Центральная Научная Библиотека УрО РАН

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   T 44


    The Ritter reaction in the 5-cyano-1,2,4-triazine series [Electronic resource] / D. N. Kozhevnikov, T. V. Nikitina, V. L. Rusinov, O. N. Chupakhin // Mendeleev Communications. - 2000. - Vol. 10, N 3. - P117-118 . - ISSN 0959-9436

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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   E 97


    Extensive degradation of the heterocyclic system in the reaction of 1,2,4-triazolo[5,1-c]trazin-7(4H)-ones with resorcinol and its derivatives [Electronic resource] / D. N. Kozhevnikov, V. L. Rusinov, E. N. Ulomskii, O. N. Chupakhin, H. Neunhoeffer // Mendeleev Communications. - 1996. - N 4. - P152-153 . - ISSN 0959-9436

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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   A 10


    A general method for the synthesis of 1,2,4-triazine-4-oxides [Electronic resource] / D. N. Kozhevnikov, V. N. Kozhevnikov, V. L. Rusinov, O. N. Chupakhin // Mendeleev Communications. - 1997. - N 6. - P238-239 . - ISSN 0959-9436

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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   N 91


    Nucleophilic substitution of hydrogen in the reaction of 1,2,4-triazine-4-oxides with cyanides [Electronic resource] / O. N. Chupakhin, V. L. Rusinov, E. N. Ulomskii, D. N. Kozhevnikov, H. Neunhoeffer // Mendeleev Communications. - 1997. - N 2. - P66-67 . - ISSN 0959-9436

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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   S 81


    Stable sigma-adducts of 6-phenyl-1,2,4-triazine 4-oxides with phenols [Electronic resource] / D. N. Kozhevnikov, E. N. Ulomskii, V. L. Rusinov, O. N. Chupakhin // Mendeleev Communications. - 1997. - N 3. - P116-117 . - ISSN 0959-9436

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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   K 80

    Kozhevnikov, D. N.
    Sigma-adducts of 1,2,4-triazine 4-oxides with Nucleophiles. I.Site Selectivity for the Addition Reaction Controlled by Strength of Acids [Text] : доклад, тезисы доклада / D. N. Kozhevnikov, O. N. Chupakhin, V. L. Rusinov // International Memorial I.Postovsky Conference on Organic Chemisty, Ekaterinburg, March 17-20, 1998 : program and abstracts. - Ekaterinburg, 1998. - P79

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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   S 59


    Sigma-adducts of 1,2,4-triazine 4-oxides with Nucleophiles. II.Oxidation and Elimination as Two Pathways of sigma-adducts Aromatization [Text] : доклад, тезисы доклада / O. N. Chupakhin, I. S. Kovalev, D. N. Kozhevnikov, V. L. Rusinov // International Memorial I.Postovsky Conference on Organic Chemisty, Ekaterinburg, March 17-20, 1998 : program and abstracts. - Ekaterinburg, 1998. - P80

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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   N 91


    Nucleophilic Substitution of the Cyano Group in 1,2,4-triazines [Text] : доклад, тезисы доклада / O. N. Chupakhin, I. S. Kovalev, V. N. Kozhevnikov, D. N. Kozhevnikov, V. L. Rusinov // International Memorial I.Postovsky Conference on Organic Chemisty, Ekaterinburg, March 17-20, 1998 : program and abstracts. - Ekaterinburg, 1998. - P78

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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   F 94


    From 1,2,4-triazines towards Substituted pyridines and their cyclometalled Pt complexes [Electronic resource] / V. N. Kozhevnikov, M. M. Ustinova, P. A. Slepukhin, D. N. Kozhevnikov, Amedeo Santoro, W. Dunkan // Tetrahedron Letters. - 2008. - Vol. 49, № 26. - P4096-4098 : рис. - Библиогр. : с. 4098 (28 назв.) . - ISSN 0040-4039

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A new, efficient methodology for the synthesis of substituted thienylpyridines includes the synthesis of 3-thienyl-1,2,4-triazines using simple heterocyclisation followed by easy transformation of the triazine ring to a pyridine through an aza Diels–Alder approach. A variety of substituted pyridines can be easily achieved using cheap, commercially available reagents such as bromoacetylarenes, aroyl hydrazides, norbornadiene, and enamines in various combinations. New thienylpyridines form phosphorescent cyclometallated Pt complexes.??

