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Cover Picture Cooperative Catalytic Reactions Using Organocatalysts and Transition-Metal Catalysts Enantioselective Propargylic Alkylation of Propargylic Alcohols with Aldehydes (Angew. Chem. Int. Ed. 402010)

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D 3461
www.angewandte.org
2010–49/40
Applications of DNA
S. K. Silverman
Coordinated Amine–Boranes
S. Sabo-Etienne and G. Alcaraz
Highlights: Arylboronates · Cobalt-Catalyzed Asymmetric
Hydrovinylation
ACIEFS 49 (40) 7139–7358 (2010) · ISSN 1433–7851 · Vol. 49 · No. 40
Cover Picture
Masahiro Ikeda, Yoshihiro Miyake, and Yoshiaki Nishibayashi*
A transition-metal catalyst and an organocatalyst work cooperatively to mediate the
enantioselective propargylic alkylation reaction. This process is described by Y.
Nishibayashi and co-workers in their Communication on page 7289 ff. The authors
liken the cooperative action of the catalysts to that of chopsticks.
Coordinated Amine–Boranes
What happens when amine–boranes, such as ammonia–borane, react with
coordinatively unsaturated transition-metal complexes? Answers to this question
are given in the Minireview by S. Sabo-Etienne and G. Alcaraz on page 7170 ff.
Applications of DNA
In recent years, chemists have begun to develop DNA for “laboratory” applications in
catalysis, encoding, and stereochemical control. Key advances in these three exciting
research areas are summarized by S. K. Silverman in his Review on p. 7180 ff.
Anion Receptors
The exceptional p-electron-acceptor strength of HAT(CN)6 renders it an excellent
colorimetric anion sensor. As described by K. Dunbar et al. on p. 7202 ff.,
HAT(CN)6 is a unique case of a p-electron-deficient entity that exhibits
concomitant anion–p and charge-transfer interactions.
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using, reaction, cooperation, alkylation, 402010, enantioselectivity, propargylic, transitional, organocatalysts, alcohol, aldehyde, int, cover, angel, chem, metali, catalytic, picture, catalyst
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