U 92 Utepova, I. A. Azinylferrocenes: synthesis and properties [Text] / I. A. Utepova, O. N. Chupakhin, V. N. Charushin // Heterocycles. - 2008. - Vol. 76, № 1. - P39-72 Рубрики: ХИМИЧЕСКИЕ НАУКИ |
D 62 Direct C-C coupling of ferrocenyllithium and azaheterocycles by nucleophilic substitution of hydrogen - synthesis of mono- and 1,1'-diazinylferrocenes [Text] / O. N. Chupakhin, I. A. Utepova, I. S. Kovalev, V. L. Rusinov, Z. A. Starikova // European Journal of Organic Chemistry. - 2007. - № 5. - P857-862 Рубрики: ХИМИЧЕСКИЕ НАУКИ |
S 10 S-N(H) Reactions of ferrocenyllithium and azine N-oxides [Text] / O. N. Chupakhin, M. V. Varaksin, I. A. Utepova, V. L. Rusinov // ARKIVOC. - 2009. - Vol. 2009, № 6. - P208-220 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A non-catalytic C-C coupling of ferrocenyllithium and heterocyclic N-oxides 2 was carried out for the first time using the reaction of nucleophilic substitution of hydrogen (SNH) in azines |
S 10 S-N(H) approach in the synthesis of nitronyl nitroxides [Text] / O. N. Chupakhin, I. A. Utepova, M. V. Varaksin, E. V. Tretyakov, G. V. Romanenko, V. Ovcharenko, D. V. Stass // Journal of Organic Chemistry. - 2009. - Vol. 74, № 7. - P2870-2872 Рубрики: ХИМИЧЕСКИЕ НАУКИ \\\\Expert2\\nbo\\Journal of Organic Chemistry\\2009, v.74, p.2870.pdf |
D 45 Deryabina, T. G. Interaction 3-(2-hydroxy-2-aryl/hetaryl-vinil)-1H-quinoxalin-2-ones with hydrazine hydrate [Text] : доклад, тезисы доклада / T. G. Deryabina, I. A. Utepova, O. N. Chupakhin // Fifth International Conference on Organic Chemistry for young Scientists (InterYCOS-2009) "Universities Contribution in the Organic Chemistry Progress", devoted to the 175 th anniversary of D.I.Mendeleevs birthday and 80th anniversary of the Chemistry department of St. Petersburg State University foundation, Saint-Petersburg, 22-25 june 2009 : abstr. - СПб., 2009. - 117 (P-1-19). - Bibliogr. : p. 117 (1 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ |
S 81 Stable sigma(H)-adducts in reactions of ferrocenyllithium with azines [Electronic resource] / I. A. Utepova, A. E. Lakhina, M. V. Varaksin, I. S. Kovalev, V. L. Rusinov, P. A. Slepukhin, M. I. Kodess, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2008. - Vol. 57, № 10. - P2156-2161 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Stable sigma(H)-adducts as intermediates of the nucleophilic substitution of hydrogen in 3-(2-pyridyl)-1,2,4-triazines were obtained for the first time using ferrocenyllithium as a nucleophilic reagent. The three-dimensional structures of the reaction products were established based on the X-ray diffraction study of 1-[4-ethyl-6-phenyl-3-(2-pyridyl)-5(H)-1,2,4-triazin-5-yl]f \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2008, 57 (10), 2156.pdf |
A 89 Asymmetric cyclopalladation of 6-ferrocenyl-2,2-bipyridine and 2-ferrocenyl-1,10-phenanthroline [Electronic resource] / L. A. Bulygina, V. I. Sokolov, I. A. Utepova, V. L. Rusinov, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2007. - Vol. 56, № 5. - P1080-1082 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Cyclopalladation of 6-ferrocenyl-2,2?-bipyridine and 2-ferrocenyl-1,10-phenanthroline in the presence of the N-acylamino acid salt as the asymmetric catalyst was performed. Some reactions of the resulting bicyclic palladium derivatives with tridentate (N,N,C) ligands were studied \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2007, 56 (5), 1080-1082.pdf |
