Zobrazeno 1 - 10
of 210
pro vyhledávání: '"Péter, Bagi"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 818-832 (2020)
A series of 1-substituted-3-methyl-2-phospholene oxides was prepared from the corresponding 3-phospholene oxides by double bond rearrangement. The 2-phospholene oxides could be obtained by heating the 3-phospholene oxides in methanesulfonic acid, or
Externí odkaz:
https://doaj.org/article/51abca13af7c40359b74e201eeb672f1
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
Autor:
Petra R. Varga, Alexandra Belovics, Péter Bagi, Szilárd Tóth, Gergely Szakács, Szilvia Bősze, Rita Szabó, László Drahos, György Keglevich
Publikováno v:
Molecules, Vol 27, Iss 7, p 2067 (2022)
An efficient method applying acyl chlorides as reagents was developed for the acylation of the hindered hydroxy group of dialkyl α-hydroxy-benzylphosphonates. The procedure did not require any catalyst. A few acylations were also performed with the
Externí odkaz:
https://doaj.org/article/aeef1e55b51e4ae3802306d75ad26299
Publikováno v:
ACS Omega. 7:43283-43289
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3e453bcacf770a91b26468e3c7bf82f
https://doi.org/10.1021/acsomega.2c06102
https://doi.org/10.1021/acsomega.2c06102
Autor:
Zsuzsanna Fehér, Dóra Richter, Sándor Nagy, Péter Bagi, Zsolt Rapi, András Simon, László Drahos, Péter Huszthy, Péter Bakó, József Kupai
Publikováno v:
Molecules, Vol 26, Iss 21, p 6542 (2021)
This work presents the synthesis of six new phase-transfer organocatalysts in which the squaramide unit is directly linked to the nitrogen atom of an aza-crown ether. Four chiral skeletons, namely hydroquinine, quinine, cinchonine (cinchonas), and α
Externí odkaz:
https://doaj.org/article/3043392d84704e3ab447a2447677f472
Publikováno v:
Molecules, Vol 26, Iss 15, p 4668 (2021)
Carbohydrate-based crown ethers have been reported to be able to generate asymmetric induction in certain reactions. Previously, it was proved that the monosaccharide unit, the anomeric substituent, and the sidearm could influence the catalytic activ
Externí odkaz:
https://doaj.org/article/f65830edd879482c991d7f3ad0bdacce
Autor:
Balázs Szemenyei, Marianna Firisz, Péter Baranyai, Péter Bagi, László Drahos, Ildikó Móczár, Péter Huszthy
Publikováno v:
Periodica Polytechnica Chemical Engineering. 66:541-549
(R,R)- and (S,S)-enantiomers of anthracene-containing pyridino-18-crown-6 ether having tert-butyl groups at the stereogenic centers were prepared with the aim of achieving higher enantioselectivity than for the reported (S,S)-analogue having isobutyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::104e8308feed2827a1e2c085d50d6323
https://doi.org/10.3311/ppch.20468
https://doi.org/10.3311/ppch.20468
Autor:
Péter Kisszékelyi, Zsuzsanna Fehér, Sándor Nagy, Péter Bagi, Petra Kozma, Zsófia Garádi, Miklós Dékány, Péter Huszthy, Béla Mátravölgyi, József Kupai
Publikováno v:
Symmetry, Vol 13, Iss 3, p 521 (2021)
In this work, anchoring of cinchona derivatives to trifunctional cores (hub approach) was demonstrated to obtain size-enlarged organocatalysts. By modifying the cinchona skeleton in different positions, we prepared four C3-symmetric size-enlarged cin
Externí odkaz:
https://doaj.org/article/c47f86768822460db74b1c933684a889
Autor:
József Kupai, Gyula Dargó, Sándor Nagy, Dávid Kis, Péter Bagi, Béla Mátravölgyi, Blanka Tóth, Péter Huszthy, László Drahos
Publikováno v:
Synthesis. 54:3823-3830
The synthesis of chiral proline-derived squaramide and thiosquaramide organocatalysts, which are capable of the dual activation in asymmetric reactions is reported. The (thio)squaramide moiety can form hydrogen bonds to activate the substrates and to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b2c7d0899221679fbd0737e817d55c6
https://doi.org/10.1055/s-0040-1719886
https://doi.org/10.1055/s-0040-1719886
Publikováno v:
Symmetry, Vol 12, Iss 5, p 758 (2020)
Two dimethyl α-hydroxy-arylmethylphosphonates (aryl = Ph and 2-MeOPh) were subjected to optical resolution via diastereomer complex formation applying the acidic calcium salt of O,O′-dibenzoyl-(2R,3R)-tartaric acid as the resolving agent. The domi
Externí odkaz:
https://doaj.org/article/49dd93de045b4ff5a350b165d9c9bdf2