Zobrazeno 1 - 7
of 7
pro vyhledávání: '"František Kafka"'
Publikováno v:
European Journal of Organic Chemistry. 2016:3862-3871
Enantioselective syntheses of densely functionalized pyrrolidines deriving their chirality from (R)-1-(phenyl)ethylamine are reported. Allylic amines and β-substituted-α,β-unsaturated esters are used as the building blocks in this one-pot reaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a08dc56dd7c442649b871d63ef4ed2ce
https://doi.org/10.1002/ejoc.201600621
https://doi.org/10.1002/ejoc.201600621
Autor:
Ivana Císařová, Radek Pohl, Ullrich Jahn, František Kafka, Martin Holan, Blanka Klepetářová, Denisa Hidasová
Publikováno v:
Angewandte Chemie. 126:10102-10106
Oxidative katalytische Einelektronentransfer-Tandemprozesse aus konjugierten Additions- und Radikalreaktionen, die das notwendige stochiometrische Oxidans als Funktionalitat im Produkt einbauen, werden vorgestellt.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f053a51f5a38284f1442ae21d6b33fb0
https://doi.org/10.1002/ange.201403776
https://doi.org/10.1002/ange.201403776
Autor:
Martin Holan, Ullrich Jahn, Denisa Hidasová, Radek Pohl, Blanka Klepetářová, Ivana Císařová, František Kafka
Publikováno v:
Angewandte Chemie International Edition. 53:9944-9948
Oxidative single-electron transfer-catalyzed tandem reactions consisting of a conjugate addition and a radical cyclization are reported, which incorporate the mandatory terminal oxidant as a functionality into the product.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9eaf11c6fcc2edb64269062669e72538
https://doi.org/10.1002/anie.201403776
https://doi.org/10.1002/anie.201403776
Autor:
František Kafka, Radek Cibulka, Hana Dvořáková, Miloslav Sanda, Smita B. Gunnoo, Petra Ménová
Publikováno v:
Advanced Synthesis & Catalysis. 353:865-870
A series of 3-substituted pyrazinium tetrafluoroborates was prepared as simple analogues of flavinium salts which are efficient organocatalysts for oxidations with hydrogen peroxide. It was shown that pyrazinium derivatives with an electron-withdrawi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ee28580fcd19273010dc1bd3bbbfeeb
https://doi.org/10.1002/adsc.201000906
https://doi.org/10.1002/adsc.201000906
Publikováno v:
Tetrahedron. 65:10917-10929
Oxidative radical cyclizations starting from easily accessible N-allylic β-alanine esters are reported. Deprotonation generates the corresponding enolates, which are transformed efficiently into α-ester radicals by single electron transfer mediated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02802d69f3c2e65f71f483f888e69d2e
https://doi.org/10.1016/j.tet.2009.10.034
https://doi.org/10.1016/j.tet.2009.10.034
Autor:
Radek Pohl, Ivana Cisarova, Denisa Hidasová, František Kafka, Martin Holan, Ullrich Jahn, Blanka Klepetarova
Publikováno v:
ChemInform. 46
Catalytic aza-Michael and Michael addition reactions/radical cyclizations/oxygenation reactions which incorporate the N-oxopiperidinium oxidant (III) as a functionality into the products are described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::258a49eaed436dcb92d54294ac275906
https://doi.org/10.1002/chin.201509199
https://doi.org/10.1002/chin.201509199
Autor:
Hana Dvorakova, Miloslav Sanda, Smita B. Gunnoo, Petra Ménová, Radek Cibulka, František Kafka
Publikováno v:
ChemInform. 42
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6271377c2d6bcead83e6a7dc42be163
https://doi.org/10.1002/chin.201136029
https://doi.org/10.1002/chin.201136029