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  1. No Access

    Article

    Synthesis of 3-acyl-5-nitroisoxazoles on the base of geminal trinitro- and chlorodinitro-substituted pentan-2-one or 2-oximino-1-phenylbutan-1-one

    3-Acyl-5-nitroisoxazoles were synthesized by heating 5,5,5-trinitropentan-2-one with LiCl in DMF at 100 °C as well as by heating oximino derivatives of 5,5,5-trinitro-, 5-chloro-5,5-dinitropentan-2-one or 4,4,...

    G. Kh. Khisamutdinov, N. M. Lyapin, V. G. Nikitin… in Russian Chemical Bulletin (2009)

  2. No Access

    Article

    Fluorination of 4-nitroisoxazoline salts. Synthesis of 4-fluoro-4-nitroisoxazolines and 4-fluoroisoxazoles

    Methods for the synthesis of hitherto unknown 4-fluoro-4-nitroisoxazolines by fluorination of 4-nitroisoxazoline salts with FClO3 in MeOH and 4-fluoroisoxazoles by treatment of fluoronitroisoxazolines bearing the...

    G. Kh. Khisamutdinov, L. V. Okhlobystina, A. A. Fainzil’berg in Russian Chemical Bulletin (2009)

  3. No Access

    Article

    Comparison of the Reactivity of R3+NF Fluorine Carriers as Highly Efficient Fluorinating Agents

    A. A. Fainzil'berg, V. I. Faustov in Russian Journal of Organic Chemistry (2001)

  4. No Access

    Article

    Reduction potential as a measure of activity of the N-F fluorinating agents

    The possibility of evaluating activity of fluorinating agents by their electrochemical characteristics is confirmed by the example ofN-fluorobenzenesulfoneimide (I), as well as l-chlormethyl-4-fluoro-l,4-diazoniu...

    G. P. Girina, A. A. Fainzil’berg, L. G. Feoktistov in Russian Journal of Electrochemistry (2000)

  5. No Access

    Article

    Crystal and molecular structure of 2,5-bis(fluorodinitromethyl)-1,3,4-oxadiazole

    An X-ray structural study of 2,5-bis(fluorodinitromethyl)-1,3,4-oxadiazole (1), one of the representatives of azoles with strong electron-withdrawing substituents, has been carried out. It has been found that ...

    A. S. Batsanov, Yu. T. Struchkov, A. A. Gakh… in Russian Chemical Bulletin (1994)

  6. No Access

    Article

    Gem-dinitro compounds in organic synthesis. 3. Syntheses of 4-nitro-1,2,3-triazoles from gem-dinitro compounds

    Several chemoselective syntheses have been developed for 4-nitro-1,2,3-triazoles from sodium azide and gem-dinitroethylenes prepared from readily available transformation products of dinitroacetic acid ester: ...

    A. T. Baryshnikov, V. I. Erashko… in Bulletin of the Russian Academy of Science… (1992)

  7. No Access

    Article

    N-fluorination of several nitrogen compounds by cesium fluoroxysulfate

    Cesium fluoroxysulfate (CFS) is a unique anionic electrophile, which may be used as a mild fluorinating agent in the synthesis of organofluorine compounds [1]. On the other hand, the feasibility of forming N-F...

    A. A. Gakh, S. V. Romaniko… in Bulletin of the Academy of Sciences of the… (1991)

  8. No Access

    Article

    gem-Dinitro compounds in organic synthesis. 1. Synthesis of functionally substituted polynitro compounds with the use of the universal synthon, ethyl dinitroacetate

    Ethyl nitroacetate (I) was used as a synthon in the preparation of dinitromethane, dinitroacetic acid, 2,2-dinitroethanol, fluorodinitromethane, 1,1,3,3-tetranitropropane, and some condensation products of Hen...

    A. L. Laikhter, T. I. Cherkasova… in Bulletin of the Academy of Sciences of the… (1991)

  9. No Access

    Article

    Fluorination of anionic σ-complexes by cesium fluoroxysulfate

    Anionic σ-complexes and related structures react with cesium fluoroxysulfate to give predominantly the C-fluoro derivatives: fluoronitrocyclohexadienes or substituted fluoronitrobenzenes. Oxidation or degradat...

