Search Results - "Andriyankova, Ludmila V."

(Imidazol‐2‐yl)methyl‐1,3‐propanediones: Regioselective C–H Functionalization of the Imidazole Ring by Acylacetylene/Aldehyde Pairs by Trofimov, Boris A., Andriyankova, Ludmila V., Nikitina, Lina P., Belyaeva, Kseniya V., Mal'kina, Anastasiya G., Bagryanskaya, Irina Yu, Afonin, Andrei V., Ushakov, Igor A.

“…The metal‐free regioselective C‐2–H functionalization of 1‐substituted imidazoles has been effected by a cascade reaction with aromatic or heteroaromatic…”
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Ring-Opening of Pyridines with Acyl­acetylenes and Water: Straightforward Access to 5-[(Z)-Acylethenyl]amino-2,4-pentadienals by Trofimov, Boris A., Andriyankova, Ludmila V., Belyaeva, Kseniya V., Nikitina, Lina P., Afonin, Andrei V., Mal'kina, Anastasiya G.

“…Pyridines undergo exceptionally facile ring opening under the action of acylacetylenes (e.g., benzoylphenylacetylene, furoylphenylacetylene, and…”
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Stereoselective Tandem Ring Opening of Imidazoles with Electron-Deficient Acetylenes and Water: Synthesis of Functionalized (Z,Z)‑1,4-Diaza-2,5-dienes by Trofimov, Boris A, Andriyankova, Ludmila V, Nikitina, Lina P, Belyaeva, Kseniya V, Mal’kina, Anastasia G, Sobenina, Lubov N, Afonin, Andrei V, Ushakov, Igor A

“…1-Substituted imidazoles undergo exceptionally facile stereoselective ring opening under the influence of electron-deficient acetylenes and water (equimolar…”
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Three-component reaction of imidazoles, cyanophenylacetylene, and chalcogens: stereoselective synthesis of 3-alkenyl-2-imidazolethiones and -selones by Belyaeva, Kseniya V., Andriyankova, Ludmila V., Nikitina, Lina P., Mal'kina, Anastasiya G., Afonin, Andrei V., Ushakov, Igor' A., Bagryanskaya, Irina Yu, Trofimov, Boris A.

“…The three-component reaction of 1-substituted imidazoles, cyanophenylacetylene, and elemental sulfur or selenium proceeds readily (for sulfur at room…”
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Three-component reaction between imidazoles, isocyanates, and cyanophenylacetylene: a short-cut to N-(Z)-alkenylimidazole-2-carboxamides by Belyaeva, Kseniya V., Andriyankova, Ludmila V., Nikitina, Lina P., Mal’kina, Anastasiya G., Afonin, Andrei V., Trofimov, Boris A.

“…1-Substituted imidazoles, isocyanates, and cyanophenylacetylene react under mild (rt), non-catalytic solvent-free conditions to give…”
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C(2)-Functionalization of 1-substituted imidazoles with cyanoacetylenes and aromatic or heteroaromatic aldehydes by Trofimov, Boris A., Andriyankova, Ludmila V., Belyaeva, Kseniya V., Mal’kina, Anastasiya G., Nikitina, Lina P., Dyachenko, Oleg A., Kazheva, Olga N., Alexandrov, Grigorii G., Shilov, Gennadii V., Afonin, Andrei V., Ushakov, Igor’ A.

“…Substituted imidazoles (substituents are Me, Et, i-Bu, n-Hexyl, (CH 2) 2S–Bu- n, Ph, Bn) react smoothly (room temperature, without catalyst and solvent) with…”
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Vinylation of trialkylamines with acyl- and cyanoacetylenes via C–N bond cleavage in the presence of water by Belyaeva, Kseniya V., Andriyankova, Ludmila V., Mal’kina, Anastasiya G., Volostnykh, Olga G., Nikitina, Lina P., Afonin, Andrei V., Ushakov, Igor A., Klyba, Lyudmila V., Trofimov, Boris A.

“…Trialkylamines react with acyl- and cyanoacetylenes in the presence of water (90–100°C, 37–43h) to give functionalized N,N-dialkyl-vinylamines, the products of…”
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2,4-Diphenylpyrido[2,1-a]isoquinolinium nitrite from the domino reaction between isoquinoline, 1,3-diphenylprop-2-yn-1-one and nitromethane by Belyaeva, Kseniya V., Afonin, Andrei V., Andriyankova, Ludmila V., Volostnykh, Olga G., Nikitina, Lina P., Mal’kina, Anastasiya G., Ushakov, Igor A., Smirnov, Vladimir I., Klyba, Lyudmila V., Trofimov, Boris A.

“…The three-component reaction between isoquinoline, 1,3-diphenylprop-2-yn-1-one and nitromethane (90–100°C, 26h) affords 2,4-diphenyl-…”
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Cascade cyclization of quinoline and quinoxaline with nitriles of α,β-acetylenic γ-hydroxy acids by Andriyankova, Ludmila V., Mal’kina, Anastasiya G., Afonin, Andrei V., Trofimov, Boris A.

“…Quinoline and quinoxaline react regiospecifically and stereoselectively with the nitriles of α,β-acetylenic γ-hydroxy acids to form new annelated heterocyclic…”
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Ring-opening of pyridines and imidazoles with electron-deficient acetylenes: En route to metal-free organic synthesis by Trofimov, Boris A., Belyaeva, Kseniya V., Andriyankova, Ludmila V., Nikitina, Lina P., Mal’kina, Anastasiya G.

