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Cover Picture A Supramolecular Catalyst for Regioselective Hydroformylation of Unsaturated Carboxylic Acids (Angew. Chem. Int. Ed. 22008)

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Cover Picture
Tomš Šmejkal and Bernhard Breit*
The Venus Flytrap waits patiently for unsuspecting prey. Once it recognizes an insect
in the trap, the jaws close and soon the plant digests its meal. In their Communication
on page 311 ff., T. Šmejkal and B. Breit describe the development of a novel catalytic
system which combines supramolecular recognition of the substrate and transitionmetal catalysis. This catalyst can effect challenging transformations such as the
regioselective hydroformylation of an internal alkene.
Hydrogen Activation
The ever-increasing global demands for energy have led to renewed interest in the
chemistry of hydrogen. R. D. Adams and B. Captain summarize recent studies on
unsaturated mixed-metal cluster complexes for the activation of hydrogen in their
Minireview on page 252 ff.
Asymmetric Allylations
The Review by S. Ma and Z. Lu on page 258 ff. illustrates the substrate scope for
metal-catalyzed asymmetric allylic alkylations. In practice, most catalytic systems are
metal complexes of Pd, Mo, Ir, or Cu with chiral phosphorus ligands.
Actinide Clusters
Plutonium(IV) in aqueous solutions often forms ill-defined precipitates. As
described in the Communication on page 298 ff., L. Soderholm, P. C. Burns, et al.
were able to characterize monodisperse PuO2-based nanoparticles formed in such
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acid, hydroformylation, carboxylic, unsaturated, 22008, int, cover, angel, chem, supramolecular, regioselectivity, picture, catalyst
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