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1.
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    Synthesis and photophysical properties of pyridyl- and quinolinyl-substituted bis(arylthienyl)pyridines / T. N. Moshkina, E. V. Nosova, A. E. Kopotilova [et al.] // Journal of photochemistry and photobiology A: Chemistry. - 2022. - Vol. 427. - Ст. 113805
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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2.
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    (A)symmetric chromophores based on cyano and fluorine-substituted 2,3-bis(5-arylthiophen-2-yl)quinoxalines: Synthesis, photophysical properties and application prospects / T. N. Moshkina, E. V. Nosova, A. E. Kopotilova [et al.] // Dyes and Pigments. - 2022. - Vol. 204. - Ст. 110434
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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3.
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    Synthesis and photophysical properties of pyridyl- and quinolinyl-substituted 4-(4-aminophenyl)quinazolines / T. N. Moshkina, E. V. Nosova, A. E. Kopotilova [et al.] // Journal of photochemistry and photobiology A: Chemistry. - 2022. - Vol. 429. - Ст. 113917
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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4.
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    Oximes of fluoroalkyl-containing 1,3-diketones: specific features of synthesis, analysis, and thermal stability / N. S. Boltacheva, P. A. Slepukhin, M. G. Pervova [et al.] // Russian chemical bulletin. - 2022. - Vol. 71, № 4. - P1464-1473
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Nitrosation of lithium 1,3-diketonates bearing fluoroalkyl and aryl (or hetaryl) substituents in positions 1 and 3 results in 3-polyfluoroalkyl-1,2,3-propanetrione 2-oximes (from this point on, oximes). Under similar conditions, lithium (Z)-1,1,1-trifluoro-4-oxo-4-(thien-2-yl)-2-buten-2-olate forms a hydration product of the corresponding oxime. Nitrosation of fluoroalkyl-containing lithium 1,3-diketonates is accompanied by retro-decomposition of the initial lithium 1,3-diketonates and the target oximes (or their hydration products) followed by oxidation and hydrolysis of the reaction products. Under the GC-MS conditions, the oximes undergo partial thermal decomposition to 2-aryl(hetaryl)-2-oxoethanenitriles. An analysis of solutions of the oximes in DMSO-d6 by 1H and 19F NMR spectroscopies revealed isomerization and hydration of these compounds. The temperature ranges of stability of the oximes were determined by thermogravimetric analysis and differential thermal analysis. The molecular and crystal structures of 4,4-difluoro-1-(4-methoxyphenyl)-1,2,3-butanetrione 2-oxime and 4,4,4-trifluoro-1-(thien-2-yl)-1,2,3-butanetrione 2-oxime were determined by X-ray diffraction.

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5.
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    Oximes of fluoroalkyl-containing 1,3-diketones: specific features of synthesis, analysis, and thermal stability / N. S. Boltacheva, P. A. Slepukhin, M. G. Pervova [et al.] // Russian chemical bulletin. - 2022. - Vol. 71, № 7. - P1464-1473
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Nitrosation of lithium 1,3-diketonates bearing fluoroalkyl and aryl (or hetaryl) substituents in positions 1 and 3 results in 3-polyfluoroalkyl-1,2,3-propanetrione 2-oximes (from this point on, oximes). Under similar conditions, lithium (Z)-1,1,1-trifluoro-4-oxo-4-(thien-2-yl)-2-buten-2-olate forms a hydration product of the corresponding oxime. Nitrosation of fluoroalkyl-containing lithium 1,3-diketonates is accompanied by retro-decomposition of the initial lithium 1,3-diketonates and the target oximes (or their hydration products) followed by oxidation and hydrolysis of the reaction products. Under the GC-MS conditions, the oximes undergo partial thermal decomposition to 2-aryl(hetaryl)-2-oxoethanenitriles. An analysis of solutions of the oximes in DMSO-d6 by 1H and 19F NMR spectroscopies revealed isomerization and hydration of these compounds. The temperature ranges of stability of the oximes were determined by thermogravimetric analysis and differential thermal analysis. The molecular and crystal structures of 4,4-difluoro-1-(4-methoxyphenyl)-1,2,3-butanetrione 2-oxime and 4,4,4-trifluoro-1-(thien-2-yl)-1,2,3-butanetrione 2-oxime were determined by X-ray diffraction.

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6.
Инвентарный номер: нет.
   

