Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Zoia A. Sizova"'
Publikováno v:
Molecules, Vol 28, Iss 12, p 4822 (2023)
Modification of 5-aryl-4-trifluoroacetyltriazoles at the NH-moiety was investigated. Screening of the alkylation conditions revealed that using Na2CO3 as a base and DMF as a solvent of 2-substituted triazoles can be preferentially prepared in up to 8
Externí odkaz:
https://doaj.org/article/eb3bb4458ac2481681f0a6107a027f64
Publikováno v:
Molecules, Vol 27, Iss 24, p 8822 (2022)
Halogenation of 2-trifluoromethylindole afforded 3-chloro-, 3-bromo- and 3-iodo derivatives in up to 98% yield. Methyl-, benzyl- and tosyl-groups can be installed at the nitrogen atom of prepared indoles in high yields by base catalyzed reaction with
Externí odkaz:
https://doaj.org/article/91add31b85ce4691a8368497fbe1ecb0
Publikováno v:
International Journal of Molecular Sciences, Vol 23, Iss 23, p 14522 (2022)
A detailed study of the reaction of CF3-ynones with NaN3 was performed. It was found that the reaction permits the selective synthesis of either 4-trifluoroacetyltriazoles or 5-CF3-isoxazoles. The chemoselectivity of the reaction was switchable via a
Externí odkaz:
https://doaj.org/article/c26a07707715496796cc2f7aa1062227
Publikováno v:
Molecules, Vol 26, Iss 23, p 7365 (2021)
The catalytic olefination reaction of 2-nitrobenzaldehydes with CF3CCl3 afforded stereoselectively trifluoromethylated ortho-nitrostyrenes in up to 88% yield. The reaction of these alkenes with pyrrolidine permits preparation of α-CF3-β-(2-nitroary
Externí odkaz:
https://doaj.org/article/9e8b3757e8ff4e399d65126908e622ad
Publikováno v:
Molecules, Vol 26, Iss 16, p 5084 (2021)
The reaction of α-CF3-β-(2-nitroaryl) enamines with benzaldehydes afforded effectively α,β-diaryl-CF3-enones having nitro group. Subsequent reduction of nitro group by NH4HCO2-Pd/C system initiated intramolecular cyclization to give 2-CF3-3-benzy
Externí odkaz:
https://doaj.org/article/0bd7c02548c9445a9eeda508cd9015ca
Autor:
Vasiliy M. Muzalevskiy, Zoia A. Sizova, Kseniya V. Belyaeva, Boris A. Trofimov, Valentine G. Nenajdenko
Publikováno v:
Molecules, Vol 24, Iss 19, p 3594 (2019)
The reaction of pyridines with trifluoroacetylated acetylenes was investigated. It was found that the reaction of various pyridines with two molecules of CF3CO-acetylenes proceeds under mild metal-free conditions. As a result, efficient stereoselecti
Externí odkaz:
https://doaj.org/article/0d9c14e8fe8d49c4a42e92991d29257a
Publikováno v:
Molecules; Volume 28; Issue 12; Pages: 4822
Modification of 5-aryl-4-trifluoroacetyltriazoles at the NH-moiety was investigated. Screening of the alkylation conditions revealed that using Na2CO3 as a base and DMF as a solvent of 2-substituted triazoles can be preferentially prepared in up to 8
Autor:
Vasiliy V. Panyushkin, Zoia A. Sizova, Valentine G. Nenajdenko, Vyacheslav A. Chertkov, Vasiliy M. Muzalevskiy, Victor N. Khrustalev
Publikováno v:
The Journal of Organic Chemistry. 86:2385-2405
An efficient pathway toward a novel class of trifluoromethyl building blocks was elaborated. The reaction of α-CF3-enamines with arylaldehydes resulted in direct synthesis of α,β-diaryl-CF3-enones isolated in up to 93% yield as E-isomers. The poss
Publikováno v:
Organic & Biomolecular Chemistry. 19:4303-4319
α-CF3-enamines can be prepared by the reaction of pyrrolidine with the corresponding haloalkenes. The prepared enamines react with 2-nitrobenzaldehydes to give ortho-nitro-substituted α,β-diaryl-CF3-enones highly stereoselectively in up to 88% yie
Autor:
Valentine G. Nenajdenko, Alexey V. Shastin, Arstan I. Diusenov, Vasiliy M. Muzalevskiy, Zoia A. Sizova
Publikováno v:
European Journal of Organic Chemistry. 2020:4161-4166