Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Matej Žabka"'
Autor:
Matej Žabka, Radovan Šebesta
Publikováno v:
Molecules, Vol 20, Iss 9, Pp 15500-15524 (2015)
Chiral thioureas and squaramides are among the most prominent hydrogen-bond bifunctional organocatalysts now extensively used for various transformations, including aldol, Michael, Mannich and Diels-Alder reactions. More importantly, the experimental
Externí odkaz:
https://doaj.org/article/68248475f2f64b03a2347edb46962a72
Autor:
David P. Tilly, Matej Žabka, Inigo Vitorica-Yrezabal, Hazel A. Sparkes, Natalie Pridmore, Jonathan Clayden
Publikováno v:
Tilly, D P, Žabka, M, Vitorica-Yrezabal, I, Sparkes, H A, Pridmore, N & Clayden, J 2022, ' Supramolecular interactions between ethylene-bridged oligoureas : nanorings and chains formed by cooperative positive allostery ', Chemical Science, vol. 13, no. 44, pp. 13153-13159 . https://doi.org/10.1039/d2sc04716k
Ethylene-bridged oligoureas are dynamic foldamers in which the polarity of a coherent chain of intramolecular hydrogen bonds may be controlled by intra- or intermolecular interactions with hydrogen-bond donors or acceptors. In this paper, we describe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6dd0301ba156497456ba9e20090b2ca
https://pubmed.ncbi.nlm.nih.gov/36425488
https://pubmed.ncbi.nlm.nih.gov/36425488
Autor:
Matej Žabka, Ruth Gschwind
In this article, we report that applying in situ LED-NMR irradiation with appropriate wavelength resulted in the photoswitching of an α,β-unsaturated hydrazone C=N double bond configuration. This reaction was previously reported to be the first ste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51aa481de5d3290ccda8d480fd5d582a
Publikováno v:
European Journal of Organic Chemistry. 2019:6077-6087
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::452d45f0eb791a82d4f20d245490a409
https://doi.org/10.1002/ejoc.201901052
https://doi.org/10.1002/ejoc.201901052
Publikováno v:
The Journal of Organic Chemistry
In Bronsted acid catalysis, hydrogen bonds play a crucial role for reactivity and selectivity. However, the contribution of weak hydrogen bonds or multiple acceptors has been unclear so far since it is extremely difficult to collect experimental evid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fd89df7a999d596acc0e48526d85176
http://europepmc.org/articles/PMC6863592
http://europepmc.org/articles/PMC6863592
Autor:
Ruth M. Gschwind, Matej Žabka
Publikováno v:
Chemical Science
In ion pairing catalysis, the structures of late intermediates and transition states are key to understanding and further development of the field. Typically, a plethora of transition states is explored computationally. However, especially for ion pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e45d15cda772f48e5911a9b4e53916d
https://epub.uni-regensburg.de/51137/
https://epub.uni-regensburg.de/51137/
Publikováno v:
Journal of colloid and interface science. 588
Synthesis of a new family of polymers having a polydisulfide structure can be conducted from sulfobetaine-based derivative of natural (R)-lipoic acid. A polydisulfide backbone of polymer can be depolymerized by response to external stimuli and sulfob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::747f61312f2998c6b0e42e83acc3cb1b
https://pubmed.ncbi.nlm.nih.gov/33387822
https://pubmed.ncbi.nlm.nih.gov/33387822
Autor:
Nils Sorgenfrei, Matej Žabka, Johannes Gramüller, Ruth M. Gschwind, Julian Greindl, Fabio Morana, Maxime Melikian, Johnny Hioe, Thomas Hausler, Kerstin Rothermel
Publikováno v:
Chemical Science
NMR H-bond analysis reveals an offset of internal and external acidities of catalysts and allows for a detailed reactivity analysis.
The concept of hydrogen bonding for enhancing substrate binding and controlling selectivity and reactivity is ce
The concept of hydrogen bonding for enhancing substrate binding and controlling selectivity and reactivity is ce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d22bd7cea96cdadfcee8451491847435
https://pubmed.ncbi.nlm.nih.gov/32015815
https://pubmed.ncbi.nlm.nih.gov/32015815
Publikováno v:
Wechsel, R, Ward, J W, Clayden, J & Zabka, M 2018, ' Competing Hydrogen-Bond Polarities in a Dynamic Oligourea Foldamer : A Molecular Spring Torsion Balance ', Journal of the American Chemical Society, vol. 140, no. 10, pp. 3528-3531 . https://doi.org/10.1021/jacs.8b00567
Symmetrical oligourea foldamers were made from meso cyclohexane-1,2-diamine and desymmetrised by incorporating terminal functional groups (carbamates, ureas or thioureas) with differing hydrogen-bonding capacities. Irrespective of solvent, the foldam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5d8437c8789052ec7755cf4a0f008ae
https://pubmed.ncbi.nlm.nih.gov/29494138
https://pubmed.ncbi.nlm.nih.gov/29494138
Autor:
Radovan Šebesta, Matej Žabka
Publikováno v:
Molecules
Molecules, Vol 20, Iss 9, Pp 15500-15524 (2015)
Molecules, Vol 20, Iss 9, Pp 15500-15524 (2015)
Chiral thioureas and squaramides are among the most prominent hydrogen-bond bifunctional organocatalysts now extensively used for various transformations, including aldol, Michael, Mannich and Diels-Alder reactions. More importantly, the experimental
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::967344b2abf41d3587a7d130ed298914
https://doi.org/10.3390/molecules200915500
https://doi.org/10.3390/molecules200915500