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  1. No Access

    Article

    Thermal decomposition of peroxide derivatives of polyfluorinatedβ-ketoesters

    The thermal flow microcalorimetric method was used to determine the kinetic parameters for the thermal decomposition of peroxide derivatives of polyfluorinatedβ-ketoesters and the decomposition products were esta...

    A. I. Rakhimov, V. V. Chapurkin… in Bulletin of the Academy of Sciences of the… (1990)

  2. No Access

    Article

    Intramolecular O−O...HCF2 interactions in peroxides

    V. V. Chapurkin, A. I. Rakhimov, N. K. Morozova… in Journal of Structural Chemistry (1991)

  3. No Access

    Article

    Synthesis of Perfluorinated Dioxo Esters from Dimethyl Perfluoroadipate

    O. S. Leont'eva, V. V. Chapurkin, A. V. Baklanov in Russian Journal of Organic Chemistry (2002)

  4. No Access

    Article

    Features of Reaction of Dialkyl Perfluoroadipic and Perfluoropimelic Acids with Alkyl(Aryl) Methyl Ketones

    Reaction of dialkyl esters of perfluoroadipic and perfluoropimelic acids with ketones form diketo esters. The possibility of cyclization of the products is discussed.

    V. V. Chapurkin, A. O. Litinskii, A. V. Baklanov… in Russian Journal of General Chemistry (2005)

  5. No Access

    Article

    Reaction of Perfluorocarbonyl Chlorides with Ethyl- and Phenylmagnesium Bromides

    The structure of the products formed by the reactions of perfluoroadipoyl and perfluorocyclo-hexanedicarbonyl difluorides with ethyl- and phenylmagnesium bromides depends on the nature of the radical in the or...

    V. V. Chapurkin, A. O. Litinskii, O. S. Leont’eva… in Russian Journal of General Chemistry (2005)

  6. No Access

    Article

    Synthesis and features of thermolysis of fluorine-containing aromatic 1-hydroxy-1-hydroperoxides and 1,1′-dihydroperoxides

    Aromatic fluorine-containing 1-hydroxy-1-hydroperoxides and 1,1′-dihydroxyperoxides were obtained and their thermolysis features were studied. The fluorine atoms incorporation into the aromatic ring of 1-hydro...

    V. V. Chapurkin, A. I. Rakhimov, S. V. Chapurkin in Russian Journal of General Chemistry (2009)

  7. No Access

    Article

    Features of claisen condensation of dimethyl perfluorododecanedicarboxylate

    V. V. Chapurkin, A. I. Rakhimov, S. V. Chapurkin in Russian Journal of General Chemistry (2011)

  8. No Access

    Article

    Dynamics of molecules excited by infrared laser radiation

    The CF2HCl and CF2Cl2 molecules upon multiphoton excitation are investigated by the method of Raman light scattering spectroscopy at frequencies of fundamental transitions. It is demonstrated that essentially non...

    Yu. S. Doljikov, V. V. Chapurkin, S. V. Chapurkin in Russian Physics Journal (2011)

  9. No Access

    Article

    Investigation of multiphoton-excited molecules by the method of Raman scattering spectroscopy at an overtone and compound vibrational frequencies

    The multiphoton-excited CF3Br molecules are investigated by the method of Raman light scattering spectroscopy at frequencies of overtones and compound vibrations. It is demonstrated that highly nonequilibrium ene...

    Yu. S. Doljikov, V. V. Chapurkin, S. V. Chapurkin in Russian Physics Journal (2012)

  10. No Access

    Article

    Polyurethane elastomers based on oligobutadienediol NISSO PB G3000

    The hardening possibility of the new oligobutadienediol was studied. The influence of the ratio between the isocyanate and hydroxyl groups and the amount of glycerol on the mechanical properties, the degree of...