\\\\Expert2\\nbo\\Tetrahedron Letters\\2008, v. 49, p.4096.pdf
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10.

Инвентарный номер: нет.

   F 12


    Facile Synthesis of 6-aryl-3-pyridyl-1,2,4-triazines as a key step towards hightly fluorescent 5-substituted bipyridines and their Zn(II) and Ru(II) complexes [Electronic resource] / V. N. Kozhevnikov, O. V. Shabunina, D. S. Kopchuk, M. M. Ustinova, B. Konig, D. N. Kozhevnikov // Tetrahedron. - 2008. - Vol. 64, № 37. - P8963-8973 : рис., табл. - Библиогр. : с. 8973 (21 назв.) . - ISSN 0040-4020

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A wide series of substituted bipyridines were obtained through the synthesis of 1,2,4-triazines and their aza Diels–Alder reactions. The reported method facilitates the synthesis of functionally diverse bipyridines that provides fine-tuning of photophysical properties of new ligands and their Zn(II) and Ru(II) complexes. Some of substituted bipyridines exhibit ‘off–on’ fluorescence response toward Zn2+ cations.????

\\\\Expert2\\nbo\\Tetrahedron\\2008, v. 64, N37, p. 8963.pdf
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11.

Инвентарный номер: нет.

   Д 26


    9-Allyl-1,7-dicarbadodecaborane as a dienophile in aza Diels-Alder reactions of 1,2,4-triazines: synthesis of pyridines bearing a carborane cage [Electronic resource] / A. M. Prokhorov, P. A. Slepukhin, V. L. Rusinov, V. N. Kalinin, D. N. Kozhevnikov // Tetrahedron Letters. - 2008. - Vol. 49, № 23. - P3785-3789

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
TRIAZINES -- PYRIDINES
Аннотация: The synthesis of pyridine and bipyridine derivatives of m-carborane via aza Diels–Alder reaction of 1,2,4-triazines with 9-allyl m-carborane and their structural characterization and photophysical properties are described. The products 3- and 4-(m-carborane-9-ylmethyl)-2,2`-bipyridines form Zn(II) complexes on reaction with ZnCl2, which increases significantly their fluorescence intensity.

\\\\Expert2\\nbo\\Tetrahedron Letters\\2008, v. 49, p.3785.pdf
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12.

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   C 21


    Carborane-Functionalized Polyaza Aromatic Ligands: Synthesis, Crystal Structure, and a Copper(II) Complex [Text] / A. M. Prokhorov, D. N. Kozhevnikov, V. L. Rusinov, O. N. Chupakhin, I. V. Glukhov, M. Yu. Antipin, O. N. Kazheva, A. N. Chekhlov, O. A. Dyachenko // Organometallics. - 2006. - Vol. 25, № 12. - P2972-2977

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A consecutive aromatic nucleophilic substitutions of hydrogen in 1,2,4-triazine 4-oxides and an aza Diels?Alder reaction is a versatile route to carborane-functionalized bi- and terpyridines and their 1,2,4-triazine analogues. The heterocycles facilitate deboronation of the substituted carboranes, and the carborane moiety has a significant influence on the coordination properties of the ligands as well

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13.

Инвентарный номер: нет.

   S 98


    Synthesis and antiviral activity of 2-amino-3-ethoxycarbonylpyrazine derivatives [Electronic resource] / V. L. Rusinov [et al.] // Pharmaceutical Chemistry Journal. - 2005. - Vol. 39, № 12. - P630-635. - Библиогр. : с. 635 (6 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A series of substituted 2-amino-3-ethoxycarbonylpyrazines containing indole, resorcinol, thiophenol, ethyl cyanoacetate, indandione, and antipyrine moieties was obtained via reactions of nucleophilic substitution of hydrogen in the initial 2-aminopyrazine-1-oxides. Some of the synthesized compounds inhibit the reproduction of measles viruses and exhibit a weak antiviral activity with respect to Marburg virus. However, most of the new substituted pyrazines are not cytotoxic and exhibit no activity against ortho-poxviruses and measles viruses.