   
    2-Aminooxazoles as novel dienophiles in the inverse demand Diels–Alder reaction with 1,2,4-triazines / A. P. Krinochkin, G. Mallikarjuna Reddy, D. S. Kopchuk [et al.] // Mendeleev Communications. - 2021. - Vol. 31, № 4. - P542-544
ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,4-TRIAZINES -- OXAZOL-2-AMINES -- DIELS–ALDER REACTION -- 2,2'-BIPYRIDIN-3-OLS
Аннотация: High temperature coupling of 6-aryl-5-cyano-3-(pyridin-2-yl)-1,2,4-triazines with 2-amino-4-aryloxazoles proceeds as the inverse demand Diels–Alder reaction between the oxazole moiety as dienophile and the 1,2,4-triazine moiety as diene to construct new 4,5-diaryl-6-cyano-3-hydroxypyridin-2-yl fragment. A reaction mechanism is proposed, and the structure of the key-product is proved by the X-ray diffraction analysis.

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7.
Инвентарный номер: нет.
   
   T 44

   
    The Rh(III)-catalysed C-H/N-H annulation of 2-thienyl- and 2-phenyl-quinazolin-4(3: H)-ones with diphenylacetylene / T. N. Moshkina, E. V. Nosova, G. N. Lipunova [et al.] // New Journal of Chemistry. - 2021. - Vol. 45, № 19. - P8456-8466
ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A series of 4,5-diphenyl-7H-thieno[2′,3′:3,4]pyrido[2,1-b]quinazolin-7-ones was synthesized via the Rh(III)-catalyzed annulation of 2-thienylquinazolin-4(3H)-ones with diphenylacetylene. 2-Phenylquinazolin-4(3H)-one amide alcoholysis and double C–H functionalization proceeded under the same reaction conditions with the formation of 2,3,7,8-tetraphenyl-1H-benzo[d,e][1,8]-naphthyridine derivatives. All compounds possess fluorescence properties in MeCN and toluene solutions as well as in the solid state. The aggregation induced emission (AIE) properties and the ability to detect Fe3+ cations were evaluated.

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8.
Инвентарный номер: нет.
   

   
    Single-crystal x-ray diffraction studies in a series of 5-pentafluorophenyl-2,2'-bipyridines and their fused analogs / M. V. Varaksin, E. S. Starnovskaya, D. S. Kopchuk [и др.] // Russian journal of general chemistry. - 2020. - Т. 90, № 2. - P235-237
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
6-ARYL-5-PENTAflUOROPHENYL-2,2'-BIPYRIDINES -- LIGANDS -- SINGLE-CRYSTAL X-RAY DIFFRACTION ANALYSIS -- STRUCTURAL EFFECT
Аннотация: Structure of three 6-aryl-5-pentafluorophenyl-2,2'-bipyridines has been studied by means of single-crystal X-ray diffraction analysis. The effect of some functional fragments on the structural organization of compounds, in particular, donor and acceptor substituents in the aryl moiety, as well as annulated benzene and cyclopentane rings on the molecular structure and crystal packing of pentafluorophenyl-modified 2,2'-bipyridine ligand systems has been analyzed.

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9.
Инвентарный номер: нет.
   

   
    Aryne-mediated transformations of 5-perfluorophenyl-substituted 3-(pyridin-2-yl)-1,2,4-triazines in the design of novel 10-(1h-1,2,3-triazol-1-yl)pyrido[1,2-a]indole fluorophores / T. D. Moseev, M. V. Varaksin, I. A. Lavrinchenko [и др.] // Tetrahedron. - 2020. - Vol. 76, № 18. - P131147
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,3-TRIAZOLES -- ARYNE-MEDIATED TRANSFORMATIONS -- CAOSAMBHWGMFEW-UHFFFAOYSA-N -- CYFQLMLVDSTHGC-UHFFFAOYSA-N -- FLUOROARENES
Аннотация: A number of novel fluorinated derivatives of the family of pyrido[1,2-a]indole fluorophores have first been synthesized via the aryne-mediated domino transformations of 5-(perfluorophenyl)-3-(pyridin-2-yl)-1,2,4-triazines. A comprehensive study of photophysical properties of the obtained polyfluoroaryl substituted derivatives, in which polyfluoroaryl, 1,2,3-triazole, and pyridoindole subunits contribute to a joint chromophore system, has shown that these compounds proved to exhibit a fluoresce with green light in acetonitrile solutions.

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10.
Инвентарный номер: нет.
   

   
    Dibenzo[ f,h]furazano[3,4- b]quinoxalines: synthesis by intramolecular cyclization through direct transition metal-free c-h functionalization and electrochemical, photophysical, and charge mobility characterization / Y. A. Kvashnin, E. V. Verbitskiy, P. A. Slepukhin [et al.] // ACS omega. - 2020. - Vol. 5, № 14. - P8200-8210
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Herein, we describe the synthesis of unsymmetrically substituted dibenzo[f,h]furazano[3,4-b]quinoxalines by intramolecular cyclization through direct transition metal-free C-H functionalization. The electrochemical and photophysical properties for several polycycles have been measured. In thin films of the dibenzo[f,h]furazano[3,4-b]quinoxalines, hole mobility is in the order of 10-4 cm2 V-1 s-1. The results show that the HOMO and LUMO energy levels are appropriate for using the compounds as hole-transport materials in thin-film devices, in particular, organic and perovskite solar cells.

