Центральная Научная Библиотека УрО РАН

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    1,2,4-Triazino[5,6,1-i,j]quinolines: a new type of tricyclic analogs of fluoroquinolones [Electronic resource] / G. N. Lipunova, E. V. Nosova, N. N. Mochul`skaya, A. A. Andreiko, O. M. Chasovskikh, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2002. - Vol. 51, № 4. - P663-667

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The interaction of C-aryl-substituted amidrazones and S-methylisothiosemicarbazide with 3-ethoxy-2-polyfluorobenzoylacrylates results in corresponding N-(quinolin-1-yl)amidines that undergo conversion into derivatives of 1,2,4-triazino[5,6,1-i,j]quinoline by heating in acetic anhydride

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2002, 51 (4), 663.pdf
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   L 79

    Lipunova, G. N.
    Metallocomplexes of fluoroquinolonecarboxylic acids [Electronic resource] / G. N. Lipunova, E. V. Nosova, V. N. Charushin // Russian Journal of General Chemistry. - 2009. - Vol. 79, № 12. - P2753-2766

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The survey reviews the data on the synthesis, structure and biological activity of fluoroquinolonecarboxylic acids metal chelates. The influence of metal and ligand nature as well as conditions of the synthesis on the polyhedron type is discussed. The data on interaction between fluoroquinolone metal complexes and DNA are explored

\\\\Expert2\\nbo\\Russian Journal of General Chemistry\\2009, V. 79, N 12, p.2753.pdf
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   C 45


    Changes in the vibrational characteristics of substituted 1,2,4,5-tetrazines after complexation with 1,2,3-benzotriazole: A theoretical study [Electronic resource] / N. N. Ivshina, E. V. Bartashevich, V. A. Potemkin, M. A. Grishina, R. I. Ishmetova, G. L. Rusinov, N. I. Latosh, P. A. Slepukhin, V. N. Charushin // Journal of Structural Chemistry. - 2009. - Vol. 50, № 6. - P1053-1058

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The complexation of 3,6-substituted 1,2,4,5-tetrazines with benzotriazole was studied theoretically based on the vibrational spectra. For model complexes, the energy was minimized by the geometrical parameters, and the spectral characteristics were calculated by the PM3 method. The shift of the bond vibration frequencies of the atoms involved in complexation after the formation of different various intermolecular contacts was determined. This made it possible to determine the type of intermolecular interaction and suggest the structures of the complexes

\\\\Expert2\\nbo\\Journal of Structural Chemistry\\2009, V. 50, N 6, p.1053.pdf
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   T 34


    Temperature-dependent zero-field splitting in a copper(ii) dimer studied by EPR [Электронный ресурс] / M. Fedin, E. F. Zhilina, D. L. Chizhov, V. N. Charushin // Dalton Transactions. - 2013. - Vol. 42, №13. - P4513-4521

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
MAGNETOSTRUCTURAL CORRELATIONS -- TEMPERATURE DEPENDENT -- MAGNETIC SUSCEPTIBILITY
Аннотация: We report on the synthesis and temperature-dependent magnetic properties observed in an exchange-coupled copper(ii) dimer using X/Q-band Electron Paramagnetic Resonance (EPR) spectroscopy (9/34 GHz). It has been found that the zero-field splitting (D) in the dimer changes gradually by a factor close to two in the temperature range from T = 50 to 300 K. X-ray diffraction data show that this dimer consists of two five-coordinated copper ions, one of which has a highly asymmetric geometry intermediate between square pyramid and trigonal bipyramid. The copper-copper distance in the dimer is temperature-independent, whereas the degree of trigonality in an asymmetric unit decreases as the temperature is lowered. Therefore we suppose that the observed dependence D(T) originates from the interplay of different exchange interaction pathways driven by these thermal changes. Magnetic susceptibility measurements reveal weak ferromagnetic interactions, whose anisotropic parts should indeed be very sensitive to the subtle changes in the geometry and may result in apparent D(T). Apart from being a very unusual example of magneto-structural correlations, this and similar dimeric systems can be considered as an interesting type of new materials exhibiting strongly temperature-dependent magnetic p

\\\\expert2\\nbo\\Dalton Transactions\\2013, v.42, p.4513.pdf
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   S 89


    Structures of the racemate and (S)-enantiomer of 7,8-difluoro-3-methyl-2,3-dihydro-4H-[1,4]benzoxazine [Electronic resource] / P. A. Slepukhin, D. A. Gruzdev, E. N. Chulakov, G. L. Levit, V. P. Krasnov, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 955-960. - Bibliogr. : p. 960 (17 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ENANTIOMERS -- RACEMATES -- ORGANOFLUORINE COMPOUNDS
Аннотация: The comparative X ray diffraction study of racemic and (S) enantiomer of 7,8 difluoro 3 methyl 2,3 dihydro 4H [1,4]benzoxazine was carried out. The both forms of benzoxazine are crystallized in the orthorhombic crystal system, the (S) enantiomer is crystallized in the chiral space group P212121, while the racemate is crystallized in the centrosymmetric Pbca space group. The bond lengths and bond and torsional angles in the both molecules are almost equal. The packing of the racemate is characterized by a closer interaction of polar NH...О groups.

