Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Violetta G. Dolovanyuk"'
Publikováno v:
Журнал органічної та фармацевтичної хімії, Vol 19, Iss 1, Pp 3-9 (2021)
Aim. To develop a convenient synthetic approach for the preparation of multigram amounts of 4-(trifluoromethoxy)-piperidine and 4-(trifluoromethoxymethyl)piperidine – promising building blocks for medicinal chemistry. Results and discussion. 4-(
Externí odkaz:
https://doaj.org/article/b53720b462db4c03b6498ead4e11fa30
Autor:
Ivan G. Logvinenko, Ivan S. Kondratov, Stanislav O. Pridma, Nataliya A. Tolmachova, Roman N. Morev, Violetta G. Dolovanyuk, Andrii L. Boretskyi, Roman O. Stepaniuk, Serhii A. Trofymchuk, Christian Mück-Lichtenfeld, Constantin G. Daniliuc, Günter Haufe
Publikováno v:
Journal of Fluorine Chemistry. :109990
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df1963cec2447f8710cf64f7aa4dcadf
https://doi.org/10.1016/j.jfluchem.2022.109990
https://doi.org/10.1016/j.jfluchem.2022.109990
Autor:
Violetta G. Dolovanyuk, Constantin G. Daniliuc, Ivan S. Kondratov, Günter Haufe, Stanislav O. Pridma, Anton V. Chernykh, Nataliya A. Tolmachova
Publikováno v:
Chemical communications (Cambridge, England). 54(69)
The reaction of trifluoroaldol acetal and other polyfluoroalkyl β-ketoacetals with ethyl isocyanoacetate was applied for the preparation of hitherto unknown fluorinated amino acids, cis- and trans-3-CF3/C2F5-prolines as well as trans-3-CF2Br/CF2Cl/C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6683253ce471e92d615db39916b22dd1
https://pubmed.ncbi.nlm.nih.gov/30101963
https://pubmed.ncbi.nlm.nih.gov/30101963
Autor:
Nataliya A. Tolmachova, Constantin‐Gabriel Daniliuc, Günter Haufe, Ivan S. Kondratov, Klaus Bergander, Violetta G. Dolovanyuk, Igor I. Gerus
Publikováno v:
European Journal of Organic Chemistry. 2014:2443-2450
The Diels–Alder reactions of ethyl 3-benzamido-2-oxo-6-(trifluoromethyl)-2H-pyran-5-carboxylate with ethyl vinyl ether, 2-methoxypropene, and 1-ethoxypropene were investigated. Under different reaction conditions, intermediate oxabicyclo[2.2.2]octe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7594351a9af60b5330077dabea1fbf99
https://doi.org/10.1002/ejoc.201301485
https://doi.org/10.1002/ejoc.201301485
Autor:
Nataliya A. Tolmachova, Violetta G. Dolovanyuk, Klaus Bergander, Günter Haufe, Ivan S. Kondratov, Vitaliy V. Polovinko, Igor I. Gerus
Publikováno v:
Synthesis. 2011:1149-1156
A series of 3-amino-6-(trifluoromethyl)-5,6-dihydropyridin-2(1H)-ones and 6-hydroxy-5,6-dihydropyridin-2(1H)-ones were hydrogenated to give the corresponding piperidinones. These lactams were used for the synthesis of novel trifluoromethyl-containing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56ad8d751e609699cef1fa3763673c64
https://doi.org/10.1055/s-0030-1258448
https://doi.org/10.1055/s-0030-1258448
Autor:
Nataliya A. Tolmacheva, Violetta G. Dolovanyuk, Günter Haufe, Ivan S. Kondratov, Igor I. Gerus
Publikováno v:
European Journal of Organic Chemistry. 2009:5012-5019
New δ-(polyfluoroalkyl)-δ-hydroxy-α-amino acids were synthesized from the corresponding starting 3-(benzoylamino)-6-(polyfluoroalkyl)-2H-pyran-2-ones. The key step of the synthesis was the hydrogenation of the pyrone ring. Stereoselectivity and yi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b9e368c43a62f1e696238d4ba685521
https://doi.org/10.1002/ejoc.200900684
https://doi.org/10.1002/ejoc.200900684
Autor:
Violetta G. Dolovanyuk, Nataliya A. Tolmachova, Constantin‐Gabriel Daniliuc, Ivan S. Kondratov, Igor I. Gerus, Guenter Haufe
Publikováno v:
ChemInform. 46
The presence of the trifluoromethyl group is proposed to be the main factor in controlling the regioselectivity of the initial cycloaddition.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c25ae8eb389fb858d5dde574a82c8449
https://doi.org/10.1002/chin.201534033
https://doi.org/10.1002/chin.201534033
Autor:
Constantin‐Gabriel Daniliuc, Ivan S. Kondratov, Nataliya A. Tolmachova, Violetta G. Dolovanyuk, Klaus Bergander, Igor I. Gerus, Günter Haufe
Publikováno v:
ChemInform. 46
Diels—Alder reaction of pyrone (I) with alkoxy alkenes at 120 °C provides the corresponding cycloadducts (III) and (IV).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd5cd2b2676cda79ee3219a2e04445d2
https://doi.org/10.1002/chin.201506087
https://doi.org/10.1002/chin.201506087
Autor:
Klaus Bergander, Ivan S. Kondratov, Violetta G. Dolovanyuk, Nataliya A. Tolmachova, Vitaliy V. Polovinko, Igor I. Gerus, Guenter Haufe
Publikováno v:
ChemInform. 42
6-(Trifluoromethyl)pyridinones and related 6-hydroxydihydropyridinones are obtained in high or complete cis-selectivity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::681a8a835466cd18d93243303790736c
https://doi.org/10.1002/chin.201133137
https://doi.org/10.1002/chin.201133137
Autor:
Roland Fröhlich, Klaus Bergander, Violetta G. Dolovanyuk, Günter Haufe, Nataliya A. Tolmachova, Ivan S. Kondratov, Igor I. Gerus
Publikováno v:
Organic & Biomolecular Chemistry. 10:8778
The hitherto unreported reactions of β-alkoxyvinyl polyfluoroalkyl ketones with ethyl isocyanoacetate and equimolar amounts of potassium-tert-butoxide proceeded mainly in the β-position of the α,β-unsaturated ketones in cases of α-nonsubstituted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa465846e01daac4c560c445dffc296e
https://doi.org/10.1039/c2ob26176f
https://doi.org/10.1039/c2ob26176f