Zobrazeno 1 - 10
of 196
pro vyhledávání: '"Elemér Fogassy"'
Publikováno v:
Chemistry, Vol 2, Iss 3, Pp 787-795 (2020)
This perspective is focused on the main parameters determining the results of crystallization of enantiomers or enantiomeric mixtures. It was shown that the ratio of supramolecular and helical associations depends on the eutectic composition of the c
Externí odkaz:
https://doaj.org/article/82e32df1a3a44507ac3327436149a6b4
Autor:
Bence Varga, Levente Buna, Daniella Vincze, Tamás Holczbauer, Béla Mátravölgyi, Elemér Fogassy, György Keglevich, Péter Bagi
Publikováno v:
Molecules, Vol 28, Iss 4, p 1584 (2023)
A focused library of 1-adamantyl arylthiophosphonates was prepared in racemic form. An enantioseparation method was developed for P-stereogenic thiophosphonates using (S)-1-phenylethylamine as the resolving agent. Under optimized conditions, three ou
Externí odkaz:
https://doaj.org/article/0d73e80b7d014f33bdbd5bff4daf3d1c
Publikováno v:
Molecules, Vol 27, Iss 10, p 3134 (2022)
The optically active dibenzoyltartaric acid, tartaric acid, and its sodium salts were successfully applied to the optical resolution of (1R,2S)(1S,2R)-2-(methylamino)-1-phenylpropan-1-ol (EPH) and (1R,2R)(1S,2S)-2-amino-1-(4-nitrophenyl)propane-1,3-d
Externí odkaz:
https://doaj.org/article/37909479199b4ec29e09dfe0e63e9f4b
Publikováno v:
Symmetry, Vol 13, Iss 8, p 1516 (2021)
For rapid and kinetic control-influenced resolutions, it is advisable to choose a resolving agent with the highest possible eutectic composition (eeEuResAg). It may also be advantageous to add the crystalline resolving agent directly to the solution
Externí odkaz:
https://doaj.org/article/0f19271e91ac44df948dfe594bbf2f9e
Publikováno v:
Journal of Chemistry, Vol 2019 (2019)
Resolution process of tofisopam has been re-evaluated now based on our new investigations. Originally, it was carried out in the water-chloroform system, where the intermediate salt of high diastereomeric excess was described as (R)-TOF·(R,R)-DBTA·
Externí odkaz:
https://doaj.org/article/ead6aad081c946a9b56aeef14225bf72
Autor:
Bence Varga, Daniella Vincze, Hajnalka Pető, Levente Buna, János Pauló, Tamás Holczbauer, Béla Mátravölgyi, László Hegedűs, Elemér Fogassy, György Keglevich, Péter Bagi
Publikováno v:
Organic Chemistry Frontiers. 9:2797-2807
An enantioseparation method for the preparation of P-stereogenic H-phosphinates was elaborated. In stereoselective reactions, various chiral P-stereogenic compounds were prepared and their applications as chiral NMR solvating agents were assessed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a05c8b95e161ff52651f165e23e2128a
https://doi.org/10.1039/d2qo00241h
https://doi.org/10.1039/d2qo00241h
Autor:
Tamás Holczbauer, Bence Varga, Réka Herbay, Elemér Fogassy, György Keglevich, Péter Szemesi, Péter Bagi, Petra Nagy
Publikováno v:
The Journal of Organic Chemistry. 86:14493-14507
Secondary phosphine oxides incorporating various aryl and alkyl groups were synthesized in racemic form, and these products formed the library reported in this study. TADDOL derivatives were used to obtain the optical resolution of these P-stereogeni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8c55db2c839db49352e1d3f2bdeae7c
https://doi.org/10.1021/acs.joc.1c01364
https://doi.org/10.1021/acs.joc.1c01364
Publikováno v:
International journal of molecular sciences. 24(1)
In this review, we aim to present new concepts for the revisited separation of enantiomers from racemic compounds and a protocol worth to be followed in designing the preparation of pure enantiomers. We have taken into account not only the influence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::329ad05bae5e09ae0f928ab0446690cc
https://pubmed.ncbi.nlm.nih.gov/36614286
https://pubmed.ncbi.nlm.nih.gov/36614286
Publikováno v:
Chemistry, Vol 2, Iss 51, Pp 787-795 (2020)
This perspective is focused on the main parameters determining the results of crystallization of enantiomers or enantiomeric mixtures. It was shown that the ratio of supramolecular and helical associations depends on the eutectic composition of the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa205372b3f6d17a318b4e0836331dd3
https://www.mdpi.com/2624-8549/2/3/51
https://www.mdpi.com/2624-8549/2/3/51
Autor:
Réka Herbay, Tamás Holczbauer, János Madarász, Elemér Fogassy, Gyorgy Szekely, György Keglevich, Bence Varga, Péter Bagi, Béla Mátravölgyi
Publikováno v:
European Journal of Organic Chemistry. 2020:1840-1852
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1c40829868a475883add81986793c82
https://doi.org/10.1002/ejoc.202000035
https://doi.org/10.1002/ejoc.202000035