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11.
Инвентарный номер: нет.
   

   
    Synthesis and photophysical studies of novel v-shaped 2,3-bis{5-aryl-2-thienyl}(dibenzo[f,h])quinoxalines / T. N. Moshkina, E. V. Nosova, A. E. Kopotilova [et al.] // Asian journal of organic chemistry. - 2020. - Vol. 9, № 4. - P673-681
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CROSS-COUPLING -- DIBENZO[F,H]QUINOXALINE -- DONOR-ACCEPTOR-DONOR CHROMOPHORES -- FLUORESCENCE -- SENSORS
Аннотация: A series of novel V-shaped luminophores containing electron-withdrawing dibenzo[f,h]quinoxaline core and arylthienyl donor fragments at positions 2 and 3 has been synthesized. The absorption spectra (UV/vis) were recorded in several solvents, whereas emission spectra were recorded in solutions and powders. The solvatochromism as well as halochromism of obtained compounds was also explored. Electronic-structure calculations using quantum-chemistry methods were performed to further analyse experimental results. All characteristics were compared with that of 2,3-bis(arylthienyl)quinoxaline counterparts. The halochromic effect studies showed that upon gradual addition of trifluoroacetic acid (TFA) to the toluene solution of diethylaminophenyl-substituted dibenzo[f,h]quinoxaline chromophore, absorption and emission changed. Observed band shifts were more distinct in the case of mentioned quinoxaline than for other derivatives. All of the (dibenzo[f,h])quinoxaline chromophores exhibited good sensitivity toward nitro-containing explosives with high Stern-Volmer constants up to 57800 M−1, these results are remarkable for such heterocyclic systems.

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12.
Инвентарный номер: нет.
   
   T 82

   
    Transition metal-free regioselective cross-coupling of azine N-oxides with cymantrenyl lithium / A. A Musikhina, A. V. Kostromina, E. Y. Zyryanova, I. A. Utepova, O. N. Chupakhin, V. N. Charushin, P. A. Slepukhin // Современные синтетические методологии для создания лекарственных препаратов и функциональных материалов (MOSM2018): вторая международная научно-практическая конференция : материалы и доклады. - Екатеринбург, 2019. - С. 147
ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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13.
Инвентарный номер: нет.
   

   
    Synthesis and photophysical studies of novel 2-[5-(4-diethylaminophenyl)thiophen-2-yl]quinazoline derivatives / E. V. Nosova, T. N. Moshkina, D. S. Kopchuk, V. N. Charushin, G. N. Lipunova, I. V. Baklanova , P. A. Slepukhin // Mendeleev communications. - 2018. - Vol. 28, № 1. - С. 14-16
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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14.
Инвентарный номер: нет.
   
   T 82

   
    Transition metal-free regioselective cross-coupling of azine N-oxides with cymantrenyl lithium / A. A. Musikhina, I. A. Utepova, O. N. Chupakhin, V. N. Charushin, P. A. Slepukhin // Journal of organometallic chemistry. - 2018. - Vol. 870 . - P32-37
ББК 24
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
AZINE-N-OXIDES -- CYMANTRENE -- C-C COUPLING -- NUCLEOPHILE
Аннотация: The facile C–C coupling reaction of activated forms of azaaromatics (azine-N-oxides) with cymantrenyl lithium, as a nucleophile, has first been carried out. It has been established that aromatization of intermediate adducts can be realized through either oxidative or eliminative pathways, depending on the structure of the starting azine N-oxide. In particular, the dihydroazinyl intermediates, bearing the additional N(4)-atom relative to the N-oxide group, proved to undergo aromatization through the eliminative pathway. The X-ray studies of 3,6-diphenyl-1,2,4-triazine-5-yl-cymantrene have revealed that it is crystallized in both orthorhombic and monoclinic forms.

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15.
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    Step by step and one-pot syntheses of 5-hydroxy-5-(polyfluoroalkyl)isoxazol-4(5h)-one oximes / N. V. Palysaeva, A. B. Sheremetev, N. S. Boltacheva, P. A. Slepukhin, M. G. Pervova, V. I. Filyakova, V. N. Charushin // Mendeleev Communications. - 2018. - Vol. 28, № 1. - P126-127
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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16.
Инвентарный номер: нет.
   

