Angewandte Chemie International Edition

Cover image for Vol. 56 Issue 14

Editor: Peter Gölitz, Deputy Editors: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

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

50_04/2011Cover Picture: Metal-Free, Cooperative Asymmetric Organophotoredox Catalysis with Visible Light (Angew. Chem. Int. Ed. 4/2011)

Highly enantioselective α-alkylations of aldehydes are achieved through the cooperative combination of an organocatalytic cycle and a photocatalytic cycle—represented by the slices of citrus fruits in the “catalytic cocktail”. The beautifully orange-colored photocatalyst eosin Y and green-light irradiation are used to replace noble-metal catalysts, as explained by K. Zeitler et al. in their Communication on page 951 ff. (Cover graphics were designed in cooperation with Georg Neumann.)

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Also of Interest

Oxide Nanomaterialsfor001

In their Review on page 826 ff., G. R. Patzke and co-workers describe recent developments in the field of oxide nanomaterials. Particular emphasis is placed on applications, new synthetic methods, and in situ techniques for studying formation mechanisms.

Imaging Agentsfor002

A rhenium carbonyl complex can be mapped inside cancer cells by its IR signature and used to analyze cell topography. C. Policar et al. describe this new approach to imaging in their Communication on page 860 ff.

Dynamic Resolutionfor003

In their Communication on page 865 ff., K. K Baldridge, J. S. Siegel, and co-workers report how an enantiopure rhodium(I) dimethylnorbornadiene reagent can be used in the dynamic resolution of interconverting enantiomers of sym-pentasubstituted corannulenes.