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Synergetic Effect of La and Ba Promoters on Nanostructured Iron Catalyst in Fischer-Tropsch Synthesis（图）
nanosized iron catalyst microemulsion method Fischer-Tropsch synthesis promoter effect
2013/10/7
Effect of promoters such as Barium and Lanthanum has been investigated on the conventional nanostructured iron catalyst in Fischer-Tropsch synthesis (FTS). The nanosized iron-based catalysts were prep...
Silica-Bonded N-Propyl Diethylenetriamine Sulfamic Acid as a Recyclable Solid Acid Catalyst for the Synthesis of α-Aminonitriles（图）
silica-bonded N-propyl diethylenetriamine sulfamic acid α-aminonitrile solid acid aldehyde
2013/10/7
Silica-bonded N-propyl diethylenetriamine sulfamic acid (SBPDSA) is employed as a recyclable catalyst to synthesize α-aminonitriles. These syntheses involved one-pot condensation of an aldehyde, an am...
Mild and Highly Efficient Method for Synthesis of 14-Aryl(alkyl)- 14H-dibenzo[a,j]xanthenes and 1,8-Dioxooctahydroxanthene Derivatives Using Pentafluorophenyl Ammonium Triflate as a Novel Organocatalyst（图）
pentafluorophenyl ammonium triflate organocatalyst xanthene β-naphthol
2013/10/7
A simple and facile synthesis of 14-aryl and alkyl-14H-dibenzo[a,j]xanthenes and 1,8-dioxooctahydroxanthene derivatives has been successfully developed by treatment of β-naphthol or dimedone with alde...
One-Pot Four-Component Dakin-West Synthesis of β-Acetamido Ketones Catalyzed by a Vanadium-Substituted Heteropolyacid （图）
homogeneous catalysis heteropolyacid Keggin Wells-Dawson Dakin-West β-acetamido ketone
2013/10/7
The multicomponent condensation of an aryl aldehyde, acetyl chloride, acetonitrile, and enolizable ketone as one-pot synthesis of β-acetamido ketones in high yields was investigated using commercial, ...
Sulfonated Carbon Catalyzed Biginelli Reaction for One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones and -thiones（图）
sulfonated carbon solid acid Biginelli reaction heterogeneous catalysis solvent-free condition
2013/10/8
A sulfonated carbon material was shown to be a highly efficient, eco-friendly, and recyclable solid acid catalyst for the Biginelli reaction of β-ketoester, aldehyde, and urea or thiourea under solven...
SiO2-NaHSO4 as an Efficient Reusable Heterogeneous Catalyst for the One-Pot Three-Component Synthesis of Octahydro-quinazolin-2,5-diones in Water（图）
octahydro-quinazolin-2,5-dione aromatic aldehyde dimedone urea water
2013/10/8
An environmentally benign method for the synthesis of octahydro-quinazolin-2,5-diones by the reaction of aromatic aldehydes,dimedone, and urea in the presence of SiO2-NaHSO4 is reported. SiO2-NaHSO4 a...
Ammonium Dihydrogen Phosphate Catalyst for One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones（图）
3,4-dihydropyrimidin-2-(1H)-one ammonium dihydrogen phosphate solvent free condensation
2013/10/8
A one-pot three component Biginelli condensation of different substituted aromatic and aliphatic aldehydes with ethyl acetoacetate and urea to the respective 3,4-dihydropyrimidin-2-(1H)-ones under sol...
Synthesis of 2-Substituted Benzimidazoles and 1,5-Disubstituted Benzodiazepines on Alumina and Zirconia Catalysts（图）
2-substituted benzimidazoles 1,5-disubstituted benzodiazepines manganese oxide alumina zirconia
2013/10/8
In this study, alumina, zirconia, manganese oxide/alumina, and manganese oxide/zirconia have been investigated for their catalytic activity in the condensation reaction between o-phenylenediamine and ...
Hydrothermal Synthesis of Porous Ag2S Sensitized TiO2 Catalysts and Their Photocatalytic Activities in the Visible Light Range（图）
silver sulfide titanium dioxide visible light photocatalytic activity methylene blue
2013/10/9
Porous Ag2S sensitized TiO2 catalysts were synthesized by the hydrothermal process. The crystallization and porous structure of the Ag2S/TiO2 composite photocatalysts were investigated by X-ray diffra...
Nanocasting, Template Synthesis, and Structural Studies on Cesium Salt of Phosphotungstic Acid for the Synthesis of Novel 1,3,5-Triaryl-pyrazoline Derivatives（图）（图）
nanocasting nanoparticle green chemistry 1,3,5-triaryl-2-pyrazoline polyoxometalate
2013/10/9
The elimination of the silica matrix of composites by HF occurred by a two-step reaction deposition of a Cs2.5H0.5PW12O40 (CsHPW) salt nanocrystal. We used 2D hexagonal SBA-15 silica as a template for...
Synthesis of Nickel Hexacyanoferrate Nanoparticles and Their Potential as Heterogeneous Catalysts for the Solvent-Free Oxidation of Benzyl Alcohol（图）
hexacyanoferrate nanoparticle heterogeneous catalyst benzyl alcohol benzaldehyde
2013/10/9
Nickel hexacyanoferrate nanoparticles were synthesized and characterized using elemental analysis, thermal analysis, infrared spectroscopy, and X-ray diffraction. A FE-SEM image of the nickel hexacyan...
Cobalt Nanoparticles Promoted Highly Efficient One Pot Four-Component Synthesis of 1,4-Dihydropyridines under Solvent-Free Conditions（图）
cobalt nanoparticle 1,4-dihydropyridine four-component condensation heterogeneou catalyst magnetically separable catalyst
2013/10/10
A straightforward and general method has been developed for the synthesis of C5-unsubstitiuted 1,4-dihydropyridines by a reaction using dimedone, acetophenone, aromatic aldehydes, and ammonium acetate...
Sulfuric Acid ([3-(3-Silicapropyl)sulfanyl]propyl)ester as a Recyclable Catalyst for the Synthesis of 4,4'-(Arylmethylene)bis(1H-pyrazol-5-ols)（图）
sulfuric acid sulfanyl]propyl)ester silica-bonded N-propyl sulfamic acid 3-methyl-l-phenyl-5-pyrazolone aldehydes
2013/10/12
Sulfuric acid ([3-(3-silicapropyl)sulfanyl]propyl)ester is employed as a recyclable catalyst for the condensation reaction between aromatic aldehydes and 3-methyl-l-phenyl-5-pyrazolone. This condensat...
Synthesis, Characterization, and Catalytic Activity of Nanocrystalline La1-xEuxFeO3 during the Combustion of Toluene（图）
perovskite sol-gel europium volatile organic compounds catalytic oxidation
2013/10/12
Nanostructured LaFeO3 and substituted La1-xEuxFeO3 (x = 0.1, 0.15, and 0.2) perovskites were synthesized by sol-gel auto-combustion and their activities during the combustion of toluene were evaluated...
Silica Sulfuric Acid: An Efficient Heterogeneous Catalyst for the One-Pot Synthesis of 1,4-Dihydropyridines under Mild and Solvent-Free Conditions（图）
aldehyde ethyl acetoacetate ammonium acetate silica sulfuric acid 1,4-dihydropyridine
2013/10/12
A series of 1,4-dihydropyridines have been prepared by a one-pot condensation of aldehydes, ethyl acetoacetate, and ammonium acetate in the presence of a heterogeneous catalyst silica sulfuric acid at...