Nonaqueous capillary electrophoresis and quantum chemical calculations applied to investigation of acid–base and electromigration properties of azahelicenes

Autor: Veronika Šolínová, Sille Štěpánová, Andrej Jančařík, Jiří Klívar, Michal Šámal, Irena G. Stará, Jana Vacek Chocholoušová, Jaroslav Vacek, Ivo Starý, Václav Kašička

Publikováno v: ELECTROPHORESIS. 43:696-707

Nonaqueous capillary electrophoresis (NACE) using methanol (MeOH) as a solvent of the BGEs and quantum mechanical density functional theory (DFT) have been applied to determine the thermodynamic acidity (ionization) constants (pK

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33030321177e4bc4bacad37f9edb206f
https://doi.org/10.1002/elps.202100331

Chimerical Pyrene-Based [7]Helicenes as Twisted Polycondensed Aromatics

Autor: Jana Vacek Chocholoušová, Miloš Buděšínský, Ivo Starý, Jiří Rybáček, Ivana Císařová, Andrej Jančařík, Graham J. Bodwell, Michal Buchta, Lucie Bednárová, Amit A. Kudale, Irena G. Stará, Jaroslav Vacek

Publikováno v: Chemistry - A European Journal. 21:8910-8917

Chimerical pyrene-based dibenzo[7]helicene rac-1 and 2H-pyran[7]helicene (M,R,R)-(-)-2, in which two pyrene subunits are fused to the [7]helicene/[7]heterohelicene scaffold, were synthesised by means of Ni(0) - or Co(I) -mediated [2+2+2] cycloisomeri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00ef679bfe36300fc1e4b139d5be693b
https://doi.org/10.1002/chem.201500826

Synthesis of Long Oxahelicenes by Polycyclization in a Flow Reactor

Autor: Irena G. Stará, Jaroslav Vacek, David Šaman, Maria Neumeier, Lucie Bednárová, Christophe Coudret, Miroslava Tobrmanová, Ivo Starý, Jiří Rybáček, Michal Šámal, Florence Szydlo, Jindřich Nejedlý, Jana Vacek Chocholoušová, Miloš Buděšínský, Ladislav Sieger

Publikováno v: Angewandte Chemie
Angewandte Chemie, Wiley-VCH Verlag, 2017, 129 (21), pp.5933-5937. ⟨10.1002/ange.201700341⟩
Angewandte Chemie, 2017, 129 (21), pp.5933-5937. ⟨10.1002/ange.201700341⟩

A series of oxahelicenes composed of ortho/meta-annulated benzene/pyridine and 2H-pyran rings were synthesized on the basis of the cobalt(I)-mediated (or rhodium(I)- or nickel(0)-mediated) double, triple, or quadruple [2+2+2] cycloisomerization of br

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c8457dcad28cde4ba331c322d6679a8
https://hal.archives-ouvertes.fr/hal-02195479

The synthesis of π-electron molecular rods with a thiophene or thieno[3,2-b]thiophene core unit and sulfur alligator clips

Autor: Václav Dekoj, Ivo Starý, Jiří Svoboda, Arnošt Seidler, Irena G. Stará, Jaroslav Vacek, Jana Vacek Chocholoušová

Publikováno v: Tetrahedron Letters. 54:2795-2798

A series of short oligo( p -phenylene-ethynylene)- and oligo( p -phenylenevinylene)-type molecular rods with an electronically rich thiophene or thieno[3,2- b ]thiophene core unit and sulfur anchoring groups (AcS−, t -BuS−) at the termini have be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fdef5ee358a333a19cf7c73467d0682c
https://doi.org/10.1016/j.tetlet.2013.03.084

Mechanism of the Isotopic Exchange Reaction of the 5-H Hydrogen of Uracil Derivatives in Water and Nonprotic Solvents

Autor: Jana Vacek Chocholoušová, Martin Dračínský, Antonín Holý, Petr Jansa, Jaroslav Vacek, Soňa Kovačková

Publikováno v: European Journal of Organic Chemistry. 2011:777-785

The mechanism of the isotopic exchange reaction of the 5-H hydrogen of uracil and its methyl derivatives in water and organic solvents has been studied. The key intermediate of the reaction is a C-5 tautomer of uracil in which the carbon atom at the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6901c6f356a3add3b220cf1eb7550cc4
https://doi.org/10.1002/ejoc.201001335