slideshow 16 slideshow 1 slideshow 2 slideshow 3 slideshow 4 slideshow 5 slideshow 6 slideshow 7 slideshow 8 slideshow 0 slideshow 9 slideshow 10 slideshow 11 slideshow 12 slideshow 13 slideshow 14 slideshow 15

Articles from Wiley

Condividi contenuti
The latest chemistry from ChemPubSoc Europe and Wiley-VCH
Aggiornato: 28 settimane 7 ore fa

Achieving High Levels of NMR-Hyperpolarization in Aqueous Media With Minimal Catalyst Contamination Using SABRE

19 luglio, 2017 - 00:00

Achieving High Levels of NMR‐Hyperpolarization in Aqueous Media With Minimal Catalyst Contamination Using SABRE

Show me the money: Catalyst separated hyperpolarization through signal amplification by reversible exchange or CASH-SABRE allows access to strongly enhanced 1H, 13C and 15N NMR signals for a range of substrates in aqueous media through phase-transfer catalysis. Very limited catalyst contamination is observed and hence a biocompatible bolus is readily achieved.

[Communication]
Wissam Iali, Alexandra M. Olaru, Gary G. R. Green, Simon B. Duckett
Chem. Eur. J., July 19, 2017, https://doi.org/10.1002/chem.201702716 Read article

Self-Supported Worm-like PdAg Nanoflowers as Efficient Electrocatalysts towards Ethylene Glycol Oxidation

19 luglio, 2017 - 00:00

Self‐Supported Worm‐like PdAg Nanoflowers as Efficient Electrocatalysts towards Ethylene Glycol Oxidation

Worm your way in: Self-supported worm-like PdAg nanoflowers (NFs) are fabricated by using a facile method. They show greatly enhanced electrocatalytic activity and durability towards the ethylene glycol oxidation reaction. A series of electrochemical measurements reveal that the oxidation reaction occurs on Pd1Ag2 NF-coated electrodes, following a diffusion-controlled process

[Article]
Hui Xu, Bo Yan, Ke Zhang, Jin Wang, Shumin Li, Caiqin Wang, Zhiping Xiong, Yukihide Shiraishi, Yukou Du
ChemElectroChem, July 19, 2017, https://doi.org/10.1002/celc.201700611 Read article

Oxygen-Deficient Three-Dimensional Porous Co<sub>3</sub>O<sub>4</sub> Nanowires as an Electrode Material for Water Oxidation and Energy Storage

19 luglio, 2017 - 00:00

Oxygen‐Deficient Three‐Dimensional Porous Co3O4 Nanowires as an Electrode Material for Water Oxidation and Energy Storage

Vacant expression: Oxygen deficient 3D porous Co3O4 nanowires are prepared through NaBH4-treatment of pristine 3D Co3O4. Owing to the enhanced conductivity, as a result of the oxygen deficiency, the oxygen-deficient 3D porous Co3O4 nanowires display superior lithium storage performance compared to the pristine one.

[Communication]
Xiaolei Fan, Muhammad-Sadeeq Balogun, Yongchao Huang, Yexiang Tong
ChemElectroChem, July 19, 2017, https://doi.org/10.1002/celc.201700607 Read article

Switching Futile <i>para</i>-Quinone to Efficient Reactive Oxygen Species Generator: Ubiquitin-Specific Protease-2 Inhibition, Electrocatalysis, and Quantification

19 luglio, 2017 - 00:00

 Ubiquitin‐Specific Protease‐2 Inhibition, Electrocatalysis, and Quantification

Mode of action: The importance of a unique pattern, N−C=O−N, in para-quinones for efficient reactive oxygen species (ROS) generation is demonstrated for the first time through ubiquitin specific protease 2 (USP2) inhibition, cyclic voltammetry, electrocatalysis, and chemiluminescence studies.

[Communication]
Pushparathinam Gopinath, Atif Mahammed, Tal Eilon-Shaffer, Mickal Nawatha, Shimrit Ohayon, Doron Shabat, Zeev Gross, Ashraf Brik
ChemBioChem, July 19, 2017, https://doi.org/10.1002/cbic.201700330 Read article

A Boronic Acid Assay for the Detection of Mucin-1 Glycoprotein from Cancer Cells

19 luglio, 2017 - 00:00

A Boronic Acid Assay for the Detection of Mucin‐1 Glycoprotein from Cancer Cells

Disease detection: Glycoproteins such as mucin-1 commonly exhibit aberrant glycosylation patterns in diseased cells, thereby providing a marker for diagnosis. Immobilizing boronic acid–biotin sensors onto streptavidin microplates resulted in a multivalent surface for sensitive and high-throughput detection of glycoproteins by using chemiluminescence signal transduction, which was applied to directly detect mucin-1 in cancer cell lysates.