C 52 Chiroptical properties and new derivatives of cyclopalladated 6-ferrocenyl-2,2-bipyridine. Molecular structure of a tert-butyl isocyanide derivative [Electronic resource] / L. A. Bulygina, Z. A. Starikova, K. K. Babievskii, I. A. Utepova, V. L. Rusinov, O. N. Chupakhin, V. I. Sokolov // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2008. - Vol. 57, № 10. - P2214-2216 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Optically active cyclopalladated 6-ferrocenyl-2,2?-bipyridine has been studied by circular dichroism and luminescent spectroscopy; a replacement of the chloride ion at palladium with the rhodanide ion and tert-butyl isocyanide molecule has been carried out; molecular structure of the product in the latter case has been determined by X-ray diffraction analysis \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2008, 57 (10), 2214-2216.pdf |
E 27 Effect of heterocyclic derivatives of ferrocene on free-radical polymerization of methyl methacrylate and styrene [Text] / R. M. Islamova, O. I. Golovochesova, Yu. B. Monakov, I. A. Utepova, A. A. Musikhina, O. N. Chupakhin // Polymer science. Series B. - 2010. - Vol. 52, № 11-12. - P637-647 : il. - Bibliogr. : p. 647 (13 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): HETEROCYCLIC DERIVATIVES -- FERROCENE -- FREE-RADICAL POLYMERIZATION -- METHYL METHACRYLATE -- STYRENE Аннотация: The free-radical bulk homopolymerization of methyl methacrylate and styrene initiated by benzoyl peroxide or AIBN in the presence of heterocyclic derivatives of ferrocene is studied. It is shown that, in the case of the peroxide initiator, ferrocene derivatives form highly efficient initiation systems, which make it possible to polymerize methyl methacrylate at a high rate, to reduce the molecular mass of polymers, and to synthesize polymers with a high content of syndiotactic triads, while in the case of AIBN, such systems are not formed. \\\\Cserver\\Dist\\НБО\\Электронная библиотека_Библиогр1\\Polymer science. Series B\\2010, V. 52, N 11-12, p. 637-647.pdf |
C 74 Complex radical polymerization of methyl methacrylate in the presence of heterocyclic ferrocene derivatives [Text] / Yu. B. Monakov, R. M. Islamova, A. V. Golovchenko, I. A. Utepova, A. A. Musikhina, O. N. Chupakhin // Doklady Chemistry. - 2010. - Vol. 432, № 1. - P140-143 : il. - Bibliogr. : p. 143 (13 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): RADICAL POLYMERIZATION -- METHYL METHACRYLATE -- HETEROCYCLIC FERROCENE DERIVATIVES \\\\Expert2\\nbo\\Doklady Chemistry\\2010, v. 432, N 1, p. 140-143.pdf |
T 44 The C-C coupling of ferrocenes with electron-deficlent azaaromatics - a new route for construction of heterocyclic ligands and complexes [] / O. N. Chupakhin, I. S. Kovalev, I. A. Utepova, V. L. Rusinov, V. N. Charushin // 20-th International Congress of Heterocyclic Chemistry, Palermo, July 31-August 5, 2005 : book of abstracts . - Palermo, Italy, 2005. - С. 507. - Библиогр.: с. 507 (3 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ |
F 42 Ferro- and antiferromagnetic interactions in polymeric and molecular complexes of Cu(hfac)2 with 1-oxoazin-2-yl-substituted nitronyl nitroxides [Text] / O. N. Chupakhin, E. V. Tretyakov, I. A. Utepova, M. V. Varaksin, G. V. Romanenko, A. S. Bogomyakov, S. L. Veber, V. Ovcharenko // Polyhedron. - 2011. - Vol. 30, № 4. - P647-653. - Bibliogr. : p. 653 (9 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Solid heterospin compounds based on Cu(hfac)2 complexes with a new group of nitronyl nitroxides bearing different azine-N-oxide substituents