Search Results - "Tkachenko, Yu N"

Synthesis of dicationic hetarylmethylimidazolium salts via the reaction of N, N′-diaryl-4-chloromethylimidazolium chlorides with N-heterocycles by Shevchenko, M. A., Pasyukov, D. V., Tkachenko, Yu. N., Minyaev, M. E., Chernyshev, V. M.

“…The reaction between N, N ′-diaryl-4-chloromethylimidazolium chlorides and N-nucleophiles, viz. various azoles and azines, which proceeds via nucleophilic…”
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Cyclization of 5,6-Diarylpyrrolo[3,4-d]pyrimidine-2,4-diones into Pyrrolo[1,2-f]phenanthridine Derivatives: Intramolecular C–H Arylation under Ru/NHC Catalysis by Tkachenko, Yu. N., Shevchenko, M. A., Lavrentev, I. V., Pasyukov, D. V., Minyaev, M. E., Chernyshev, V. M.

“…The cyclization of 5,6-diarylpyrrolo[3,4- d ]pyrimidine-2,4-diones containing a halogen atom in the ortho -position of one of the aryl rings, proceeding as…”
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Carbon Stock in Sandy Soils of Pine Forests in the West of Russia by Kuznetsova, A. I., Lukina, N. V., Gornov, A. V., Gornova, M. V., Tikhonova, E. V., Smirnov, V. E., Danilova, M. A., Tebenkova, D. N., Braslavskaya, T. Yu, Kuznetsov, V. A., Tkachenko, Yu. N., Genikova, N. V.

“…A comparative assessment of carbon accumulation in the soils of pine forests in western Russia (the Republic of Karelia, the Karelian Isthmus, and Bryansk…”
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Nitro derivatives of pyrrolo[3,2-d]pyrimidine-2,4-diones: Synthesis of amines and new polynuclear heterocycles based thereon by Tkachenko, Yu. N., Popov, L. D., Pozharskii, A. F., Borodkin, S. A., Levchenkov, S. I.

“…The nitration of 1,3-dimethylpyrrolo[3,2- d ]pyrimidine-2,4-diones under different conditions led to the formation of their 6(7)-mono- and 6,7-dinitro…”
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Protolytic and complexation properties of the cyclic thiosemicarbazone ligand by Popov, L. D., Gazieva, G. A., Kravchenko, A. N., Tkachenko, Yu. N., Askalepova, O. I., Levchenkov, S. I., Karpova, T. B., Tupolova, Yu. P., Kogan, V. A.

“…The acid-base properties of the thiourea based cyclic thiosemicarbazone have been studied. The tautomerism and complex formation ability of the…”
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Synthesis, structure, and properties of a new phosphorus-containing Schiff’s base, a derivative of pyrazole-5-one by Popov, L. D., Borodkin, S. A., Scherbakov, I. N., Tkachenko, Yu. N., Aleksandrov, G. G., Beloborodov, S. S., Zubenko, A. A., Kogan, V. A., Maevskii, O. V.

“…A new Schiff’s base and its salt have been prepared from 2-aminophenyl(triphenyl)phosphonium chloride and 5-hydroxy-3-methyl-1-phenyl-4-formylpyrazole. The…”
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Synthesis, photochromic properties, and complex formation with metal ions of hydrazones based on a spiropyran of oxaindane series by Popov, L. D., Shcherbakov, I. A., Bulanov, A. O., Shasheva, E. Yu, Tkachenko, Yu. N., Kobeleva, O. I., Vyalova, T. M., Barachevskii, V. A.

“…A series of hydrazones based on a new spiropyran oxaindane series was synthesized. The compounds were found to possess photochromism and are characterized by a…”
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Synthesis, IR, UV/vis-, (1)H NMR and DFT study of chelatophore functionalized 1,3-benzoxazinone spiropyrans by Bulanov, Antony O, Popov, Leonid D, Shcherbakov, Igor N, Kogan, Victor A, Barachevsky, Valerii A, Lukov, Vladimir V, Borisenko, S N, Tkachenko, Yu N

“…Six novel functionalized spiropyran's derivatives of 2H-1,3-benzoxazinone series were synthesized by introducing the substituents with chelating ability into…”
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Synthesis, structure, and properties of new phosphorus Schiff bases by Popov, L. D., Borodkin, S. A., Shcherbakov, I. N., Tkachenko, Yu. N., Kogan, V. A.

“…A series of new Schiff bases has been synthesized on the basis of (2-aminophenyl)triphenyl-phosphonium chloride and substituted salicylaldehydes. The structure…”
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Synthesis, structure, and properties of phosphorus-containing bis(amidrazones) by Popov, L. D., Shcherbakov, I. N., Tkachenko, Yu. N., Borodkin, S. A., Kogan, V. A.

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Pyrrolopyrimidines. 4. A convenient method for the production of 6-(2-aminovinyl)-5-nitropyrimidines and their transformation into pyrrolo[3,2-d]pyrimidines by Tkachenko, Yu. N., Tsupak, E. B., Pozharskii, A. F.

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Pyrrolopyrimidines. 3. 5-Amino-1,3-dimethylpyrrolo-[3,2-d]pyrimidine-2,4-dione by Tkachenko, Yu. N., Tsupak, E. B., Pozharskii, A. F.

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Pyrrolopyrimidines. 1. Electrophilic substitution reactions of 1,3-dimethylpyrrolo[3,2-d]pyrimidine-2,4-dione by Tsupak, E. B., Tkachenko, Yu. N., Pozharskii, A. F.

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Pyrrolopyrimidines. 2. Synthesis and oxidative conversions of 5-amino-1,3-Dimethylpyrrolo[3, 2-d]pyrimidine-2, 4-diones by Tkachenko, Yu. N., Tsupak, E. B., Pozharskii, A. F.

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3,4-Diacetylhexane-2,5-dione—an effective synthon for synthesis of substituted azulene heteroanalogs by cyclocondensation reactions by Olekhnovich, E. P., Boroshko, S. L., Tkachenko, Yu. N., Pozharskii, A. F., Tsupak, E. B., Zhadanov, Yu. A., Olekhnovich, L. P.

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Pyrano[4,3-d]pyrimidinium salts: 1. Reactions with N-nucleophiles by Tsupak, E. B., Shevchenko, M. A., Kostrub, V. V., Tkachenko, Yu. N.

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Pyrano[4,3-d]pyrimidinium salts: 2. Reactions of 1,3-dimethyl-2,4-dioxopyrano[4,3-d]pyrimidinium salts with hydrazine by Kostrub, V. V., Tsupak, E. B., Tkachenko, Yu. N., Shevchenko, M. A.

“…Reactions of 5-aryl- and 5,7-diaryl-1,3-dimethyl-2,4-dioxopyrano[4,3- d ]pyrimidinium salts with hydrazine were studied. In the former case, the reaction…”
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