\\\\Expert2\\nbo\\Pharmaceutical Chemistry Journal\\2005, 39 (12), 630.pdf
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14.

Инвентарный номер: нет.

   F 94


    From 3-chloromethyl-1,2,4-triazine 4-oxides to various substituted pyridines and 1,2,4-triazines [Electronic resource] / V. N. Kozhevnikov, D. N. Kozhevnikov, O. V. Shabunina, N. N. Kataeva, S. A. Yushchuk, V. L. Rusinov, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2005. - Vol. 54, № 9. - P2187-2196. - Библиогр. : с. 2196 (24 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: An efficient strategy for the synthesis of new pyridine and 1,2,4-triazine derivatives starting from available 6-aryl-3-chloromethyl-1,2,4-triazine 4-oxides was proposed. The deoxygenative nucleophilic hydrogen substitution in the triazine-oxide ring, nucleophilic substitution of the chlorine atom in the side chain, and transformations of the 1,2,4-triazine ring into the pyridine ring via the inverse-electron-demand Diels-Alder reactions, being used in different orders, are a rather flexible tool for the functionalization of the titled heterocycles. The cyanide anion, indoles, thiophenols, amines, and triphenylphosphine were used as nucleophiles. The direct introduction of indole residues into the 1,2,4-triazine ring followed by the substitution of the chlorine atom by a residue of the primary or secondary aliphatic amine was found to be the most convenient method for the library synthesis.

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2005, 54 (9), 2187-2196.pdf
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15.

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   C 75


    Consecutive nucleophilic substitution and aza Diels-Alder reaction-an efficient strategy to functionalized 2,2'-bipyridines [Electronic resource] / D. N. Kozhevnikov, V. N. Kozhevnikov, A. M. Prokhorov, M. M. Ustinova, V. L. Rusinov, O. N. Chupakhin, G. G. Aleksandrov, B. Koenig // Tetrahedron Letters. - 2006. - Vol. 47, № 6. - P869-872

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: An efficient strategy for the synthesis of functionalized 2,2`-bipyridines is reported. The strategy is based on readily available 3-pyridyl-1,2,4-triazine 4-oxides and uses a reaction sequence of nucleophilic substitution of hydrogen and aza Diels-Alder reaction.

\\\\Expert2\\nbo\\Tetrahedron Letters\\2006, v. 47, p.869.pdf
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16.

Инвентарный номер: нет.

   T 82


    Transformations of 1,2,4-triazine 4-oxides to pyridazines and triazolo[4,3-b]pyridazines by the action of substituted acetonitriles [Electronic resource] / D. N. Kozhevnikov, N. N. Kataeva, V. L. Rusinov, O. N. Chupakhin, G. G. Aleksandrov // Mendeleev Communications. - 2005. - Vol. 15, № 1. - P31-33

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Two types of ring transformations of 1,2,4-triazine to pyridazine were found: 1,2,4-triazine 4-oxides bearing ortho-halophenyl in the 3-position react with phenylacetonitrile under basic conditions to form 3-(2-oxyphenyl)[1,2,4]triazolo[4,3-b]pyridazines, while the reactions of 3,6-diaryl-1,2,4-triazin 4-oxides with sodium ethyl cyanoacetate afforded 2-aminopyridazines.

\\\\Expert2\\nbo\\Mendeleev Communications\\2005, v.15, p.31.pdf
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17.

Инвентарный номер: нет.

   S 98


    Synthesis, structure and luminescence of ruthenium complexes with 6-cyano-2,2'-bipyridines [Electronic resource] / V. N. Kozhevnikov, D. N. Kozhevnikov, O. V. Shabunina, V. L. Rusinov, O. N. Chupakhin, M. Zabel, B. Koenig // Mendeleev Communications. - 2005. - Vol. 15, № 1. - P6-8

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The crystallographic data, NMR and UV-VIS spectra and luminescence of the heteroleptic complexes [Ru(L)(bpy)2](PF6)2 (L = 5-aryl-6-cyano-2,2'-bipyridine) are described.

\\\\Expert2\\nbo\\Mendeleev Communications\\2005, v.15,p.6.pdf
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18.

