Výsledky vyhledávání

Akademický článek

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Akademický článek

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Akademický článek

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Influence of Substituents on the Rotational Energy Barrier of Axially Chiral Biphenyls, II

Autor: Christian Roussel, Christian Wolf, Detlev H. Hochmuth, Wilfried A. König

Publikováno v: Liebigs Annalen. 1996:357-363

The influence of substituents on the rotational energy barrier of a series of 2,2′-bis(trifluoromethyl)- and 2,2′-diisopropylbiphenyl derivatives with various substitution patterns was investigated by dynamic gas chromatography (DGC) with selecti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f6b737c1e4427b93f332b899fbfc46c
https://doi.org/10.1002/jlac.199619960310

Zobrazit plný text záznamu

Determination of the Rotational Energy Barrier of Planar-Chiral Cyclophanes Using Dynamic Enantioselective Gas Chromatography and Computer Simulation

Autor: Wilfried A. König, Detlev H. Hochmuth

Publikováno v: Liebigs Annalen. 1996:947-951

We synthesized numerous new monosubstituted dioxa[11]-paracyclophanes, which are planar-chiral atropisomers due to the hindered rotation of the bridge about the aromatic plane, and we were able to resolve the enantiomers of these compounds by enantio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7a99488a6fc436139e0afb7f53f6ae36
https://doi.org/10.1002/jlac.199619960613

Zobrazit plný text záznamu

Enantioselective Gas Chromatography in Flavor and Fragrance Analysis: Strategies for the Identification of Known and Unknown Plant Volatiles

Autor: Wilfried A. König, Detlev H. Hochmuth

Publikováno v: Journal of Chromatographic Science. 42:423-439

This review describes current analytical technology for the analysis of chiral constituents in essential oils and other natural volatiles, flavor and fragrance compounds, and covers some important results achieved by natural compound chemists, food c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::828338bc24ecdacca128a565475f2e50
https://doi.org/10.1093/chromsci/42.8.423

Zobrazit plný text záznamu

Synthesis, resolution, and investigation of the rotational interconversion process of atropisomeric 1,n-diaza[n]paracyclophanes using cyclodextrin-mediated capillary zone electrophoresis

Autor: Klaus Scharwächter, Wilfried A. König, Helmutt Dittmann, Detlev H. Hochmuth

Publikováno v: Chirality. 13:679-690

A number of variously monosubstituted 1,n-diaza[n]paracyclophanes (n = 10–12), which show planar chirality and atropisomerism due to hindered rotation about single bonds, were synthesized via a classical route to analyze their stereodynamic propert

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e63c59f2943dd969c47853bd08fd38d3
https://doi.org/10.1002/chir.10024

Zobrazit plný text záznamu

Ci Symmetric and Non-Centrosymmetric Crystalline Complexes of [60]Fullerene with Octakis(dimethylamino)porphyrazinato-Copper(II) and -Nickel(II)

Autor: Detlev H. Hochmuth, David J. Williams, Anthony G. M. Barrett, Andrew J. P. White, Sarah L. J. Michel, Brian M. Hoffman

Publikováno v: European Journal of Inorganic Chemistry. 2000:593-596

X-ray structural analysis of octakis(dimethylamino)porphyrazinato-metallo(II)·[60]fullerene complexes (M = Cu2+ and Ni2+) surprisingly revealed two totally different supramolecular structures, the first exhibiting a Ci symmetric sandwich complex of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6365b1e7ebdc8e6d3d1659552093b383
https://doi.org/10.1002/(sici)1099-0682(200004)2000:4<593::aid-ejic593>3.0.co

Zobrazit plný text záznamu

Synthesis, resolution and determination of energy barriers to rotation of atropisomeric, planar-chiral [n]paracyclophanes by dynamic enantioselective gas chromatography and computer simulation

Autor: Wilfried A. König, Detlev H. Hochmuth

Publikováno v: Tetrahedron: Asymmetry. 10:1089-1097

We herein report on the synthesis of substituted carbocyclic [11]paracyclophanes, which are planar-chiral and atropisomeric. Their energy barrier to rotation was determined by dynamic enantioselective gas chromatography on selectively modified cyclod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d74951e5dd0f0e925bca148171b8778
https://doi.org/10.1016/s0957-4166(99)00092-0

Zobrazit plný text záznamu

Gas chromatographic enantiomer separation of agrochemicals and polychlorinated biphenyls (PCBs) using modified cyclodextrins

Autor: Christian Wolf, Wilfried A. König, Heinrich Hühnerfuss, Bernd Pfaffenberger, Ingo Hardt, Detlev H. Hochmuth, Bärbel Gehrcke

Publikováno v: Journal of High Resolution Chromatography. 17:859-864

The enantiomers of the polychlorinated polycyclic xenobiotics heptachlor, cis- and trans-chlordane, cis- and trans-heptachlorepoxide, oxychlordane, and bromocyclen have been resolved by gas chromatography with selectively substituted cyclodextrins. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::40886cc875000c76dff46431765e9006
https://doi.org/10.1002/jhrc.1240171209

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání