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Общее количество найденных документов : 13
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1.
Инвентарный номер: нет.
   
   C 47


    Charushin, V. N.
    Nucleophilic aromatic substitution of hydrogen and related reactions [Electronic resource] / V. N. Charushin, O. N. Chupakhin // Mendeleev Communications. - 2007. - Vol. 17, № 5. - P249-254
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The classical concept of nucleophilic aromatic substitution (SNAripso) has been complemented with a new synthetic methodology (SNH), enabling one to build new carbon–carbon C(sp2)–C(sp3), C(sp2)–C(sp2) and C(sp2)–C(sp) or carbon–heteroatom C(sp2)–X (X is O, N, P, S, halogen) bonds through nucleophilic displacement of hydrogen in an aromatic ring.

\\\\Expert2\\nbo\\Mendeleev Communications\\2007, v.17, p.249.pdf
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2.
Инвентарный номер: нет.
   
   C 47


    Charushin, V. N.
    S-N(H) methodology and new approaches to condensed heterocyclic systems [] / V. N. Charushin, O. N. Chupakhin // Pure and Applied Chemistry. - 2004. - Vol. 76, № 9. - С. 1621-1631 : рис. - Библиогр.: с. 1631 (70 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The review curveys the reactions of electron-deficient azaaromatic compounds with mono- and bifunctional nucleophilies in which a nucleophilic attack at the unsubstituted CH carbon of an aromatic ring is one of the key steps.Intramolecular S(N)H reactions will also be considered as effective synthetic tools to obtain condensed heterocyclic systems

\\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Pure and Applied Chemistry\\2004, v.76, N 9, p.1621.pdf
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3.
Инвентарный номер: нет.
   
   A 10


   
    A simple one pot synthesis of condensed 1,2,4-triazines by using the tandem AN-SNipso and SNH-SNipso reactions [Text] / O. N. Chupakhin, G. L. Rusinov, D. G. Beresnev, V. N. Charushin, H. Neunhoeffer // Journal of Heterocyclic Chemistry. - 2001. - Т. 38, № 4. - P901-907
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A new synthetic approach to condensed 1,2,4-triazines based on using the tandem AN-SNipso and SNH-SNipso reactions has been developed. 5-Methoxy-3-penyl-l,2,4 1,2,4-triazine and its N1-methyl quaternary salt were found to react with C,N-, C,O- and N,N?-bifunctional nucleophiles (m-phenylenediamine, resorcinol, semicarbazide and ureas) into triazacarbazoles, benzofuro[2,3-e][1,2,4]-triazines, and 6-azapurine derivatives. In all cases nucleophiles attack first the unsubstituted C-6 carbon of the triazine ring, while the final stage is replacement of the methoxy group affording cyclization products.

\\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Journal of Heterocyclic Chemistry\\2001.v.38.p.901.Chupachin.pdf
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4.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of carborane analogues of gamma-aminobutanoic acid [Text] / V. A. Ol'shevskaya, R. Ayuob, Z. G. Brechko, P. V. Petrovskii, G. L. Levit, V. P. Krasnov, V. N. Charushin, O. N. Chupakhin, V. N. Kalinin // Journal of Organometallic Chemistry. - 2005. - Vol. 690, № 11. - P2761-2765
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: General method for preparation of high yields of novel N-protected carborane amino acid derivatives, 3-acylamino-1-carboxymethyl-2-R-o-carboranes (R = H, Me, Ph), is reported. The synthesis starts from readily available 3-amino-o-carboranes and includes the protection of amino group, introduction of carboxymethyl function to the carbon atom of polyhedron via the metallation of carborane CH bond with sodium amide in liquid ammonia, and treatment of corresponding sodium carboranes with sodium bromoacetate. Deprotection of N-acylated carborane amino acids is studied in acidic media. Depending on the procedure employed, closo- or nido-carborane amino acids were obtained

\\\\Expert2\\nbo\\Journal of Organometallic Chemistry\\2005, v. 690, p.2761.pdf
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5.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of carbon encapsulated metal (Ni and Cu) nano particles and applications for chiral catalysts [Text] / Young Rang Uhm , Hi Min Lee , O. V. Fedorova, I. G. Ovchinnikova, M. S. Valova, G. L. Rusinov, V. N. Charushin, Chang Kyu Rhee // Research on Chemical Intermediates . - 2010. - Vol. 36, № 6-7. - P867-873. - Bibliogr. : p. 873 (15 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Carbon-encapsulated Ni and Cu nanoparticles with a core/shell structure were synthesized by levitational gas condensation (LGC). Methane (CH4) gas was used to coat the surface of the Ni and Cu nanoparticles. The Ni particles had a core diameter of 10 nm, and were covered by 2–3 nm thin carbon layers. In the case of Cu, the particles had a core diameter of 30 nm, and multi-shells with a thickness of 2–3 nm. Biginelli reaction in the presence of l-proline and Ni encapsulated nanoparticles was carried out to change the ratio between stereoisomers in favor of the S-enantiomer for 3,4–dihydropyrimidine (DHPM) with an excess of about 18%

\\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Research on Chemical Intermediates\\2010, v. 36, N. 6-7, p.867.pdf
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6.
Инвентарный номер: нет.
   


   
    2-Azido-5-nitropyrimidine: Synthesis, Molecular Structure, and Reactions with N-, O-, and S-Nucleophiles [Electronic resource] / E. B. Gorbunov, R. K. Novikova, P. V. Plekhanov, P. A. Slepukhin, G. L. Rusinov, V. L. Rusinov, V. N. Charushin, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 2013. - Vol.49, №5. - P765-775. - Библиогр.: с. 775 (13 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SYNTHESIS -- 2-AZIDO-5-NITROPYRIMIDINE -- AZIDO-TETRAZOLE TAUTOMERISM
Аннотация: We describe the synthesis of 2-azido-5-nitropyrimidine and its azido-tetrazole tautomerism in various solvents and in the crystalline state. It was established that on interacting with N-nucleophiles the attack occurred at the C-2 carbon atom. The O- and S-nucleophiles attacked C-4 position of pyrimidine ring, resulting in tetrazole ring closure

\\\\expert2\\NBO\\Chemistry of Heterocyclic Compounds\\2013, v.49, N 5, p. 765-775.pdf
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7.
Инвентарный номер: нет.
   
   I-55


   
    Imidazoline ring cleavage in 1,3,6,10-tetraazatetracyclo-[7.3.1.02,7.06,13]trideca-4, 11-dienes, leading to the formation of diquinoxalino[1,2-a∶2′,3′-d]pyrrole derivatives [Electronic resource] / V. N. Charushin, G. M. Petrova, G. G. Aleksandrov, L. G. Egorova, A. I. Chernyshev, E. O. Sidorov, N. A. Klyuev, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 1987. - Vol. 23, № 4. - С. 426-435. - Bibliogr. : p. 435 (9 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CARBON ATOM -- ALCOHOLS -- THIOLS
Аннотация: Dibenzo[d,k]-1,3,6,10-tetraazatetracyclo[7.3.1.02,7.06,13]trideca-4,11-dienes undergo addition reactions at the C(2) carbon atom with alcohols and thiols, accompanied by cleavage of the C-N bond of the imidazoline ring, to generate diquinoxalino[1,2-a∶2′,3′-d]pyrrole derivatives.

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1987, v.23, N 4, p. 426.pdf
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8.
Инвентарный номер: нет.
   
   C 98


   
    Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 22. Crystal and molecular structure of tetrahydroquinoxaline condensed with the six-membered 1,3,4-thiadiazine ring [Electronic resource] / D. S. Yufit, Yu. T. Struchkov, V. N. Drozd, V. N. Charushin, V. G. Baklykov, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 1987. - Vol. 23, № 5. - С. 583-587. - Bibliogr. : p. 587 (19 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
X-RAY DIFFRACTION -- HYDROGENS -- TETRAHYDROPYRAZINE
Аннотация: X-ray diffraction examination of 4-acetyl-10-methyl-2-phenyl-1,4,4a,5,10,10a-hexahydro-1,3,4-thiadiazino[5,6-b]quinoxaline has shown that the 4a-H and 10a-H hydrogens attached to the carbon atoms common to both heterocycles are cis-oriented, as in the annelation of five-membered heterocycles to the tetrahydropyrazine ring, but in this case the torsion angle H(4a)C(4a)C(10a)H(10a) is much greater, having a value of 60‡

\\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1987, v.23, N 5, p. 583.pdf
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9.
Инвентарный номер: нет.
   
   A 67


   
    Application of 1H and 13C NMR to the structural elucidation of tetrahydroquinoxalines condensed with five-membered heterocycles [Electronic resource] / V. N. Charushin, A. I. Chernyshev, N. N. Sorokin, O. N. Chupakhin // Organic Magnetic Resonance. - 1984. - Vol. 22, № 12. - P775-778. - Bibliogr. : p. 778 (22 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
N-METHYLTETRAHYDROQUINOXALINES -- PYRROLE -- IMIDAZOLE
Аннотация: 1H and 13C NMR spectral data for 21 N-methyltetrahydroquinoxalines annelated with furan, pyrrole, imidazole or thiazole rings are reported. Unambiguous assignments of the ring junction 13C resonances were made on the basis of selective decoupling experiments and with the aid of one-bond and long-range 13C–1H coupling constants. The effects of five-membered heterocycles on the 1H and 13C chemical shifts of the ring junction hydrogen and carbon atoms are considered. Values of one-bond 1J(CH) and vicinal 3J(HH) coupling constants between the ring junction protons are also discussed as a diagnostic means for structural elucidation of tetrahydroquinoxalines condensed with five-membered heterocycles.

\\\\expert2\\nbo\\Organic Magnetic Resonance\\1984. V. 22, N 12. P. 775.pdf
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10.
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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