Инвентарный номер: нет.

   A 53


    An efficient route to 5-(hetero)aryl-2,4'- and 2,2'-bipyridines through readily available 3-pyridyl-1,2,4-triazines [Electronic resource] / V. N. Kozhevnikov, D. N. Kozhevnikov, O. V. Shabunina, V. L. Rusinov, O. N. Chupakhin // Tetrahedron Letters. - 2005. - Vol. 46, № 11. - P1791-1793

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A new route to substituted bipyridines based on a new method for the synthesis of substituted 3-pyridyl-1,2,4-triazines and their aza-Diels-Alder reactions is shown to be an efficient strategy for the preparation of structurally diverse bipyridine ligands.

\\\\Expert2\\nbo\\Tetrahedron Letters\\2005, v. 46, p.1791.pdf
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19.

Инвентарный номер: нет.

   A 53


    An efficient route to 5,5''-diaryl-2,2':6',2''-terpyridines through 2,6-bis(1,2,4-triazin-3-yl)pyridines [Electronic resource] / V. N. Kozhevnikov, D. N. Kozhevnikov, O. V. Shabunina, V. L. Rusinov, O. N. Chupakhin // Tetrahedron Letters. - 2005. - Vol. 46, № 9. - P1521-1523

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A new route to substituted 2,2`:6`,2``-terpyridines based on a new method for the synthesis of substituted 2,6-bis(1,2,4-triazin-3-yl)pyridines and their inverse electron demand Diels-Alder reaction is shown to be an efficient strategy for the synthesis of structurally diverse terpyridine ligands.

\\\\Expert2\\nbo\\Tetrahedron Letters\\2005, v. 46, p.1521.pdf
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20.

Инвентарный номер: нет.

   L 81


    Lithiacarboranes and 1,2,4-triazine 4-oxides: SNH reactions and ring transformations [Electronic resource] / O. N. Chupakhin, A. M. Prokhorov, D. N. Kozhevnikov, V. L. Rusinov, I. A. Glukhov, Z. A. Starikova, V. A. Ol'shevskaya, V. N. Kalinin, M. Yu. Antipin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2004. - Vol. 53, № 6. - P1223-1231. - Библиогр. : с. 1231 (14 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of 1-lithia-1,2- or 1,7-dicarba-closo-dodecaborane with 1,2,4-triazine 4-oxides can follow two competitive pathways: deoxygenative nucleophilic substitution of hydrogen to form 1-(1,2,4-triazin-5-yl)-1,2- or 1,7-dicarba-closo-dodecaboranes and the transformation of the 1,2,4-triazine ring into the triazoline ring giving rise to 1-(2-acetyl-1-aroyl-3-aryl-1,2,4-triazolin-5-yl)-1,2-dicarba-closo-dodecaboranes. Introduction of the electron-withdrawing triazine ring into the carborane cage substantially facilitates deboronation to give 1-(1,2,4-triazin-5-yl)-1,2-1,7-dicarba-nido-undecaboranes.

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2004, 53 (6), 1223-1231.pdf
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21.

Инвентарный номер: нет.

   A 94


    Auto-aromatization of the sigma(H)-adducts of 1,2,4-triazine 4-oxides with carbanions in reactions of nucleophilic substitution of hydrogen [Electronic resource] / D. N. Kozhevnikov, A. M. Prokhorov, V. L. Rusinov, O. N. Chupakhin // Mendeleev Communications. - 2000. - Vol.10, N6. - P227-228

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 1,2,4-triazine 4-oxides react with stable carbanions to form 5-substituted 1,2,4-triazines as the products of deoxygenation nucleophilic substitution of hydrogen

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22.

Инвентарный номер: нет.

   D 62


    Direct introduction of indoles into 2-aminopyrazine 1-oxides [Electronic resource] / I. S. Kovalev, D. N. Kozhevnikov, V. L. Rusinov, O. N. Chupakhin, D. V. Raikov, V. A. Pustovarov, B. V. Shul'gin // Mendeleev Communications. - 2000. - Vol.10, N6. - P229-230

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The synthesis of indolyl derivatives of 2-aminopyrazine, analogues of the bioluminescent natural product Cypridina etioluciferamine, with enhanced photoluminescent properties, is reported.

