Zobrazeno 1 - 10
of 1 799
pro vyhledávání: '"Gauche effect"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 1572-1579 (2024)
Selective fluorination of the pyrrolidine ring in proline motifs has been found to induce significant conformational changes that impact the structure and biological roles of modified peptides and proteins. Vicinal difluorination of fluoroproline, fo
Externí odkaz:
https://doaj.org/article/85d46fa27108485b92e9c148efd1e5ed
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 80, Iss 6, Pp 577-581 (2024)
The few examples of structures containing the 2-chloro-N,N-dimethylethan-1-aminium or 3-chloro-N,N-dimethylpropan-1-aminium cations show a competition between gauche and anti conformations for the chloroalkyl chain. To explore further the conformatio
Externí odkaz:
https://doaj.org/article/4b29ba88a5fd432cb98a130489ba7819
Autor:
Demet Demirci Gültekin, Arif Daştan, Yavuz Taşkesenligil, Cavit Kazaz, Yunus Zorlu, Metin Balci
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 19, Iss 1, Pp 764-770 (2023)
Previously we reported on the bromination of endo-7-bromonorbornene at different temperatures yielding mixtures of addition products. The structural elucidations of the formed compounds were achieved by NMR spectroscopy. Particularly, the γ-gauche e
Externí odkaz:
https://doaj.org/article/1a3f061d12cf4d0982d634bdd733f1bf
Autor:
Marcus R. Bond, Sajan Silwal
Publikováno v:
IUCrData, Vol 8, Iss 1, p x230015 (2023)
The organic cation in the title molecular salt, C5H13NCl+·Cl−, exhibits the gauche effect with a C—H bond of the C atom β to the chloro group donating electrons to the antibonding orbital of the C—Cl bond to stabilize the gauche conformation
Externí odkaz:
https://doaj.org/article/942331471fcd4e2d8d4003198a82f214
Akademický článek
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Autor:
Yuvixza Lizarme-Salas, Alexandra Daryl Ariawan, Ranjala Ratnayake, Hendrik Luesch, Angela Finch, Luke Hunter
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 2663-2670 (2020)
Piperine, a natural product derived from peppercorns, has a variety of biological activities that make it an attractive lead compound for medicinal chemistry. However, piperine has some problematic physicochemical properties including poor aqueous so
Externí odkaz:
https://doaj.org/article/42e3bb5aa4d2484d8ce4736cb8375a10
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 2469-2476 (2020)
Molecular polarity governs lipophilicity, which in turn determines important agrochemical and environmental properties, such as soil sorption and bioconcentration of organic compounds. Since the C–F bond is the most polar in organic chemistry, the
Externí odkaz:
https://doaj.org/article/e094b509a3a64802874bef5cfe0658dd
Autor:
Cagasova, Kristyna
Malaria is a serious mosquito-borne disease affecting the majority of Earth's southern hemisphere. While consistent efforts to curb malaria spread throughout 20th and early 21st century were largely successful, the recent rise in resistance to antima
Externí odkaz:
http://hdl.handle.net/10919/112877
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 15, Iss 1, Pp 506-512 (2019)
The active species of the Ishikawa´s reagent [N,N-diethyl-(1,1,2,3,3,3-hexafluoropropyl)amine] is a fluorinating hexafluoropropylamine used to convert alcohols into alkyl fluorides. On the other hand, it is also an example of model compound useful t
Externí odkaz:
https://doaj.org/article/604fed4eb3184b03a5ae68d4952ee853
Akademický článek
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