    A. A. Gakh, S. V. Romaniko, B. I. Ugrak… in Bulletin of the Academy of Sciences of the… (1991)

  10. No Access

    Article

    Synthesis of C-Azolylacetic acid esters based on carbethoxyethylacetimidate

    Preparative methods were developed for synthesizing 1,2,4-triazolyl-1,3,4-oxadiazolyl-, 1,2,4-oxadiazolyl-, and 1,3,4-thiadiazolylacetic acid esters based on carbethoxyethylacetimidate chlorohydrate.

    V. V. Kiseleva, A. A. Gakh… in Bulletin of the Academy of Sciences of the… (1990)

  11. No Access

    Article

    Interphase analysis in the chemistry of aliphatic nitro compounds. 1. Alkylation of alkali metal salts of trinitromethane under interphase catalysis conditions in solid phase-liquid systems

    Methylation of trinitromethane salts was studied under interphase catalysis conditions in a solid phase (a trinitromethane salt)-liquid (methyl iodide) system in the presence of interphase transfer catalysts —.....

    S. A. Shevelev, L. I. Dalinger… in Bulletin of the Academy of Sciences of the… (1990)

  12. No Access

    Article

    Investigation of the alkylation of nitroazoles with α-haloketones by13C,15N, and14N NMR

    General methods have been worked out for the alkylation of nitroazoles with bromoacetone, bromoacetophenone, and diazoacetone in homogeneous media and by phase-transfer catalysis. The structures of the N-aceto...

    V. V. Semenov, B. I. Ugrak, S. A. Shevelev… in Bulletin of the Academy of Sciences of the… (1990)

  13. No Access

    Article

    Syntheses based on electrogenerated carbenes

    Dinitrocarbene generated in the electrochemical oxidation of dinitromethylides is inserted at C-H bonds of benzene, substituted benzenes, or cyclohexane, forming the corresponding dinitromethyl derivatives. In...

    M. E. Niyazymbetov, V. A. Petrosyan… in Bulletin of the Academy of Sciences of the… (1989)

  14. No Access

    Article

    Synthesis based on electrogenerated carbenes

    1. The MINDO/3 method has been used to calculate enthalpies in decomposition reactions of the dimethylsulfonium ...

    V. A. Petrosyan, A. A. Fainzil'berg… in Bulletin of the Academy of Sciences of the… (1989)

  15. No Access

    Article

    Synthesis based on electrogenerated carbenes. 3. Electrochemical oxidation of dinitromethylides as a route to generation of dinitrocarbene

    The electrochemical oxidation of S and Se dinitromethylides on a Pt anode in absolute MeCN is accompanied by the fragmentation of the molecule at the heteratom-ylide C atom bond with the proabable formation of...

    V. A. Petrosyan, M. E. Niyazymbetov… in Bulletin of the Academy of Sciences of the… (1989)

  16. No Access

    Article

    Nitropyrazoles (review)

    Data on preparation, properties, transformations, and application of pyrazoles containing a nitro group in the pyrazole ring are correlated.

    M. I. Kanishchev, N. V. Korneeva, S. A. Shevelev… in Chemistry of Heterocyclic Compounds (1988)

  17. No Access

    Article

    Fluorosulfation of the double bond: A new direction in the reactions of cesium fluoroxysulfate with olefins

    N. S. Zefirov, V. V. Zhdankin, A. A. Gakh… in Bulletin of the Academy of Sciences of the… (1987)

  18. No Access

    Article

    Electrochemical oxidation of nitroazole anions

    M. E. Niyazymbetov, V. A. Petrosyan… in Bulletin of the Academy of Sciences of the… (1987)

  19. No Access

    Article

    A method for the preparation of N-heterylpyrazoles from 4-nitropyrazole

    M. I. Kanishchev, V. Kral, Z. Arnold… in Bulletin of the Academy of Sciences of the… (1986)

  20. No Access

    Article

    Modification of the chemical properties of sulfur-, selenium-, and iodine-containing aliphatic compounds under the effect of nitro groups

    1. A number of new types of compounds were synthesized in which the heteroatom and nitro groups are on one C ato...

    A. A. Fainzil'berg, S. A. Shevelev… in Bulletin of the Academy of Sciences of the… (1984)

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