at position 2 of the 2-imidazoline ring (Ln) were studied. The major factor responsible for the change in the magnetic characteristics of the [Cu(hfac)2L1] complex with triazine nitronyl nitroxide with temperature was shown to be the specific pairwise packing of heterospin molecules with the dominant antiferromagnetic exchange between the radical fragments of adjacent molecules. For complexes of Cu(hfac)2 with 1-oxoazin-2-yl-substituted nitronyl nitroxides L2 and L4, 7-membered metallocycles were obtained, although they form rarely. It was shown that polymer chains formed in the solid complex with spin-labeled pyrazine-N-oxide [(Cu(hfac)2)3(L3)2] due to the cross-linking of {(Cu(hfac)2)2(L3)2} binuclear fragments via the bridging [Cu(hfac)2].???? \\\\Expert2\\nbo\\Polyhedron\\2011. v.30. p.647.pdf |
S 98 Synthesis, structure and redox properties of new cobalt(II) and nickel(II) complexes with 6-ferrocenyl-2,2?-bipyridyl [Text] / A. Golberg, M. Kiskin, V. Grinberg, S. Kozyukhin, A. S. Bogomyakov, I. A. Utepova, A. A. Sidorov, O. N. Chupakhin, I. L. Eremenko // Journal of Organometallic Chemistry. - 2011. - Vol. 696, № 13. - P2607-2610. - Bibliogr. : p. 2610 (17 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: New ionic complexes [ML2(MeCN)2]•2Otf (M = Co or Ni; L = 6-ferrocenyl-2,2?-bipyridyl) were synthesized and characterized by single-crystal X-ray diffraction. Cyclic voltammograms of the compounds [ML2(MeCN)2]•2Otf in CH2Cl2 show good cycle stability over 100 cycles in the quasi-reversible oxidation potential range (from 0.25 to 0.5 V).???? \\\\Expert2\\nbo\\Journal of Organometallic Chemistry\\2011, v.696, p.2607.pdf |
N 52 New Approach to the Synthesis of Azinylcymantrenes [Text] / I. A. Utepova, A. A. Musikhina, O. N. Chupakhin, P. A. Slepukhin // Organometallics. - 2011. - V. 30, № 11. - P3047-3053 : граф., табл. - Библиогр.: с. 3053 (21 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A versatile synthetic protocol was proposed for direct C-C coupling of a cymantrene fragment with various azaheterocycles on the basis of nucleophitic substitution of hydrogen in the absence of metal catalysts. |
N 52 New approach to synthesis of nitronyl and imino nitroxides based on S(N)(H) methodology [Text] / E. V. Tretyakov, I. A. Utepova, M. V. Varaksin, S. E. Tolstikov, G. V. Romanenko, A. S. Bogomyakov, D. V. Stass, V. Ovcharenko, O. N. Chupakhin // ARKIVOC. - 2011. - Part 8. - P76-98 : ил. - Bibliogr. : p. 98 (36 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: It is shown that S(N)(H) approach opens new possibilities in the synthesis of polyfunctional nitronyl and imino nitroxides. It is found that the interaction of 4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-3-oxide-1-oxyl lithium salt Li1 with 3,6-diaryl-1,2,4-triazines leads to formation of the corresponding triazines bearing nitronyl nitroxide or imino nitroxide substituent at position 5 of the heterocycle. The reaction of Li1 with pyridazine-N-oxide gives rise to nitroxide with buten-3-ynyl substituent 5. Spin-labeled 5 could be readily transformed by the use of 1,3-dipolar and nucleophilic addition reactions, as well as oxidative coupling, that gives a large group of new paramagnets: 2-(1H-pyrazol-5-yl)vinyl-, 2-ethynylcyclopropyl-, 2-(3-(ethoxycarbonyl) isoxazol-5-yl)vinyl-, 1-(pyrrolidin-1-yl)but-3-ynyl-substituted nitronyl nitroxide and a diradical -2,2'-((1E,7E)-octa-1,7-dien-3,5-diyne-1,8-diyl)bis(4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-3-oxide-1-oxyl). The new nitroxides were characterized by X-ray single crystal data, ESR and static magnetic susceptibility measurements |
