Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Zsolt Rapi"'
Publikováno v:
Molecules, Vol 28, Iss 23, p 7905 (2023)
The recovery and reuse of the enantioselective catalysts produced by tedious work are important not only from the perspective of green chemistry, but also from the point of view of productivity. Some of the carbohydrate-based crown ethers prepared in
Externí odkaz:
https://doaj.org/article/729fe21819c44bbfba58bb36b7911591
Publikováno v:
Symmetry, Vol 15, Iss 9, p 1714 (2023)
Carbohydrate-based macrocycles can be enantioselective catalysts in certain reactions. Previously, it was proven that the carbohydrate moiety could affect the catalytic activity of the monoaza-15-crown-5 type macrocycles derived from sugars. Accordin
Externí odkaz:
https://doaj.org/article/aba0addec3aa48e78f218782441ae77d
Publikováno v:
Chemistry, Vol 3, Iss 2, Pp 550-577 (2021)
Carbohydrate-based crown ethers represent a special group of chiral phase transfer catalysts. Several derivatives of these macrocycles have been synthesized in our research group. Among these compounds, monoaza-15-crown-5 lariat ethers proved to be e
Externí odkaz:
https://doaj.org/article/b8c82866ac9b4db0a3de5ff044bc9292
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
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 2, Pp 253-256 (2016)
In the racemic title compound, C17H15ClN2O4, which has been synthesized and the crystal structure of the solvent-free molecule determined, the angle between the planes of the benzene and cyclopropane rings is 54.29 (10)°. The molecular conformation
Externí odkaz:
https://doaj.org/article/d6e532d71de44a3bb85385ba51ccbe94
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 2, Pp 257-260 (2016)
In the racemic title compound, C24H25NO9, the dihedral angle between the planes of the two benzene-ring systems is 80.16 (6)°, while the side-chain conformation is stabilized by a methylene–carboxyl C—H...O hydrogen bond. Weak intermolecular C
Externí odkaz:
https://doaj.org/article/5e6aa3ee40ee4fe8a8591b8f3fe3ebd6
Publikováno v:
ARKIVOC, Vol 2012, Iss 8, Pp 36-48 (2012)
Externí odkaz:
https://doaj.org/article/7796350fff12430ca7769b7a4be50aa9
Autor:
Zsolt Rapi, István Orbán
Publikováno v:
Arkivoc. 2022:339-361
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2a4ec593346a286fab615e59e0deb09
https://doi.org/10.24820/ark.5550190.p011.898
https://doi.org/10.24820/ark.5550190.p011.898
Publikováno v:
Chemistry, Vol 3, Iss 39, Pp 550-577 (2021)
Carbohydrate-based crown ethers represent a special group of chiral phase transfer catalysts. Several derivatives of these macrocycles have been synthesized in our research group. Among these compounds, monoaza-15-crown-5 lariat ethers proved to be e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::433933566d401e12f123a91ab34563b8
https://doi.org/10.3390/chemistry3020039
https://doi.org/10.3390/chemistry3020039