Igor S Kovalev


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Person Info

NAME

Igor S

SURNAME

Kovalev

Publications in SciGraph latest 50 shown

  • 2018-10 A Modified Synthesis of 6-Aryl-3-(6-R-pyridin-2-yl)-1,2,4-triazines in RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
  • 2018-03 Substitution of Cyano Group in Position 5 of 1,2,4-Triazines by Carboxylic Acid Hydrazide Residues under Solvent-Free Conditions in RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
  • 2017-09 Detection of small signals in mass spectra in TECHNICAL PHYSICS
  • 2017-07 Effect of substituent in pyridine-2-carbaldehydes on their heterocyclization to 1,2,4-triazines and 1,2,4-triazine 4-oxides in RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
  • 2017-07 3,4,5,6-Tetrafluoro-1,2-dehydrobenzene in reactions with 1,2,4-triazines in JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
  • 2017-06 One-pot non-cyanide synthesis of 1-(pyridin-2-yl)isoquinoline-3-carbonitrile by reaction of 1-phenyl-2-[6-phenyl-3-(pyridin-2-yl)-1,2,4-triazin-5-yl]ethanone with 1,2-dehydrobenzene in the presence of isoamyl nitrite in RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
  • 2017-05 Transformations of 6,7-difluoroquinoxaline with Indoles: Synthesis of Indole-Substituted 6,7-difluoroquinoxalines and Tris(indol-3-yl)methane Derivatives in CHEMISTRY OF NATURAL COMPOUNDS
  • 2017-01 Solvent-free reaction of 1,2,4-triazine-5-carbonitriles with 4-(cyclohex-1-en-1-yl)morpholine. Unexpected decyanation in addition to classical aza-Diels–Alder reaction in RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
  • 2016-07 Solvent-free reaction of 3-aryl-6-(3-nitrophenyl)-1,2,4-triazines with 4-(cyclohex-1-en-1-yl)morpholine in RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
  • 2015-08 Synthesis of substituted 4,4´-dihalobiphenyls and their use for the preparation of isomeric bis(carbazolyl)biphenyls in RUSSIAN CHEMICAL BULLETIN
  • 2015-08 Effective synthetic approach to 4′,5-Diaryl-2,2′:6′,2″-terpyridines in RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
  • 2015-08 Reaction of 4,5-dimethoxy-1,2-dehydrobenzene with 3-(Pyridin-2-yl)-1,2,4-triazines in RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
  • 2015-07 Features of quinoxaline reactions with C-nucleophiles: Examples of dimerization of heterocycle in course of hydrogen substitution in RUSSIAN JOURNAL OF GENERAL CHEMISTRY
  • 2015-04 Preparation of 5,6´-diaryl-2,2´-bipyridines using a 1,2,4-triazine methodology in RUSSIAN CHEMICAL BULLETIN
  • 2015-04 Functionalized 2-(5-arylpyridin-2-yl)quinolines: synthesis and photophysical properties in RUSSIAN CHEMICAL BULLETIN
  • 2015-03 Synthesis of unsymmetric 6,6´-diaryl-2,2´-bipyridines using a 1,2,4-triazine methodology in RUSSIAN CHEMICAL BULLETIN
  • 2014-09 (Benzo[h])Quinolinyl-Substituted Monoazatriphenylenes: Synthesis and Photophysical Properties in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2014-09 Preparation of 3-Cyano-1-(2-Pyridyl)Isoquinolines by Using Aryne Intermediates in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2014-09 The Extension of Conjugated System in Pyridyl-Substituted Monoazatriphenylenes for the Tuning of Photophysical Properties in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2014-07 Mass spectrometric studies of self-condensation products of cyclohexanone under alkaline conditions and synthesis of dodecahydrotriphenylene and triphenylene from easily available reactants in RUSSIAN CHEMICAL BULLETIN
  • 2014-06 Synthesis of 8,10-dimethyl-1,10b-dihydro[1,3,5]triazino-[2,1-a]isoindole-2,4,6(3H)-trione by Direct arylation of 1,3,5-triazine-2,4(1H,3H)-dione in RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
  • 2014-06 Synthesis of 1-functionalized pyrenes from 1-lithiopyrene, and their application as fluorescent probes for the components of the Ginkgo biloba L. leaves extract in RUSSIAN CHEMICAL BULLETIN
  • 2013-10 Phenylglyoxal dihydrazones as unexpected products in the synthesis of 1,2,4-triazines by interaction of α-bromoacetophenones and arylhydrazides in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2013-07 Synthesis, thermal transformations, and mass spectrometric fragmentation of 4,4'-[1,2-bis(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)ethane-1,2-diyl]-bis(5-methyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one) in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2013-06 Preparation of triazatriphenylene cations, promising chemosensors for nitro compounds in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2013-06 Preparation of Pyridyl-substituted Monoazatriphenylenes in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2013-03 Preparation of (benzo)isoquinolines using in situ generated aryne intermediates in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2012-07 Aryne intermediates in the synthesis of polynuclear heterocyclic systems (Review) in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2012-02 Synthesis of 1-amino-2,5-di(2-thienyl)benzenes as potential monomers for the preparation of hybrid polythiophene anionic sensors in RUSSIAN CHEMICAL BULLETIN
  • 2011-08 Synthesis of symmetrical dicarbazole-biphenyls, components of phosphorescentorganic light-emitting diodes (PHOLEDs) using organocuprates in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2009-02 Reaction of 2-pyridyllithium with azine N-oxides. Simple and convenient method for the synthesis of 2,2′-bipyridine 1-oxide and 2,2′:6′,2″:6″2′″-tetrapyridine 1′-oxide in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2008-10 SNH Reaction of lithiated nitronyl nitroxide with quinoline N-oxide in RUSSIAN CHEMICAL BULLETIN
  • 2008-10 Stable σH-adducts in reactions of ferrocenyllithium with azines in RUSSIAN CHEMICAL BULLETIN
  • 2005-12 Synthesis and antiviral activity of 2-amino-3-ethoxycarbonylpyrazine derivatives in PHARMACEUTICAL CHEMISTRY JOURNAL
  • 2003-07 SNH reactions of pyrazine N-oxides and 1,2,4-triazine 4-oxides with CH-active compounds in RUSSIAN CHEMICAL BULLETIN
  • 2002-05 Transformations of 1,2,4-Triazines in Reactions with Nucleophiles: V. SNH and ipso-Substitution in the Synthesis and Transformations of 5-Cyano-1,2,4-triazines in RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
  • 2001-09 Reactions of 1,2,4-Triazines with Nucleophiles. 6. Use of SNH Methodology for the Direct Introduction of Cyclic Diketone Residue into the 1,2,4-Triazine Ring FORENAME = D. N. in CHEMISTRY OF HETEROCYCLIC COMPOUNDS
  • 2001-06 SNH reactions of 1,2,4-triazine N-oxides, pyrazine N-oxides, and pterin N-oxides with arenethiols* in RUSSIAN CHEMICAL BULLETIN
  • Affiliations

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