“…[Display omitted] The article is focused on the recently developed methodology for the efficient synthesis of diverse highly unsaturated previously unknown…”
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C2-Functionalization of 1-Substituted Imidazoles with Aldehydes and Electron-Deficient Acetylenes: A Novel Three-Component Reaction by Trofimov, Boris A., Andriyankova, Ludmila V., Belyaeva, Kseniya V., Mal'kina, Anastasiya G., Nikitina, Lina P., Afonin, Andrei V., Ushakov, Igor' A.

“…A novel three‐component reaction between 1‐substituted imidazoles, aldehydes, and electron‐deficient acetylenes proceeds under mild conditions (20–25 °C, no…”
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Reaction of imidazole derivatives with trifluoromethylated arylacetylenes by Trofimov, Boris A., Andriyankova, Ludmila V., Nikitina, Lina P., Belyaeva, Kseniya V., Mal’kina, Anastasiya G., Afonin, Andrei V., Ushakov, Igor A., Kobychev, Vladimir B., Muzalevskiy, Vasily M., Nenajdenko, Valentine G.

“…[Display omitted] •Nucleophilic addition of imidazoles to CF3-acetylenes leads to Z-isomers.•Mixture of β- and α- vinylated imidazoles and benzimidazoles is…”
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A three-component reaction between 1-substituted-2-methylimidazoles, cyanophenylacetylene, and various aldehydes: stereoselective synthesis of (Z)-(2-cyano-1-phenyl)vinyl ethers of 2-(2-hydroxyalkyl)imidazoles by Trofimov, Boris A., Andriyankova, Ludmila V., Nikitina, Lina P., Belyaeva, Kseniya V., Mal’kina, Anastasiya G., Afonin, Andrei V., Ushakov, Igor’ A.

“…A three-component reaction between 1-substituted-2-methylimidazoles (1-Me, Bn), cyanophenylacetylene, and aliphatic (Me, i-Pr, n-Bu) and aromatic (Ph, 4-CN-,…”
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Insertion of 1,3-diphenylprop-2-yn-1-one into imidazo[4,5-b]pyridines in the presence of water: one-pot synthesis of pyrido[2,3-b][1,4]diazocin-9-ones by Trofimov, Boris A., Nikitina, Lina P., Belyaeva, Kseniya V., Andriyankova, Ludmila V., Mal’kina, Anastasiya G., Bagryanskaya, Irina Yu, Afonin, Andrei V., Ushakov, Igor A.

“…[Display omitted] 1,3-Diphenylprop-2-yn-1-one is inserted into 3-substituted imidazo[4,5-b]pyridines upon refluxing in MeCN in the presence of equimolar amount…”
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The reaction of 1,5,6-trimethylbenzimidazole with 1,3-diphenylprop-2-yn-1-one and water: en route to β-amino enones and benzodiazocinones by Belyaeva, Kseniya V., Andriyankova, Ludmila V., Nikitina, Lina P., Afonin, Andrei V., Ushakov, Igor A., Mal’kina, Anastasiya G., Trofimov, Boris A.

“…Refluxing the mixture of 1,5,6-trimethylbenzimidazole, 1,3-diphenylprop-2-yn-1-one and water in MeCN for 70h affords…”
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(Imidazol-2-yl)methyl-1,3-propanediones: Regioselective C-H Functionalization of the Imidazole Ring by Acylacetylene/Aldehyde Pairs by Trofimov, Boris A., Andriyankova, Ludmila V., Nikitina, Lina P., Belyaeva, Kseniya V., Mal'kina, Anastasiya G., Bagryanskaya, Irina Yu, Afonin, Andrei V., Ushakov, Igor A.

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Annelation of Benzimidazoles with α,β-Acetylenic γ-Hydroxyacid Nitriles and Hydrolytic Rearrangement of the Cycloadducts on Alumina by Trofimov, Boris A., Andriyankova, Ludmila V., Mal'kina, Anastasiya G., Belyaeva, Kseniya V., Nikitina, Lina P., Dyachenko, Oleg A., Kazheva, Olga N., Chekhlov, Anatolii N., Shilov, Gennadii V., Afonin, Andrei V., Ushakov, Igor' A., Baikalova, Ludmila V.

“…1‐Substituted benzimidazoles are readily annelated regio‐ and stereoselectively with α,β‐acetylenic γ‐hydroxyacidnitriles under mild conditions (20–25 °C, no…”
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Stereoselective annelation of 3-substituted imidazo[4,5-b]pyridines with cyanoacetylenic alcohols and domino rearrangement of the adducts by Trofimov, Boris A., Andriyankova, Ludmila, Nikitina, Lina, Belyaeva, Kseniya, Malkina, Anastasiya, Dyachenko, Oleg, Kazheva, Olga, Chekhlov, Anatolii, Afonin, Andrei

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Regio- and stereoselective annelation of phenanthridines with α,β-acetylenic γ-hydroxyacid nitriles by Andriyankova, Ludmila V., Mal'kina, Anastasiya G., Nikitina, Lina P., Belyaeva, Kseniya V., Ushakov, Igor A., Afonin, Andrei V., Nikitin, Mikhail V., Trofimov, Boris A.

“…Phenanthridines (3,4-, 7,8-benzoquinolines and methyloctahydrophenanthridine) are annelated regio- and stereoselectively with α,β-acetylenic γ-hydroxyacid…”
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A facile annelation of pyridines with nitriles of α,β-acetylenic γ-hydroxyacids by Trofimov, Boris A, Andriyankova, Ludmila V, Zhivet'ev, Sergei A, Mal'kina, Anastasiya G, Voronov, Vladimir K

“…Pyridines are readily annelated with nitriles of α,β-acetylenic γ-hydroxyacids under mild conditions (ambient temperature, no catalyst, no solvent) to give new…”
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