Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Yulia A. Konik"'
Autor:
Yulia A. Konik, Ivar Järving, Dzmitry G. Kananovich, Margus Lopp, Gábor Zoltán Elek, Sandra Kaabel
Publikováno v:
Organic & Biomolecular Chemistry. 15:8334-8340
Tertiary cyclopropanols undergo ring-opening oxidative sulfonylation to afford γ-keto sulfones when reacting with sulfinate salts in the presence of a copper(ii) acetate catalyst and an oxidant (tert-butyl hydroperoxide or atmospheric oxygen). Vario
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72e3ae2ec0f3814a96e5cf7381251f58
https://doi.org/10.1039/c7ob01605k
https://doi.org/10.1039/c7ob01605k
Autor:
Dzmitry G. Kananovich, Ivar Järving, Margus Lopp, Nele Konrad, Marina Kudrjashova, Yulia A. Konik, Sandra Kaabel
Publikováno v:
Organic & Biomolecular Chemistry. 15:4635-4643
Tertiary cyclopropanols easily available from carboxylic esters have been used in the synthesis of distally fluorinated ketones. Cyclopropane ring cleavage reactions in methanol with aqueous tert-butyl hydroperoxide in the presence of a copper(ii) ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cbec0741d369aaaeae3a4190c880acb
https://doi.org/10.1039/c7ob00680b
https://doi.org/10.1039/c7ob00680b
Asymmetric synthesis with titanacyclopropane reagents: From early results to the recent achievements
Autor:
Dzmitry G. Kananovich, Yulia A. Konik
Publikováno v:
Tetrahedron Letters. 61:152036
The discovery of titanium alkoxide-catalyzed cyclopropanation of carboxylic esters with Grignard reagents in the late 1980s (Kulinkovich reaction) commenced the era of titanacyclopropanes [titanium(II)-alkene complexes] in organic synthesis. Despite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14d7da4bdf7cab44450b425421a20c74
https://doi.org/10.1016/j.tetlet.2020.152036
https://doi.org/10.1016/j.tetlet.2020.152036
Publikováno v:
Tetrahedron. 69:6673-6678
The reaction of isopropyl 4-chlorobutyrate with 3 equiv of n-BuMgBr in the presence of 1 equiv of titanium(IV) (4R,5R)-TADDOLate in diethyl ether led to the formation of (1S,2S)-(3-chloropropyl)-2-ethylcyclopropanol in 55–70% yield and 55–65% ee.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::250115a1161c84d180fc236e74193776
https://doi.org/10.1016/j.tet.2013.05.118
https://doi.org/10.1016/j.tet.2013.05.118
Publikováno v:
ChemInform. 46
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0393ae8216f03bc754f183947aa7c95
https://doi.org/10.1002/chin.201539048
https://doi.org/10.1002/chin.201539048
Publikováno v:
Chemical communications (Cambridge, England). 51(39)
Tertiary cyclopropanols react rapidly with Togni reagent in methanol at room temperature in the presence of catalytic amounts (3 mol%) of CuCl affording β-trifluoromethyl ketones in 65–73% isolated yields. Ring opening in 1,2-dialkylsubstituted cy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7e724a3b02b11abe6b1a99716e59981
https://pubmed.ncbi.nlm.nih.gov/25882978
https://pubmed.ncbi.nlm.nih.gov/25882978