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23.

Инвентарный номер: нет.

   H 10


    H-1 and C-13-NMR investigations on-adduct formation of 1,2,4-triazine 4-oxides and 3-chloro-6-phenyl-1,2,4-triazine with liquid ammonia and alkylamines [Text] / A. Rykowski, O. N. Chupakhin, D. N. Kozhevnikov, V. N. Kozhevnikov, V. L. Rusinov, der Plas H. C. Van // Heterocycles. - 2001. - Т. 55, № 1. - P127-133

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 1H- and 13C-NMR spectra of the ?-adducts formed between 6-phenyl-1,2,4-triazine 4-oxide (1a), 3-ethyl-6-phenyl-1,2,4-triazine 4-oxide (1b) and liquid ammonia, methylamine or dimethylamine are described, together with 1H NMR spectra of 3-chloro-6-phenyl-1,2,4-triazine (7) in liquid ammonia. The results of the NMR study have shown that the carbon C-5 in 1a-b and 7 is the preferred site for nucleophilic attack by liquid ammonia and alkylamines at low temperatures (from -75° to -20°C). The ?-adduct (5e) formed between 1a and dimethylamine at -75°C on heating to -20°C irreversibly converts to open-chain product (3a), via intermediary C-3 ?-adduct (6). The amination of 7 into 3-amino-6-phenyl-1,2,4-triazine (10) occurs via SN(AE) mechanism involving the isomerisation of the C-5 ?-adduct (8) into the C-3 ?-adduct (9) as confirmed by a 15N study with labeled liquid ammonia.

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24.

Инвентарный номер: нет.

   R 30


    Deoxygenative vs. vicarious nucleophilic substitution of hydrogen in reactions of 1,2,4-triazine 4-oxides with - alpha-halocarbanions [Text] / D. N. Kozhevnikov, V. L. Rusinov, O. N. Chupakhin, M. Makosza, A. Rykowski, E. Wolinska // European Journal of Organic Chemistry. - 2002. - № 8. - P1412-1416

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
AROMATIC SUBSTITUTION -- NUCLEOPHILIC SUBSTITUTION -- NITROGEN HETEROCYCLES
Аннотация: The 3,6-diaryl-1,2,4-triazine 4-oxides 1a-e undergo a nucleophilic substitution of hydrogen with the -halomethyl aryl sulfones 2, 3 and 7 by two alternative pathways: vicarious nucleophilic substitution (VNS) and/or an intramolecular deoxygenative process. The former pathway is found to dominate in the reaction of 1 with bromomethyl tolyl sulfone (7) yielding the 5-tosylmethyl-1,2,4-triazine 4-oxides 6, while the reaction with the chloromethyl aryl sulfones 2 and 3 leads to the 5-arylsulfonylchloromethyl-1,2,4-triazines 4 and 5, respectively, as the products of deoxygenative substitution. The reaction of 6-phenyl-1,2,4-triazine 4-oxide (1f) with the chloromethyl aryl sulfones 2 and 3 proceeds differently. At low temperature (-75 C) the products of the VNS reaction at position 5 (6f and 12f) are formed. At room temperature the 7-chloro-1-hydroxy-3-phenyl-7-(arylsulfonyl)-1,4,5-triazahepta-1,3,6-trienes 10f and 11f are obtained by addition of the carbanions 2 and 3 in the 3-position, followed by the ring opening of the resulting adduct. © Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)????????

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25.

Инвентарный номер: нет.

   K 80

    Kozhevnikov, D. N.
    1,2,4-Triazine N-oxides [Text] / D. N. Kozhevnikov, V. L. Rusinov, O. N. Chupakhin // Advances in Heterocyclic Chemistry. - 2002. - Vol. 82. - P261-305

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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26.

Инвентарный номер: нет.

