Search Results - "Keiko, N. A."

[alpha],[beta]-Unsaturated Aldehydes in the Synthesis of Five-Membered Heterocyclic Compounds with One Heteroatom: Recent Advances from Developments in Metal- and Organocatalysis by Keiko, N A, Vchislo, N V

“…The ever-increasing interest in the chemistry of five-membered heterocyclic compounds is due to their paramount importance in such essential fields as…”
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Synthesis and antimicrobial activity of new aldehydes and acetals by Keiko, N. A, Stepanova, L. G, Kleptsova, E. A, Vdovina, G. P, Odegova, T. F

“…Methods for the synthesis of new aldehydes and acetals have been developed. The antimicrobial activity of the synthesized compounds against Staphylococcus…”
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Synthesis of Diheteroatomic Five-Membered Heterocyclic Compounds from α,β-Unsaturated Aldehydes by Keiko, N. A., Vchislo, N. V.

“…The recent increase in interest in the chemistry of azoles has been owing to their paramount importance in several essential fields of research, such as…”
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Condensation of 2-alkoxypropenals with N,N- and N,O-1,2-binucleophiles. A route to 2-(1'-alkoxyvinyl)imidazo-lidines and -oxazolidines by Keiko, N. A, Vchislo, N. V, Stepanova, L. G, Larina, L. I, Chuvashev, Yu. A, Funtikova, E. A

“…Condensation of 2-ethoxypropenal with diaminoethylene in different solvents (CHCl₃, MeCN, H₂O, DMSO) at room temperature gives an equilibrium mixture (1:1-1.5)…”
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α,β-Unsaturated Aldehydes in the Synthesis of Five-Membered Heterocyclic Compounds with One Heteroatom: Recent Advances from Developments in Metal- and Organocatalysis by Keiko, N. A., Vchislo, N. V.

“…The ever‐increasing interest in the chemistry of five‐membered heterocyclic compounds is due to their paramount importance in such essential fields as…”
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Synthesis of Diheteroatomic Five-Membered Heterocyclic Compounds from [alpha],[beta]-Unsaturated Aldehydes by Keiko, N A, Vchislo, N V

“…The recent increase in interest in the chemistry of azoles has been owing to their paramount importance in several essential fields of research, such as…”
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Reaction of 2-Alkoxypropenals with 2-Aminoethanethiol and Ring-Chain Tautomerism of the Resulting 2-(1-Alkoxyvinyl)-1,3-thiazolidines by Keiko, N. A., Funtikova, E. A., Stepanova, L. G., Larina, L. I.

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Reactions of 2-Butylsulfanyl-2-alkenals with Alcohols and Water by Keiko, N. A., Chuvashev, Yu. A., Stepanova, L. G., Larina, L. I.

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Reaction of 2-Alkoxypropenals with α-Hydroxyamino Oximes and 1,2-Bis(hydroxyamino)cyclohexane by Keiko, N. A., Funtikova, E. A., Larina, L. I., Sarapulova, G. I., Mazhukin, D. G., Rybalova, T. V., Tikhonov, A. Ya

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Synthesis of 2-(1-Alkoxyvinyl)oxazolidines by Condensation of 2-Alkoxypropenals with 2-Aminoalkanols and Ring-Chain Tautomerism of the Products by Keiko, N. A., Funtikova, E. A., Stepanova, L. G., Chuvashev, Yu. A., Larina, L. I.

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2-alkoxypropenals as synthetic equivalents of methylglyoxal in the synthesis of heterocycles by Keiko, N. A., Vchislo, N. V., Larina, L. I.

“…One-pot synthesis of 2-methylquinoxaline, 3-hydroxy-2-methylimidazo[1,2- a ]pyridine, and 2-methyl-3,7-dihydroimidazo[1,2- a ]pyrazin-3-one via cycloaddition…”
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Synthesis of 3,3-Dialkoxy-2-trialkylsiloxypropenes by Keiko, N. A., Kuznetsova, T. A., Chuvashev, Yu. A., Sherstyannikova, L. V., Larina, L. I., Voronkov, M. G.

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Hydrolysis of 2-alkoxyalk-2-enals by Mamashvili, T. N., Keiko, N. A., Sarapulova, G. I., Voronkov, M. G.

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Microwave-initiated hydroamination of 2-ethoxypropenal with secondary amines by Keiko, N. A., Verochkina, E. A., Larina, L. I.

“…Reactions of 2-ethoxyprop-2-enal with cycloaliphatic secondary amines (morpholine, piperidine, pyrrolidine) follow 1,4- or 1,2-addition pattern with subsequent…”
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Kinetics of dimerization of 2-alkylthiopropenals by Keiko, N. A., Stepanova, L. G., Chuvashev, Yu. A., Larina, L. I., Voronkov, M. G.

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Kinetic and thermodynamic control in the synthesis of methylglyoxal thioacetals from 2-ethoxypropenal by Keiko, Nataliya A., Funtikova, Evgeniya A., Stepanova, Lyudmila G., Chuvashev, Yurii A., Larina, Lyudmila I., Voronkov, Mikhail G.

“…Under kinetically controlled conditions, the addition of organylthiols to 2-ethoxypropenal follows the Markovnikov rule to give 2-ethoxy-2-organylthiopropanals…”
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Reactions of alcohols with α-alkoxyacroleins at room temperature by Keiko, N. A., Chuvashev, Yu. A., Stepanova, L. G., Voronkov, M. G.

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Methylglyoxal bis-(N,N-dimethylhydrazone): Synthesis and some reactions by Keiko, N. A., Vchislo, N. V., Larina, L. I., Chernyshev, K. A.

“…Methods were proposed for the synthesis of the methylglyoxal 1,2-bis-( N,N -dimethylhydrazone). A possibility was shown for the first time of its participation…”
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Regioselectivity of the hydrolysis of 2-(1-alkoxyvinyl)-substituted imidazolidines, 1,3-thiazolidines, and 1,3-oxazolidines by Keiko, N. A., Funtikova, E. A., Vchislo, N. V., Larina, L. I., Frolov, Yu. L.

“…2-(1-Alkoxyvinyl)-1,3-thiazolidines reacted with H 2 O or D 2 O in the presence of 105 mol % of p -toluenesulfonic acid or trifluoroacetic acid (20°C, 1 h) to…”
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Multistep nucleophilic substitution of the halogen atom in 2-halo-2-alkenals by Rulev, A. Yu, Zinchenko, S. V., Keiko, N. A., Voronkov, M. G.

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