Journal ArticleDOI
Electron Transfer‐Catalyzed Diels–Alder Reactions with 2‐Vinylindoles
Olaf Wiest,Eberhard Steckhan +1 more
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This article is published in Angewandte Chemie.The article was published on 1993-06-01. It has received 35 citations till now. The article focuses on the topics: Reaction mechanism & Nitrile.read more
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Photocatalysis for the formation of the C-C bond.
Journal ArticleDOI
Why, on interaction of urea-based receptors with fluoride, beautiful colors develop.
TL;DR: Urea-based receptors, containing electron-withdrawing chromogenic substituents, in a DMSO solution, in the presence of varying excess of fluoride, do not form H-bond complexes, but undergo stepwise deprotonation of the two N-H fragments, an event which is signaled by the development of vivid colors.
Journal ArticleDOI
Multiple hydrogen bond stabilization of a sandwich complex of sulfate between two macrocyclic tetraamides.
TL;DR: Crystallographic findings in the case of sulfate indicate an unusual sulfate sandwich complex, in which a single sulfate ion is held between two macrocyclic amides by hydrogen bonds to eight amides.
Journal ArticleDOI
Anion receptors: a new class of amide/quaternized amine macrocycles and the chelate effect.
TL;DR: A new class of tetraamide macrocyclic receptors for anions with two quaternized amine functionalities exhibited higher affinities for anion compared with the corresponding neutral amides.
Journal ArticleDOI
Tripodal Ionophore with Sulfate Recognition Properties for Anion-Selective Electrodes
TL;DR: A new class of ionophores that incorporates aminochromenone moieties linked through urea spacers to different scaffolds that preorganize the ionophore binding cleft into tripodal topologies shows anti-Hofmeister behavior with an improved selectivity for sulfate.
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Cation radical Diels-Alder cycloadditions in organic synthesis. A formal total synthesis of (-)-.beta.-selinene
Bijan Harirchian,Nathan L. Bauld +1 more