MCM-41 and its application in the one-pot synthesis of 4-hydroxycoumarin-fused triazolopyrimidines.
View article: Nano-Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-supported boron sulfonic acid as a novel magnetically heterogeneous catalyst for the synthesis of pyrano coumarins
Nano-Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-supported boron sulfonic acid as a novel magnetically heterogeneous catalyst for the synthesis of pyrano coumarins Open
A novel magnetically heterogeneous catalyst based on the immobilization of boron sulfonic acid onto Fe3O4@SiO2nanoparticles (Fe3O4@SiO2–BSA) is reported. It was characterizedviaFT-IR, XRD, SEM, EDS, and VSM analysis.