Hydrogenation Of Sulfones Research Articles

Hydroconversion of Oxidation Products of Sulfur-Containing Aromatic Compounds

Hydroconversion of benzo- and dibenzothiophene sulfone on a Ni–Mo sulfide catalyst based on mesoporous aluminosilicate Al-HMS and on unsupported catalysts prepared in situ in the course of decomposition of poorly soluble precursors (molybdenum hexacarbonyl, nickel naphthenate) was studied. Hydrogenation of sulfones was perfpormed at 250, 340, and 380°С and elevated СО pressure in the presence of water ensuring in situ generation of hydrogen via water-gas shift reaction.

Preparation of Pt/polypyrrole–para toluene sulfonate hydrogen peroxide sensitive electrode for the utilizing as a biosensor

A film electrode with electropolymerization of pyrrole (Py) and para-toluene sulfonate (pTS) as a anionic dopant is prepared and its sensitivity to hydrogen peroxide is investigated. The polypyrrole is deposited on a 0.5 cm2 Pt plate an electrochemically prepared pTS ion-doped polypyrrole film by scanning the electrode potential between − 0.8 and + 0.8 V at a scan rate of 20 mV/s. The electrode's sensitivity to hydrogen peroxide is investigated at room temperature using 0.1 M phosphate buffer at pH 7.5. The working potential is found as a 0.3 V. The concentrations of pyrrole and pTS are 50mM M and 25 mM. Polypyrrole was coated on the electrode surface within 10 cycles. İmmobilization of glucose oxidase carried out on Pt/polypyrrole–para toluene sulfonate (Pt/PPy-pTS) film by cross-linking with glutaraldehyde. The morphology of electrodes was characterized by SEM and AFM. Moreover, contact angle measurements were made with 1 μL water of polymer film and enzyme electrode. It has shown that enzyme electrode is very sensitive against to glucose.

Iridium-Catalyzed Enantioselective Hydrogenation of Sulfones

Iridium-Catalyzed Enantioselective Hydrogenation of Sulfones

Optimization of synthesis of a sulfonate hydrogen sulfide corrosion inhibitor

The inhibiting power of calcium alkylphenol sulfonate obtained by varying the ratios of the initial components was investigated with the optimization method. Using a method from mathematical statistics, the optimum values of the ratio of the basic reagents and conditions of synthesis of effective hydrogen-sulfide metal corrosion inhibitors were found.