D 62 Direct introduction of ferrocene moiety into azaheterocycles [Text] / O. N. Chupakhin, I. S. Kovalev, I. A. Utepova, V. L. Rusinov // 14th European Symposium on Organic Chemistry, Helsinki, Finland, 4-8 July 2005 : abstracts . - Helsinki, Finland, 2005. - P293. - Bibliogr. : p. 293 (2 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ |
P 17 Palladium(II)-Catalyzed Oxidative C–H/C–H Coupling and Eliminative SNH Reactions in Direct Functionalization of Imidazole Oxides with Indoles / M. V. Varaksin, I. A. Utepova, O. N. Chupakhin, V. N. Charushin // Journal of Organic Chemistry. - 2012. - Vol.77, №20. - С. 9087-9093 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): IMIDAZOLE OXIDES -- INDOLES Аннотация: Two novel synthetic approaches to realize the direct C(sp2)–H bond functionalization in cyclic nitrones are reported. Palladium(II)-catalyzed oxidative C–C coupling of 2,2-dialkyl-4-phenyl-2H-imidazole 1-oxides with indoles was shown to result in the formation of 5-indolyl-3-yl derivatives, while nucleophilic substitution of hydrogen (SNH) at C(5) of the same imidazole system was found to afford the corresponding deoxygenated compounds \\\\Expert2\\nbo\\Journal of Organic Chemistry\\2010, v.77, p.9087.pdf |
V 29 Varaksin, M. V. Direct C-C coupling of cyclic aldonitrones with 1,2,4-triazines using SN H reactions [Электронный ресурс] / M. V. Varaksin, I. A. Utepova, O. N. Chupakhin // Chemistry of Heterocyclic Compounds. - 2012. - Vol.48, №8. - P1213-1219 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): 1,2,4-TRIAZINES -- ALDONITRONES -- SnH REACTIONS Аннотация: New nitrogen heterocyclic derivatives were obtained by a direct uncatalyzed by metals C-C cross-coupling of a cyclic aldonitrone lithium derivative with 1,2,4-triazines \\\\Expert2\\NBO\\Chemistry of Heterocyclic Compounds\\2012, v.48, N 8, p.1213-1219.pdf |
S 98 Synthesis of chiral ferrocenylazines. Negishi cross-coupling or S N H reactions? [Electronic resource] / A. A Musikhina, I. A. Utepova, N. S. Serebryakov, O. N. Chupakhin, V. N. Charushin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2013. - Vol.49, №8. - С. 1191-1194. - Bibliogr. : p. 1194 (28 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): SYNTHESIS -- CHIRAL FERROCENYLAZINES -- NEGISHI Аннотация: Preparation of new hetaryl-containing planar chiral ferrocene by a nucleophilic substitution of hydrogen in azines was performed using a lithium derivative of (S)-ferrocenyl-p-tolylsulfoxide as s nucleophilic reagent \\\\expert2\\NBO\\Russian Journal of Organic Chemistry\\2013, 49, (8), 1191-1194.pdf |
S 98 Synthesis of nitroxyl radical by direct nucleophilic functionalization of a C-H bond in the azadiene systems [Electronic resource] / M. V. Varaksin, E. V. Tretyakov, I. A. Utepova, G. V. Romanenko, A. S. Bogomyakov, D. V. Stass, R. S. Sagdeev, V. Ovcharenko, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2012. - Vol.61, №7. - С. 1469-1473. - Bibliogr. : p. 1473 (15 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): NITRONES -- NITRONYL NITROXYLS -- ESR SPECTRA Аннотация: Cyclic dinitrones underwent nucleophilic substitution of the hydrogen atom in the reaction with a paramagnetic carbanion, the lithium derivative of 4,4,5,5 tetramethyl 4,5 dihydro 1H imidazol 1 oxyl 3 oxide, to give polyfunctional nitronyl nitroxyls \\\\expert2\\NBO\\Russian Chemical Bulletin\\2012, 61 (7), 1469-1473.pdf |