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1.
Badovskaya L. A. Poskonin V. V. Tyukhteneva Z. I. Kozhina N. D. 《Russian Journal of General Chemistry》2021,91(2):133-153
Russian Journal of General Chemistry - This review summarizes the data on 2(5H)-furanone, 5-hydroxy-2(5H)-furanone, and some substituted hydrofuranones with respect to their poorly studied or... 相似文献
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P. G. Nikonorov S. P. Mushtakova N. A. Burmistrova L. F. Kozhina 《Journal of Analytical Chemistry》2004,59(2):141-145
The catalytic activity of rhodium(III) was studied in the reaction of the oxidation of triphenylamine-4-sulfonic acid by sodium periodate at pH 3. The dependence of the reaction rate on the technique of catalyst preparation, the presence of activators, the concentrations of the components, and the acidity and temperature of solutions was revealed. A sensitive and selective method for the catalymetric determination of rhodium(III) is proposed and tested with synthetic mixtures. 相似文献
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G. D. Krapivin N. D. Kozhina L. A. Chernousenko V. E. Zavodnik 《Chemistry of Heterocyclic Compounds》1999,35(1):23-32
The reaction of 2(5H)-furanone with the Vilsmeier-Haak-Arnold reagent and subsequent addition of concentrated aqueous HClO4 to the reaction mixture give (3-dimethylaminomethylen-2-oxo-3H-5-furanyl)methylenimmonium perchlorate, whose hydrolysis under various conditions leads to 3-dimethylaminomethylene-5-formyl-2(3H)-furanone or to the potassium salt of 5-hydroxy-2,4-furandicarbaldehyde. The reaction of these products with CH-acids was studied. The structures of the key compounds of this work have been proved by the method of X-ray diffraction analysis.Kuban State Technological University. 350072 Krasnodar, Russia; email:gemm18803@yahoo.com. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 24–34, January, 1999. 相似文献
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G. A. Kozhina A. N. Ermakov V. B. Fetisov A. V. Fetisov K. Yu. Shunyaev 《Russian Journal of Electrochemistry》2009,45(10):1170-1175
The cyclic voltammetry method was used to study the regularities of the electrochemical behavior of cobalt cobaltite in an
acidic medium. It is shown that cathodic reduction of Co3O4 in the studied range of potentials of +1.0 to −0.8 V is a multistage process occurring according to the scheme:
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A. P. Gumenyuk S. P. Mushtakova D. M. Vadeneev L. F. Kozhina 《Journal of Analytical Chemistry》2004,59(2):146-149
Reversed-phase thin-layer chromatography plates can be effectively used for the separation of metal ions in low concentrations by classical low-voltage electrophoresis. Electropherograms of the ionic composition of hydrochloric and perchloric acid solutions of rhodium(III) and iridium(IV) were obtained. These electropherograms are comparable with the results of capillary electrophoresis. Special features of electrophoresis on reversed-phase plates were noted. 相似文献
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