    V. P. Medvedev, S. I. Ukrainskaya, V. V. Chapurkin… in Polymer Science Series D (2013)

  11. No Access

    Article

    Vulcanization of fluoroelastomers using fluorine peroxides

    Fluorinated peroxide compounds are used as effective curing and modifying for commercial fluoroelastomers. It is shown that the use of fluorinated peroxide derivatives of poly- and perfluorocaronyl compounds a...

    V. V. Chapurkin, V. P. Medvedev, S. V. Chapurkin in Russian Journal of Applied Chemistry (2015)

  12. No Access

    Article

    Properties of Polyurethanes Prepared by Structuring Oligodienediols at Double Bonds and Hydroxyl Groups

    The curing of oligodienediol with a combined system consisting of a polyisocyanate and a (meth)acrylate-containing compound, which allows it to be structured with the polyisocyanate both at the terminal hydrox...

    V. P. Medvedev, V. V. Chapurkin, A. V. Murzin, M. A. Vaniev… in Polymer Science, Series D (2018)

  13. No Access

    Article

    Some Features of the Tscherniac‒Einhorn Reaction with 2-Thiouracil Derivatives

    The Tscherniac–Einhorn reaction of 6-methyl and 6-(trifluoromethyl) derivatives of 2-thiouracil with N-(bromomethyl)phthalimide in under basic catalysis leads to the formation of S-amidomethylation products. When...

    I. A. Novakov, D. S. Sheikin, V. V. Chapurkin… in Russian Journal of General Chemistry (2020)

  14. No Access

    Article

    Synthesis of Peroxides Based on Polyfluorated Polycarbonyl Compounds

    The reactions of polyfluorinated di- and tetracarbonyl compounds with tert-butyl hydroperoxide proceeds at one or several carbonyl groups, depending on the ketone structure. The resulting peroxides are of interes...

    V. V. Chapurkin, A. I. Rakhimov, M. A. Vaniev… in Russian Journal of General Chemistry (2020)

  15. No Access

    Article

    Specific features of amidoalkylation of 6-hydroxy-5-isopropyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one

    During the synthesis of new structural analogs of isothiobarbamine, the amidoalkylation of 6-hydroxy-5-isopropyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one was found to give a mixture of mono-, di-, and trisubstitut...

    I. A. Novakov, D. S. Sheikin, V. V. Chapurkin, M. B. Nawrozkij… in Russian Chemical Bulletin (2020)

  16. No Access

    Article

    Regiospecific S-aminoalkylation of 5-substituted 6-hydroxy-2-thiouracil derivatives in the synthesis of structural analogs of isothiobarbamine

    Regiospecific S-monoaminoalkylation of 5-substituted derivatives of 6-hydroxy-2-thiouracil with free N,N-dialkyl-N-(2-chloroethyl)amines in anhydrous PriOH was described for the first time. In compliance with the...

    I. A. Novakov, D. S. Sheikin, V. V. Chapurkin, M. B. Nawrozkij… in Russian Chemical Bulletin (2021)

  17. No Access

    Article

    Synthesis and biological properties of novel structural analogs of isothiobarbamine

    Novel structural analogs of isothiobarbamine, which differ from the prototype scaffold by the substituent at position 2 of the pyrimidine heterocycle, were for the first time synthesized and characterized. Dat...

    I. A. Novakov, D. S. Sheikin, E. A. Ruchko, L. L. Brunilina… in Russian Chemical Bulletin (2021)

  18. No Access

    Article

    Use of Fluoroperoxides Derived from Polyfluorinated Di- and Tetracarbonyl Compounds for Vulcanization of Fluoroelastomers

    The possibility of using fluoroperoxides derived from polyfluorinated di- and tetracarbonyl compounds as vulcanizing agents for SKF-32 and SKF-260 fluororubbers was examined. The vulcanizates obtained are char...

    V. V. Chapurkin, M. A. Vaniev, S. V. Chapurkin… in Russian Journal of Applied Chemistry (2022)