Search Results - "Chipanina, Nina N."

The basicity of sulfonamides and carboxamides. Theoretical and experimental analysis and effect of fluorinated substituent by Shainyan, Bagrat. A., Chipanina, Nina. N., Oznobikhina, Larisa. P.

“…The basicity of a series of sulfonamides and carboxamides with respect to protonation and hydrogen‐bonded complex formation with phenol was investigated by…”
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The Rivalry between Intramolecular Tetrel Bonds and Intermolecular Hydrogen Bonds in (O-Si) Chelates of N-Silylmethylamides and -ureas. A Theoretical Study by Chipanina, Nina N, Shainyan, Bagrat A, Oznobikhina, Larisa P, Lazareva, Nataliya F

“…The comparison of the results of theoretical calculations of (O-Si) chelates of N-silylmethylated amides and ureas with the axial chlorine or fluorine atom at…”
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Halogenation of Electron‐Deficient Vicinal Substituted Alkenes: Regio‐ and Stereoselectivity by Zubkov, Ilya N., Ushakov, Igor A., Chipanina, Nina N., Rulev, Alexander Yu

“…The halogenation of electron‐deficient vicinal substituted alkenes leads mainly to the mixture of regio‐ and stereoisomers of monohalogenated derivatives…”
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Tetrel Bonding along the Pathways of Transsilylation and Alkylation of N‑Trimethylsilyl‑N‑methylacetamide with Bifunctional (Chloromethyl)fluorosilanes by Chipanina, Nina N, Lazareva, Nataliya F, Oznobikhina, Larisa P, Shainyan, Bagrat A

“…A quantum chemical study has been carried out on the complexes formed in the first stage of the reaction of (chloromethyl)­trifluorosilane with an ambident…”
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Supramolecular structure and isomeric transformations of N-t-butyl-N′-trifluoromethanesulfonacetamidine by Shainyan, Bagrat A., Chipanina, Nina N., Oznobikhina, Larisa P., Sterkhova, Irina V., Astakhova, Vera V., Moskalik, Mikhail Yu

“…X-ray molecular and supramolecular structure were analyzed for N - t -Bu- N ′-(triflyl)acetamidine t -BuNHC(Me) = NTf 1 and compared to that of…”
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Molecular Structure, Intramolecular Hydrogen Bonding, Solvent‐Induced Isomerization, and Tautomerism in Azolylmethylidene Derivatives of 2‐Indanone by Sigalov, Mark V., Shainyan, Bagrat A., Chipanina, Nina N., Oznobikhina, Larisa P.

“…Bis adducts of 2‐indanone with 1H‐pyrrole‐2‐carbaldehyde, 1H‐imidazole‐2‐carbaldehyde, 1H‐imidazole‐5‐carbaldehyde, and 1H‐indazole‐3‐carbaldehyde 3–6 have…”
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Intramolecular and intermolecular bifurcated hydrogen bonds in 2‐pyrrolyl‐7‐hydroxy‐2‐methylidene‐2,3‐dihydro‐1H‐inden‐1‐one by Chipanina, Nina N., Oznobikhina, Larisa P., Sigalov, Mark V., Shainyan, Bagrat A.

“…Cyclic and linear dimers as well as the solvate H‐bonded complexes of the Z and E isomers of 2‐pyrrolyl‐7‐hydroxy‐2‐methylidene‐2,3‐dihydro‐1H‐inden‐1‐one 1…”
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Intra- and Intermolecular Hydrogen Bonds in Pyrrolylindandione Derivatives and Their Interaction with Fluoride and Acetate: Possible Anion Sensing Properties by Sigalov, Mark V, Shainyan, Bagrat A, Chipanina, Nina N, Oznobikhina, Larisa P

“…The series of push–pull compounds containing the pyrrole ring as a donor and the 1,3-indandione derived moieties as the acceptor unit were synthesized, and…”
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Supramolecular structure and tautomerism of trifluoromethanesulfonamidines by Shainyan, Bagrat A., Chipanina, Nina N., Oznobikhina, Larisa P., Sterkhova, Irina V., Moskalik, Mikhail Yu, Astakhova, Vera V., Ganin, Anton S.

“…DFT calculations were performed for a series of N -triflyl substituted amidines, their dimers, and hydrogen-bonded complexes with hexafluoroisopropanol (HFIP)…”
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Synthesis and Conformational Analysis of 3‑Methyl-3-silatetrahydropyran by GED, FTIR, NMR, and Theoretical Calculations: Comparative Analysis of 1‑Hetero-3-methyl-3-silacyclohexanes by Shainyan, Bagrat A, Kirpichenko, Svetlana V, Chipanina, Nina N, Oznobikhina, Larisa P, Kleinpeter, Erich, Shlykov, Sergey A, Osadchiy, Dmitriy Yu

“…3-Methyl-3-silatetrahydropyran 1 was synthesized and its molecular structure and conformational behavior was studied by gas-phase electron diffraction (GED),…”
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Apicophilicity versus Hydrogen Bonding. Intramolecular Coordination and Hydrogen Bonds in N‑[(Hydroxydimethylsilyl)methyl]- N,N ′‑propyleneurea and Its Hydrochloride. DFT and FT-IR Study and QTAIM and NBO Analysis by Chipanina, Nina N, Lazareva, Nataliya F, Aksamentova, Tamara N, Nikonov, Alexey Yu, Shainyan, Bagrat A

“…Conformers of N-[(hydroxydimethylsilyl)methyl]- N,N ′-propyleneurea (1) and their hydrochlorides (2) with HCl coordinated to different basic sites have been…”
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Acid‐base properties and supramolecular structure of N‐[(hydroxymethyl)triazolyl]triflamides: DFT, ab initio, and FTIR study by Shainyan, Bagrat A., Chipanina, Nina N., Oznobikhina, Larisa P., Meshcheryakov, Vladimir I.

