Výsledky vyhledávání - "M. N. Krivchun"

Synthesis and Structure of the Copper(II) Chloride Complex with (2-Bromophenyl)thioacetic Acid Morpholide

Autor: Alexander V. Belyakov, M. N. Krivchun, E. A. Popova, Mikhail L. Petrov

Publikováno v: Russian Journal of General Chemistry. 90:858-862

The cyclization of (2-bromophenyl)thioacetic acid morpholide to 2-(morpholin-4-yl)-1-benzothiophene in the presence of copper(II) chloride has been found to involve intermediate formation of a complex consisting of two thioamide molecules and one cop

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba50dab07f1a795ec40c71de7d91b713
https://doi.org/10.1134/s1070363220050163

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Phosphorylation of Benzimidazole-2-thiones by Chloroethynylphosphonate

Autor: Yu. L. Piterskaya, D. D. Kartsev, D. M. Egorov, M. N. Krivchun, V. A. Polukeev, Albina V. Dogadina

Publikováno v: Russian Journal of General Chemistry. 88:1824-1831

The reaction of chloroethynylphosphonates with N-substituted benzimidazole-2-thiones proceeded chemo- and regioselectively with the formation of cyclic zwitterions, namely alkyl (9H-benzo[4,5]imidazo[2,1-b]-thiazol-3-yl-4-ium)phosphonates. Chemo- and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60e987818f0251fe1862c346d900857b
https://doi.org/10.1134/s1070363218090104

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Synthesis of trivalent phosphorus derivatives by light-induced dibromophosphination of akenes

Autor: M. N. Krivchun, A. V. Khramchikhin

Publikováno v: Russian Journal of General Chemistry. 87:1527-1530

Light-induced dibromophosphination of alkenes was studied. Dehydrobromination of the synthesized bromoalkylphosphonous dibromides gave the corresponding dibromophosphinoalkenes which were converted into alkenylphosphonous acids and their cyclic ester

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48c7f94a4b4b5b2c849affa8b8a2f30b
https://doi.org/10.1134/s1070363217070131

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A new approach to the synthesis of 1,2,4-triazolo[3,4-b][1,3,4]thiadiazines

Autor: M. A. Skryl’nikova, A. V. Khramchikhin, M. N. Krivchun

Publikováno v: Russian Journal of General Chemistry. 87:1321-1322

Intramolecular cyclization of 5-methyl-4-(3-phenylprop-2-yn-1-yl)-4H-1,2,4-triazole-3-thiol led to the formation of 7-benzylidene-3-methyl-6,7-dihydro-5H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f0ffe48c32d1648c255dff00089cb4c
https://doi.org/10.1134/s1070363217060329

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Synthesis of 6-chlorotetrazolo[1,5-a]quinazoline and 6-chloro-4,5-dihydrotetrazolo[1,5-a]quinazoline

Autor: M. A. Skryl’nikova, M. N. Krivchun, A. V. Khramchikhin

Publikováno v: Russian Journal of General Chemistry. 87:885-886

Reaction of 5-aminotetrazole triethylammonium salt and 2-fluoro-6-chlorobenzaldehyde resulted in the formation of 6-chlorotetrazolo[1,5-a]quinazoline instead of the expected azomethine. Hydrogenation of the obtained quinazoline afforded 6-chloro-4,5-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::461f5ac3d717b1c2d252f98ed8edc5a6
https://doi.org/10.1134/s1070363217040375

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Synthesis and NMR study of cyclohexylphosphonates

Autor: V. I. Zakharov, K. S. Titov, M. N. Krivchun, B. I. Ionin

Publikováno v: Russian Journal of General Chemistry. 81:481-487

Cyclohexyl-, 2-chlorocyclohex-1-yl and cyclohexen-1-ylphosphonic acids chlorides and fluorides were synthesized and studied by the 1H, 13C, 19F, and 31P NMR methods with the use of correlation spectroscopy and quantum-chemical calculations.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fe19c0ca606aaf8ed8b3f896a1a6bc01
https://doi.org/10.1134/s1070363211030066

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