Zobrazeno 1 - 10 of 85 pro vyhledávání: '"A. I. Zinin"'
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Trifluoroacetic Acid Promoted Ring Contraction in 2,3-Di-O-silylated O-Galactopyranosides and Hemiacetals
Autor: Leonid O. Kononov, Polina I. Abronina, Nelly N. Malysheva, Alexander I. Zinin, Maxim Y. Karpenko, Natalya G. Kolotyrkina
Publikováno v: Synlett. 33:473-477
A pyranose ring contraction of 2,3-di-O-silylated O-galactopyranosides with retention of aglycone promoted by anhydrous trifluoroacetic acid (TFA) in CH2Cl2 was demonstrated for the first time. In addition, TFA-promoted pyranose ring contraction of 2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1ef8703586a8b318d7de761a9122cb6
https://doi.org/10.1055/a-1730-9458
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8
Catalyst-free regioselective acetylation of primary hydroxy groups in partially protected and unprotected thioglycosides with acetic acid
Autor: Nelly N. Malysheva, Elena V. Stepanova, Alexander I. Zinin, Polina I. Abronina, Leonid O. Kononov, Natalya G. Kolotyrkina
Publikováno v: RSC Advances. 10:36836-36842
Highly regioselective acetylation of primary hydroxy groups in thioglycoside derivatives with gluco- and galacto-configurations was achieved by treatment with aqueous or anhydrous acetic acid (60–100% AcOH) at elevated temperatures (80–118 °C),
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b789d35a60c7c9926eda2bccb7000110
https://doi.org/10.1039/d0ra07360a
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10
New methods for the synthesis of 2-(2,2,2-trichloroethoxy)-(3,4,6-tri-O-acetyl-1,2-dideoxy-α-D-glucopyrano)-[2,1-d]-2-oxazoline and its use for stereo-, chemo- and regioselective glycosylation
Autor: Sergey S. Pertel, Sergey A. Seryi, Elena S. Kakayan, Alexander I. Zinin, Leonid O. Kononov
Publikováno v: Carbohydrate research. 520
New methods for the synthesis of the title oxazoline 2 from the corresponding 2-deoxy-2-(2,2,2- trichloroethoxycarbonylamino)glucosyl bromide were developed. The target 2-(2,2,2-trichloroethoxy) gluco-[2,1-d]-2-oxazoline 2 can be synthesized under co
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7bd499de8c39bf59209f8a3904b6b30
https://pubmed.ncbi.nlm.nih.gov/35868150
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