“…For N‐{[2‐(hydroxymethyl)‐2H‐1,2,3‐triazolyl‐4‐yl]methyl}triflamide 1, N‐{[2‐(hydroxymethyl)‐2H‐1,2,3‐triazolyl‐4‐yl]methyl}‐N‐phenyltriflamide 2, and…”
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1,3-Dimethyl-3-silapiperidine: Synthesis, Molecular Structure, and Conformational Analysis by Gas-Phase Electron Diffraction, Low Temperature NMR, IR and Raman Spectroscopy, and Quantum Chemical Calculations by Shainyan, Bagrat A, Kirpichenko, Svetlana V, Kleinpeter, Erich, Shlykov, Sergey A, Osadchiy, Dmitriy Yu, Chipanina, Nina N, Oznobikhina, Larisa P

“…The first Si–H-containing azasilaheterocycle, 1,3-dimethyl-3-silapiperidine 1, was synthesized, and its molecular structure and conformational properties were…”
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Basicity of trifluoromethylsulfonylformamidines. DFT and FTIR study and NBO analysis by Shainyan, Bagrat A., Chipanina, Nina N., Oznobikhina, Larisa P., Meshcheryakov, Vladimir I.

“…The effect of the electron–acceptor substituent CF3SO2 at the imine nitrogen atom on the basicity and the electron distribution in N,N‐alkylformamidines (1, 2,…”
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Synthesis, Molecular Structure, Conformational Analysis, and Chemical Properties of Silicon-Containing Derivatives of Quinolizidine by Lazareva, Nataliya F, Shainyan, Bagrat A, Schilde, Uwe, Chipanina, Nina N, Oznobikhina, Larisa P, Albanov, Alexander I, Kleinpeter, Erich

“…A silicon analog of quinolizidine 3,3,7,7-tetramethylhexahydro-1H-[1,4,2]­oxazasilino­[4,5-d]­[1,4,2]­oxazasilin-9a-yl)­methanol 3 was synthesized. X-ray…”
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Chemo-, regio- and stereospecific addition of amino acids to acylacetylenes: a facile synthesis of new N-acylvinyl derivatives of amino acids by Glotova, Tatyana E., Dvorko, Marina Yu, Ushakov, Igor A., Chipanina, Nina N., Kazheva, Olga N., Chekhlov, Anatolii N., Dyachenko, Oleg A., Gusarova, Nina K., Trofimov, Boris A.

“…The one-pot reaction of natural amino acids (glycine, β-alanine, γ-aminobutyric and ɛ-aminocapronic acids, d, l-valine, d, l-leucine, anthranilic acid) with…”
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Effect of proton donors on the intramolecular coordination C=O→Si-F in (acyloxymethyl)trifluorosilanes. Ab initio, DFT and FTIR study, QTAIM analysis by Chipanina, Nina N., Lazareva, Nataliya F., Aksamentova, Tamara N., Doronina, Evgeniya P., Shainyan, Bagrat A.

“…The intramolecular С=O→Si coordination in H‐complexes of (acetoxymethyl)trifluorosilane and (benzoyloxymethyl)trifluorosilane with proton donors HCl, PhOH,…”
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Bifurcate Hydrogen Bonds. Interaction of Intramolecularly H-Bonded Systems with Lewis Bases by Sidorkin, Valery F, Doronina, Evgeniya P, Chipanina, Nina N, Aksamentova, Tamara N, Shainyan, Bagrat A

“…The structure and the hydrogen bonding in the systems formed by the intramolecularly H-bonded systems, namely, maltol (3-hydroxy-2-methyl-4-pyrone), 5,…”
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The synthesis and structure of bis(pyridine-2-carboxy)difluoro(λ6)- and bis(pyridine-2-carboxy)fluorophenyl(λ5)siliconium by Voronkov, Mikhail G., Grebneva, Ekaterina A., Albanov, Aleksandr I., Trofimova, Olga M., Aksamentova, Tamara N., Chipanina, Nina N., Soldatenko, Anastasiya S., Chernov, Nikolay F.

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UV-induced E/Z isomerization of the electron-rich pyrrole ring containing diketoenols: Theoretical and experimental study by Sigalov, Mark V., Shainyan, Bagrat A., Chipanina, Nina N., Oznobikhina, Larisa P.

“…The Knoevenagel reaction of 2-acetyl-1,3-indandione, dehydroacetic acid, 3-acetyl-4-hydroxy-coumarin and acetyl-barbituric acid with pyrrol-2-carbaldehyde…”
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