Volume 1, Issue 2
مرور بر اساس
ارسال های اخیر
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Nanocrystalline TiO2 as an efficient and reusable catalyst for the one-pot synthesis of polyhydroquinolien derivatives via Hantzsch reaction
(Islamic Azad University, Shahreza Branch, 2011-12-01)An efficient synthesis of polyhydroquinoline derivatives was reported via four-component coupling reactions of aldehydes, 1,3-dicarbonyl ketones (dimedone or 1,3-cyclohexanedione), ethyl acetoacetate or methyl acetoacetate ...
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Sulfuric acid ([3-(3-silicapropyl)-sulfanyl]propyl)ester as recyclable catalyst for the silylation of hydroxyl groups
(Islamic Azad University, Shahreza Branch, 2011-12-01)Sulfuric acid ([3-(3-silicapropyl)sulfanyl]propyl]ester (SASPSPE) is employed as a recyclable catalyst for the silylation of hydroxyl groups. A good range of primary, secondary alcohols and phenolic hydroxyl groups were ...
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A comparison between the heterogeneous photodecolorization of an azo dye using Ni/P zeolite and NiS/P zeolite catalysts
(Islamic Azad University, Shahreza Branch, 2011-12-01)A comparison of the photoefficiency of Ni(II) and NiS incorporated into zeolite P towards photodecolorization of Eriochrome Black T dye solution was investigated in a photocatalytic reactor using UV lamp as a light source. ...
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Nano-BF3.SiO2: A reusable and eco-friendly catalyst for thioacetalization and trans-thioacetalization reactions
(Islamic Azad University, Shahreza Branch, 2011-12-01)Nano-silica supported boron trifluoride (BF3.SiO2) is an efficient, reusable and eco-friendly catalyst for chemoselective thioacetalization of aldehydes and ketones. So, this catalyst was applied for transthioacetalization ...
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Nano silica chromic acid/wet SiO2 and NaNO2 as an efficient reagent system for synthesis of azo dyes based on 1-naphthol at room temperature and solvent-free conditions
(Islamic Azad University, Shahreza Branch, 2011-12-01)A convenient, rapid, and one-pot method for the synthesis of azo dyes has been developed. In this protocol, diazotization reagent (ArN2+ -CrO3–SiO2) was prepared via grinding of ...
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BaO/TiO2-ZrO2 as a green and efficient basic catalyst for Knoevenagel condensation reaction
(Islamic Azad University, Shahreza Branch, 2011-12-01)A simple and green synthetic strategy to prepare BaO/TiO2-ZrO2 as a solid base catalyst was reported. These materials with various amounts of BaO were prepared by the adsorption method. The physical and chemical properties ...
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Solvent-free direct ortho C-acylation of phenolic systems by methanesulfonic acid as catalyst
(Islamic Azad University, Shahreza Branch, 2011-12-01)The use of methanesulfonic acid as a Brønsted acid for direct ortho-acylation of phenols and naphthols proves to be a convenient, more general and direct route to various hydroxyaryl ketones. The route is regioselective, ...
