Angewandte Chemie International Edition

Cover image for Vol. 54 Issue 31

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, ChemPlusChem, Zeitschrift für Chemie

54_31/2015Cover Picture: Synthesis of Previously Inaccessible Borylated Heterocycle Motifs Using Novel Boron-Containing Amphoteric Molecules (Angew. Chem. Int. Ed. 31/2015)

Boron-containing 1,2,4-amphoteric molecules for generating borylated heterocycles with C-C bonds in uncommon positions are described by A. K. Yudin et al. in their Communication on page 9038 ff. If the boron-containing heterocycles are likened to flowers, the newly developed molecules would be the sprouts of this new approach, and the growth of the shoots through the soil the production of 1,4-dicarbonylboronate intermediates upon photoredox-mediated “germination”. The intermediates undergo condensation reactions with a range of nucleophiles, blossoming into heterocycles of medicinal significance.

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Also of Interest

Boron-containing 1,2,4-amphoteric molecules for generating borylated heterocycles with C-C bonds in uncommon positions are described by A. K. Yudin et al. in their Communication on page 9038 ff. If the boron-containing heterocycles are likened to flowers, the newly developed molecules would be the sprouts of this new approach, and the growth of the shoots through the soil the production of 1,4-dicarbonylboronate intermediates upon photoredox-mediated “germination”. The intermediates undergo condensation reactions with a range of nucleophiles, blossoming into heterocycles of medicinal significance.

Sustainable Chemistryfor001

In their Communication on page 8928 ff., Y. Yang, S. H. Mushrif, and co-workers show that an oxygen atom of an surface lattice of copper oxide activates the formyl C-H bond in glucose.


Fluoromethylationfor002

In their Communication on page 9079 ff., X. Zhang et al. report an efficient and straightforward strategy for the Ni-catalyzed fluoromethylation of aryl boronic acids employing the industrial raw material CH2FBr as the coupling partner.


δ Complexesfor003

Y.-C. Tsai et al. present compounds in their Communication on page 9106 ff. in which a Mo-Mo pentuple bond acts as a ligand for transition-metal complex fragments. The bonding situation in these δ complexes can be described by the Dewar–Chatt model.


54_31i/2015Inside Cover: Coordination Assembly of Discoid Nanoparticles (Angew. Chem. Int. Ed. 31/2015)

Zinc(II) ions and carboxylate groups coordinate on the surface of FeS2 nanoparticles to induce to formation von FeS2 multiparticle sheets with liquid-crystal-like organization. The nanoscale porosity of the sheets combined with fast hole transport leads to high electrocatalytic activity, as C. Uher, N. Kotov et al. explain in their Communication on page 8966 ff. Conductivity and carrier mobility of the p-conductive films exceed those known for coordination compounds and metal–organic frameworks.

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54_31c/2015Inside Back Cover: Facile Access to Fluoromethylated Arenes by Nickel-Catalyzed Cross-Coupling between Arylboronic Acids and Fluoromethyl Bromide (Angew. Chem. Int. Ed. 31/2015)

Nickel-catalyzed fluoromethylation of aryl boronic acids was achieved with the industrial raw material fluoromethyl bromide (CH2FBr) as the coupling partner. In their Communication on page 9079 ff., X. Zhang et al. report an efficient and straightforward method for the late-stage fluoromethylation of aryl boronic acids, providing facile access to fluoromethylated biologically relevant molecules. In the picture, CH2FBr puts the valuable “CH2F” ring on the ArB(OH)2 with the aid of the Ni catalyst.

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54_31b/2015Back Cover: The Mo-Mo Quintuple Bond as a Ligand to Stabilize Transition-Metal Complexes (Angew. Chem. Int. Ed. 31/2015)

Since the preparation of Zeise's salt in 1827 a wealth of transition-metal–main-group element π and σ complexes have been synthesized and characterized. The best interpretation of their bonding is the Dewar–Chatt model. In their Communication on page 9106 ff., Y.-C. Tsai et al. now show that metal–metal bonds, such as the Mo–Mo quintuple bond, can act as a ligand to stabilize transition-metal complex fragments and form δ complexes, and their bonding can still be described by the Dewar–Chatt model.

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