U 50 Uncatalyzed reactions of alfa-(trihaloethylidene)nitroalkanes with push-pull enamines: a new type of ring-ring tautomerism in cyclobutane derivatives and the dramatic effect of the trihalomethyl group on the reaction pathway [Text] / V. Yu. Korotaev, A. Yu. Barkov, P. A. Slepukhin, M. I. Kodess, V. Ya. Sosnovskikh // Tetrahedron Letters. - 2011. - In Press, Accepted Manuscript, 30 august 2011. - P1-15. - Bibliogr. : p. 10-12 (15 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A new type of ring-ring isomerism, which consists of the reversible transformation of cyclobutane derivatives into substituted 1,2-oxazine N-oxides was found and studied by NMR spectroscopy and X-ray diffraction analysis. The starting materials were prepared by the stereoselective reaction of ?-(trifluoroethylidene)nitroalkanes, which react with ethyl ?-morpholino- and ?-piperidinocrotonates at the more nucleophilic ?-position, whereas the reaction of ?-(trichloroethylidene)nitroalkanes proceeds at the ?-methyl group to give the corresponding linear products \\\\Expert2\\nbo\\Tetrahedron Letters\\2011, In Press, Acc. Man. 30 aug.pdf |
S 98 Synthesis of Novel 5,6-Dihydropyrrolo[2,1-a]isoquinolines via Grob Reaction between (E)-1,1,1-Trifluoro-3-nitro-2-butene and 3,4-Dihydroisoquinolines / V. Yu. Korotaev, V. Ya. Sosnovskikh, A. Yu. Barkov, P. A. Slepukhin, Yu. V. Shklyaev // Journal of Heterocyclic Chemistry. - 2012. - Vol.49, №4. - С. 856-860 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): DIHYDROPYRROL -- ISOQUINOLINES -- DIHYDROISOQUINOLINES Аннотация: Uncatalyzed cycloaddition of 3,4-dihydroisoquinolines to (E)-1,1,1-trifluoro-3-nitro-2-butene via Grob reaction provide a simple one-step route to the 5,6-dihydropyrrolo[2,1-a]isoquinolines, which represent the basic structural framework of the antitumor active alkaloid crispine \\\\expert2\\NBO\\Journal of Heterocyclic Chemistry\\2010.v.49, p.856.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 |
H 62 Heterocyclic and Open-Chain Carboranes via Transition-Metal-Free C-H Functionalization of Mono- and Diazine-N-oxides [Electronic resource] / L. A. Galliamova, M. V. Varaksin, O. N. Chupakhin, P. A. Slepukhin, V. N. Charushin // Organometallics. - 2015. - Vol. 34, № 21. - С. 5285-5290. - Bibliogr. : p. 5290 (27 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): CYCLOMETALATED IRIDIUM COMPLEXES -- NEUTRON-CAPTURE THERAPY -- PHARMACOPHORES Аннотация: For the first time, the direct C(sp(2))-H functionalization methodology has successfully been applied to cause nucleophilic modification of mono- and diazine-N-oxides with the 1,2-closo-carborane moiety. As a result of these cross-coupling reactions uncatalyzed by transition metals, a series of novel C-modified heterocyclic and open-chain (vinyl acetylene) carboranes have been obtained. Complexes of phenanthrolinyl-substituted omicron-carborane with Cu(II) of various architectures have been synthesized. \\\\expert2\\nbo\\Organometallics\\2015. V. 34, N 21. P. 5285.pdf |
D 62 Direct nuclophilic C-H functionalization of azines and their N-oxides by lithium derivatives of aldonitrones [Electronic resource] / M. V. Varaksin, I. A. Utepova, O. N. Chupakhin, V. N. Charushin // Tetrahedron. - 2015. - Vol. 71, №38. - С. 7077-7082. - Bibliogr. : p. 7082 (23 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): DIPOLE-STABILIZED CARBANIONS -- ORGANIC-SYNTHESIS -- CHEMICAL-PROPERTIES; Аннотация: Novel ligands of the azine family for complexing with metals have been obtained as a result of the uncatalyzed C-C coupling reactions of quinoline, quinoxaline, 1,10-phenantroline, and their N-oxides with (1-oxido-3-phenyl-1,4-diazaspiro[4.5]deca-1,3-dien-2-yl)lithium \\\\expert2\\nbo\\Tetrahedron\\2015, v. 71 , p. 7077-7082.pdf |
U 50 Uncatalyzed, highly stereoselective addition of a-morpholinostyrene to 3-nitro-2-(trihalomethyl)-2H-chromenes. Synthesis of trans-cis- and trans-trans-3-nitro-4-phenacyl-(2-trihalomethyl)chromanes / V. Yu. Korotaev, I. V. Kotovich, A. Yu. Barkov, I. B. Kutyashev, M. I. Kodess, V. Ya. Sosnovskikh // Tetrahedron. - 2016. - Vol. 72, № 1. - С. 216-226. - Bibliogr. : p. 226 (13 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): UNCATALYZED -- STEREOSELECTIVE ADDITION -- SYNTHESIS \\\\expert2\\NBO\\Tetrahedron\\2016, v. 72 , p. 216-226.pdf |