\\\\expert2\\NBO\\Russian Chemical Bulletin\\2011, 60 (5), 955-960.pdf
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   A 10


    A Convenient Approach to CF3-Containing N-Heterocycles Based on 2-Methoxy-2-methyl-5-(trifluoromethyl)furan-3(2H)-one [Electronic resource] / D. N. Bazhin, Yu. S. Kudyakova, G. -V. Roeschenthaler, Ya. V. Burgart, P. A. Slepukhin, M. L. Isenov, V. I. Saloutin, V. N. Charushin // European Journal of Organic Chemistry. - 2015. - № 23. - С. 5236-5245. - Bibliogr. : p. 5245 (23 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NITROGEN HETEROCYCLES -- FLUORINE -- OXYGEN HETEROCYCLES
Аннотация: New synthetic routes to trifluoromethylated N-heterocycles based on condensations of 2-methoxy-2-methyl-5-(trifluoromethyl)furan-3(2H)-one with bifunctional N-nucleophiles are described. For the first time, trifluoromethyl-containing pyrazoles, pyrazolines and isoxazolines bearing hydrazone or oxime groups could be obtained by a one-pot strategy based on reactions of 5-(trifluoromethyl)furan-3(2H)-one with two equivalents of the corresponding hydrazines or hydroxylamine in the presence of an acid. The interaction of furan-3(2H)-one with ureas proceeded under mild conditions to furnish 1H-furo[2,3-d]imidazol-2(3H)-one derivatives in good yield. Further, a trifluoromethyl-containing quinoxaline derivative was obtained by condensation of furan-3(2H)-one with ortho-phenylenediamine.

\\\\expert2\\nbo\\European Journal of Organic Chemistry\\2015, №23. p.5236-5245.pdf
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   S 98


    Synthesis of podands with dihydropyrimidine fragments based on polyethers with terminal acetoacetamide groups [Electronic resource] / E. S. Radionava, O. V. Fedorova, Yu. A. Titova, G. L. Rusinov, V. N. Charushin // Chemistry of Heterocyclic Compounds. - 2015. - Vol. 51, № 5. - С. 478-482. - Bibliogr. : p. 482 (19 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ACETOACETAMIDE-CONTAINING PODANDS -- DIHYDROPYRIMIDINE-CONTAINING PODANDS -- ACETYLKETENE
Аннотация: Reactions of aliphatic aminopodands having different length of the polyether chain with acetoacetic ester and 2,2,6-trimethyl-4H-1,3-dioxin-4-one were studied. The interaction of aminopodands with acetoacetic ester in toluene upon sonication (60A degrees D) or heating (90A degrees D) gave podands with terminal aminocrotonate fragments. The use of dioxinone at the same temperature allowed to transform aminopodands into aliphatic acetoacetamide-containing podands. An asymmetric podand with 2-pyridone fragment was isolated as byproduct from the reaction of dioxinone with 1,5-diamino-3-oxapentane. A three-component Biginelli reaction of acetoacetamidecontaining podands with benzaldehyde and urea in the presence of catalytic amounts of polyphosphoric acid immobilized on nanosized TiO2-SiO2 oxide surface enabled the synthesis of podands with 1,4-dihydropyrimidin-2-(1De)-one fragments.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\2015, v.51, N 5, p. 478-482.pdf
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   R 74


    Role of polar solvents for the synthesis of pillar[6]arenes [Electronic resource] / S. Santra, I. S. Kovalev, D. S. Kopchuk, G. V. Zyryanov, A. Majee, V. N. Charushin, O. N. Chupakhin // RSC Advances. - 2015. - Vol. 5, № 126. - С. 104278-104282. - Bibliogr. : p. 104282 (26 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
HOST-GUEST COMPLEXATION -- WATER CHANNELS -- HIGH-YIELD SYNTHESIS
Аннотация: An efficient procedure for the synthesis of pillar[6]arenes has been developed. The procedure involves the condensation of 1,4-dialkoxybenzenes and paraformaldehyde in the presence of a catalytic amount of H2SO4 or BF3 center dot OEt2 in polar solvent media (acetonitrile, ethyl alcohol, acetone etc.). In all cases the interaction afforded pillar[6]arenes in high yields.

\\\\expert2\\nbo\\RSC Advances\\2015. Vol. 5, N 126. P. 104278-104282.pdf
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   E 97


    Extended cavity pyrene-based iptycenes for the turn-off fluorescence detection of RDX and common nitroaromatic explosives / A. F. Khasanov [et al.] // New Journal of Chemistry. - 2017. - Vol. 41, № 6. - P2309-2320

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PYRENE (CHEMICAL) -- FLUORESCENCE -- RDX (CYCLONITE)
Аннотация: Extended cavity pyrene-based iptycenes have been synthesized by using the Diels–Alder reaction between in situ generated dehydropyrenes and anthracene. The photophysical properties and the interaction of these iptycenes with nitro-explosive components were studied both in solution and in the solid state by using fluorescence spectroscopy and X-ray crystallography, respectively. Due to the presence of both the large iptycene cavity and the central pyrene core, an unprecedently high fluorescence-quenching response towards non-aromatic and non-planar 1,3,5-trinitroperhydro-1,3,5-triazine (RDX) has been observed both in solution (with an apparent Stern–Volmer constant value aKSV up to 1.53 × 103 M−1) and in the vapor phase (50–75% fluorescence quenching of the PU films doped with chemosensors). In the case of nitroaromatic explosives, nitrobenzene (NB), 2,4-DNT, TNT, and 2,4,6-trinitrophenol (TNP or picric acid, PA), pyrene-based iptycenes also demonstrate a good fluorescence-quenching response both in solutions (with apparent Stern–Volmer constant values aKSV = 0.4–8.0 × 103 M−1) and in the vapor phase (up to 90% fluorescence quenching of the PU films doped with chemosensors). The “sphere of action” fluorescence quenching model was suggested.

\\\\Expert2\\NBO\\New Journal of Chemistry\\2017 v.41 p.2309-2320.pdf
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