Angewandte Chemie International Edition

Cover image for Vol. 55 Issue 7

Chefredakteur: Peter Gölitz, Stellvertreter: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

Associated Title(s): Angewandte Chemie, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemistryOpen, ChemPlusChem, Zeitschrift für Chemie

Cover Picture: Cobalt(i)-Catalyzed Asymmetric [2+2+2] Cycloaddition of Alkynes and Nitriles: Synthesis of Enantiomerically Enriched Atropoisomers of 2-Arylpyridines (Angew. Chem. Int. Ed. 29/2004)

43_29/2004Nature decided in favor of the left-handed helical isomer for the hop vine shown in the cover picture. In contrast, the [2 + 2 + 2] cycloaddition yielding biaryl nitrogen heterocycles gives access to both enantiomers. In their Communication on p. 3795 ff. A. Gutnov, B. Heller et al. describe this photochemical reaction which is conducted with a chiral cobalt catalyst. (The picture of the hop plant is taken from the book by H. Brunner, Rechts oder Links. In der Natur und anderswo, Wiley-VCH, 1999.)

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