   A 10


    A versatile strategy for the synthesis of functionalized 2,2 '-bi- and 2,2 ': 6 ',2 '-terpyridines via their 1,2,4-triazine analogues [Text] / V. N. Kozhevnikov, D. N. Kozhevnikov, T. V. Nikitina, V. L. Rusinov, O. N. Chupakhin, M. Zabel, B. Konig // Journal of Organic Chemistry. - 2003. - Vol. 68, № 7. - P2882-2888

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ALDEHYDES -- OXIDATION -- SUBSTITUTION REACTIONS
Аннотация: A general synthetic route for the synthesis of functionalized bi- and terpyridines is reported. Functionalized 1,2,4-triazene 4-oxides 7 and 8 - obtained from the reaction of hydrazones 1 with pyridine aldehydes and followed by oxidation - are functionalized by introduction of a cyano group via nucleophilic aromatic substitution. The thus-obtained 5-cyano-1,2,4-triazines 9 and 10 undergo facile inverse-electron-demand Diels-Alder reactions with enamines and alkenes to yield functionalized bi- and terpyridines, respectively. The substituent at position 6 of the 1,2,4-triazene 4-oxides must be aromatic or heteroaromatic in order to allow their facile synthesis, but other substituents and reagents may vary. Each step of the synthetic route allows diversification, which makes the approach particularly useful for the facile synthesis of a large variety of functionalized bi- and terpyridines.

\\\\Expert2\\nbo\\Journal of Organic Chemistry\\2003, v.68, N 7, p.2882. Chupakhin.pdf
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27.

Инвентарный номер: нет.

   A 77


    Aromatic nucleophilic substitution in 1,2,4-triazine 4-oxides with Grignard reagents [Text] / A. M. Prokhorov, D. N. Kozhevnikov, V. L. Rusinov, O. N. Chupakhin // Polish Journal of Chemistry. - 2003. - Vol. 77, № 9. - P1157-1161

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Addition of the Grignard reagents to 1,2,4-triazine 4-oxides followed by aromatization of the intermediate ?H-adducts by dehydrogenation or dehydration was used for synthesis of 5-alkyl- or 5-aryl-substituted 1,2,4-triazines and their 4-oxides.

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28.

Инвентарный номер: нет.

   T 44


    The amidine rearrangement in 5-amino-6-aryl-1,2,4-triazine-4-oxides initiated by hydroxylamine [Text] / O. N. Chupakhin, V. N. Kozhevnikov, A. M. Prokhorov, D. N. Kozhevnikov, V. L. Rusinov // Tetrahedron Letters. - 2000. - Vol. 41, № 38. - P7379-7382

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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29.

Инвентарный номер: нет.

   A 10


    A new route to 6,6 ''-dicyano-2,2':6 ',2 ''-terpyridines and their complexes with Ni(II) [Text] / D. N. Kozhevnikov, V. N. Kozhevnikov, T. V. Nikitina, V. L. Rusinov, O. N. Chupakhin, I. L. Eremenko, G. G. Aleksandrov // Tetrahedron Letters. - 2002. - Vol. 43, № 28. - P4923-4925

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SYNTHESIS -- TERPYRIDINES
Аннотация: A new methodology for the synthesis of functionalised 2,2?:6?,2??-terpyridine systems is suggested: sequential synthesis of the heterocyclic assemblies based on the 1,2,4-triazine ring, direct introduction of the cyano group in the 1,2,4-triazine ring and the transformation of the latter to a pyridine ring via an aza-Diels–Alder reaction????

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30.

Инвентарный номер: нет.

   S 98


    Synthesis of functionalised bipyridines by sequential nucleophilic substitution of hydrogen and cycloaddition in 1,2,4-triazine rings [Electronic resource] / D. N. Kozhevnikov, V. N. Kozhevnikov, T. V. Nikitina, V. L. Rusinov, O. N. Chupakhin, H. Neunhoeffer // Mendeleev Communications. - 2002. - Vol. 12, № 1. - P30-31

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SYNTHESIS -- BIPYRIDINES -- TRIAZINE
Аннотация: A new methodology for the synthesis of functionalised bipyridines by the direct cyanation of 3-(2-pyridyl)-1,2,4-triazine 4-oxide through nucleophilic substitution for hydrogen followed by the transformation of the 1,2,4-triazine ring into the pyridine ring by the Diels–Alder reaction and, finally, the chemical conversion of the cyano group is described

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1-30 31-61 61-61

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