Relevant articles and documents
Platinum nanoparticles supported on polymeric ionic liquid functionalized magnetic silica: effective and reusable heterogeneous catalysts for the selective oxidation of alcohols in water
Vessally, Esmail Ghasemisarabbadeih, Mostafa Ekhteyari, Zeynab Hosseinzadeh-Khanmiri, Rahim Ghorbani-Kalhor, Ebrahim Ejlali, Ladan
In this research, the syntheses of core-shell magnetic silica nanostructures, functionalized by a polymeric ionic liquid and immobilization of platinum nanoparticles, are described. Firstly, the magnetic silica nanoparticles were synthesized and modified using an amine-containing organosilane through a single-step process. The synthesized nanostructures were functionalized by the synthesis and polymerization of a pyridinium ionic liquid and a methyl methacrylate monomer, respectively, onto their surfaces. The platinum nanoparticles were immobilized on the functionalized nanoparticles. The obtained functionalized nanostructures have been used in the selective aerobic oxidation, in an aqueous medium, of primary and encumbered secondary aliphatic alcohols, and exhibit high activity at mild temperatures.
Role of water and p-fluorobenzoic acid in mn(ii)t(p-cl)pp catalyzed aerobic oxidation of p-fluorotoluene
Fang, Yong-Qi Lv, Chun-Xu Lu, Ming
A solvent-free manganoporphyrin-catalyzed oxidiation of p-fluorotoluene was developed, using oxygen as a clean and cheap oxidant. The parameters that have relationship with conversion were investigated. The conversion of p-fluorotoluene was found to be depend on the stability of catalytic environment. Water and p-fluorobenzoic acid were the final oxidation products of p-fluorotoluene, would inhibit the activity of catalyst. The conversion would be increased from 7.0 to 16.5 %, by the dehydration of acetic anhydride.
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