   
    Synthesis and photophysical studies of novel 4-aryl substituted 2-phenyl-, 2-(fluoren-2-yl)- and 2-cymantrenylquinazolines / E. V. Nosova, T. N. Moshkina, V. N. Charushin, G. N. Lipunova, P. A. Slepukhin, I. V. Baklanova, E. S. Kelbysheva, N. M. Loim // Mendeleev Communications. - 2018. - Vol. 28, № 1. - P33-35
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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17.
Инвентарный номер: нет.
   
   N 52

   
    New derivatives of fluorine-containing phenazines / T. I. Filyakova, V. I. Filyakova, A. Ya. Zapevalov, M. I. Kodess, P. A. Slepukhin, V. I. Saloutin, V. N. Charushin // Mendeleev Communications. - 2017. - Vol. 27. - P290-292
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 1,2-Epoxyperfluorocyclohexane reacts with 3,3’,4,4’-tetraaminobiphenyl (1 : 1 mol / mol) to give 4-(6,6,7,7,8,8,9,9-octafluoro- 6,7,8,9-tetrahydrophenazin-2-yl)benzene-1,2-diamine whose structure was determined by X-ray crystallography. Reactions of the latter with 1,2-epoxyperfluorocyclohexane or benzil bring about new fluorinated phenazine derivatives.

\\\\Expert2\\NBO\\Mendeleev Communications\\2017 v.27 p.290-292.pdf
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18.
Инвентарный номер: нет.
   
   U 52

   
    Unexpected formation of diethyl 2-ethoxy-6-CF.sub.3-2H-pyran-3,5-dicarboxylate from the condensation of ethyl 4,4,4-trifluoroacetoacetate with CH(OEt).sub.3 / Y. S. Kudyakova, D. N. Bazhin, P. A. Slepukhin, Ya. V. Burgart, V. I. Saloutin, V. N. Charushin // Tetrahedron Letters. - 2017. - Vol. 58, № 8. - P744-747
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PYRAN -- DETRIFLUOROACETYLATION -- ETHYL TRIFLUOROACETOACETATE -- CONDENSATION -- PYRIDINES
Аннотация: The one-step preparation of diethyl 2-ethoxy-6-CF3-2H-pyran-3,5-dicarboxylate via the condensation of ethyl 4,4,4-trifluoroacetoacetate with CH(OEt)3 has been reported and a plausible mechanism for this transformation is discussed. To demonstrate the synthetic potential of the obtained pyran, the reactions with ammonia and aromatic amines to give trifluoromethylated pyridine derivatives are presented.

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19.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis of podands modified with thiosemicarbazide and fluoroalkyl(hydroxy)pyrazoline fragments / V. I. Filyakova, P. A. Slepukhin, N. S. Boltacheva, E. B. Letova, V. N. Charushin // Russian Journal of General Chemistry. - 2017. - Vol. 87, № 5. - P957-962
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PODANDES -- X-RAY DIFFRACTION ANALYSIS -- ACETIC ACID -- ORGANIC ACIDS
Аннотация: 1,8-Bis(diisothiosemicarbazido)-3,6-dioxaoctane have been synthesized by subsequent treatment of 2,2 -(ethylenedioxy)bisethylamine with carbon disulfide, sodium chloroacetate, and hydrazine hydrate. 1,8-Bis- (diisothiosemicarbazido)-3,6-dioxaoctane has reacted with lithium 1,1-difluoropenta-2,4-dionate in glacial acetic acid to yield 1,8-bis[5R*,5 R*(5-hydroxy-5-difluoromethyl-4,5-dihydro-3-methyl-1H-pyrazol-1-yl)-1-carbothioamido]-3,6-dioxaoctane. The molecular and crystal structure of the product has been determined by X-ray diffraction analysis.

\\\\Expert2\\NBO\\Russian Journal of General Chemistry\\2017 V 87 P957.pdf
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20.
Инвентарный номер: нет.
   
   R 30

   
    Reactivity of polyfluoroalkyl-containing lithium 1,3-diketonates: activation by nitrosation / V. I. Filyakova, N. S. Boltachova, N. V. Palysaeva, P. A. Slepukhin, T. I. Filyakova, V. N. Charushin, A. B. Sheremetev // Успехи синтеза и комплексообразования = Advances in synthesis and complexing: Сборник тезисов четвертой Международной научной конференции. - Москва : РУДН, 2017. - Ч. 1 : Секция «Органическая химия». - С. 63
ББК 24
Рубрики: ХИМИЧЕСКИЕ НАУКИ

\\\\Expert2\\NBO\\статьи из сборников\\Успехи синтеза и комплексообразования 2017 Ч. 1 С. 63.pdf
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