[Communication]
Xiaoyu Zhang, Shiqiang Zhang, Seung Joon Baek, Michael D. Best
ChemBioChem, July 19, 2017, https://doi.org/10.1002/cbic.201700288 Read article

Extended Catalytic Scope of a Well-Known Enzyme: Asymmetric Reduction of Iminium Substrates by Glucose Dehydrogenase

19 luglio, 2017 - 00:00

 Asymmetric Reduction of Iminium Substrates by Glucose Dehydrogenase

Doing it all: Glucose dehydrogenase (GDH) was applied as a cofactor regeneration system in the characterization of imine reductases (IREDs) in the reduction of bicyclic iminium compounds. Both enzyme types were found to be capable of reducing such substrates.

[Communication]
Sebastian Roth, Andreas Präg, Cindy Wechsler, Marija Marolt, Sascha Ferlaino, Steffen Lüdeke, Nicolas Sandon, Dennis Wetzl, Hans Iding, Beat Wirz, Michael Müller
ChemBioChem, July 19, 2017, https://doi.org/10.1002/cbic.201700261 Read article

Self-Assembled Nano-Immunostimulant for Synergistic Immune Activation

19 luglio, 2017 - 00:00

Self‐Assembled Nano‐Immunostimulant for Synergistic Immune Activation

Union is strength: A strategy for the preparation of three-component selfassembled nano-immunostimulants (SANIs) is reported. Three different immunostimulants work synergistically and SANIs are more efficient to induce immune activation than that of unassembled immunostimulants. SANIs can induce a robust antitumor immune response in vitro and in vivo.

[Full Paper]
Zhan-Yi Sun, Pu-Guang Chen, Yan-Fang Liu, Lei Shi, Bo-Dou Zhang, Jun-Jun Wu, Yu-Fen Zhao, Yong-Xiang Chen, Yan-Mei Li
ChemBioChem, July 19, 2017, https://doi.org/10.1002/cbic.201700246 Read article

Traceless Cleavage of Protein–Biotin Conjugates under Biologically Compatible Conditions

19 luglio, 2017 - 00:00

Traceless Cleavage of Protein–Biotin Conjugates under Biologically Compatible Conditions

Come undone: We demonstrate for the first time that it is possible to tracelessly regenerate biotin-tagged biological amines (peptides and proteins) under extremely mild and biologically compatible conditions. These simple reagents offer new possibilities in the field of chemical biology, particularly in biorthogonal chemistry and proteomics.

[Communication]
Joseph Cowell, Matthew Buck, Ali H. Essa, Rebecca Clarke, Waldemar Vollmer, Daniela Vollmer, Catharien M. Hilkens, John D. Isaacs, Michael J. Hall, Joe Gray
ChemBioChem, July 19, 2017, https://doi.org/10.1002/cbic.201700214 Read article

SNAP-Tag-Based Subcellular Protein Labeling and Fluorescent Imaging with Naphthalimides

19 luglio, 2017 - 00:00

SNAP‐Tag‐Based Subcellular Protein Labeling and Fluorescent Imaging with Naphthalimides

SNAP to it! A two-photon naphthalimide dye was used to develop O6-benzylguanine (BG) derivatives for the specific labeling of subcellular proteins and fluorescent imaging through the SNAP-tag. All showed high labeling efficiency with SNAP-tag in vitro and in bacteria cells, but only one showed highly specific labeling in mammalian cells.

[Full Paper]
Chao Wang, Xinbo Song, Yi Xiao
ChemBioChem, July 19, 2017, https://doi.org/10.1002/cbic.201700161 Read article

Metal-Free Oxidation of Glycerol over Nitrogen-Containing Carbon Nanotubes

18 luglio, 2017 - 00:00

Metal‐Free Oxidation of Glycerol over Nitrogen‐Containing Carbon Nanotubes

NCNTs are friends indeed: A green process for the oxidation of glycerol to value-added dihydroxyacetone is developed using nitrogen-rich carbon nanotubes (NCNTs) as a metal-free catalyst and tert-butyl hydroperoxide as the oxidant. Computational studies combined with experimental results have revealed the role of pyridinic sites for the conversion process. The results implicate a viable metal-free catalyst for biomass-derived glycerol.

[Communication]
Neeraj Gupta, Oleksiy Khavryuchenko, Alberto Villa, Dangsheng Su
ChemSusChem, July 18, 2017, https://doi.org/10.1002/cssc.201700940 Read article

Deep Eutectic Solvents as Reaction Media for the Palladium-Catalysed C−S Bond Formation: Scope and Mechanistic Studies

18 luglio, 2017 - 00:00

 Scope and Mechanistic Studies

Piecing the puzzle: A unique catalytic system, where C−S bonds are formed from aryl boronic acids and sodium metabisulfite, is introduced. The functionalization step is compatible with nucleophiles, electrophiles or radical scavengers and principles of green chemistry, as in a jigsaw. Kinetic experiments were performed, and the results were compared to palladium nanocrystals of different known shapes in order to shed some light on the properties of the catalyst.

[Communication]
Xavier Marset, Gabriela Guillena, Diego J. Ramón
Chem. Eur. J., July 18, 2017, https://doi.org/10.1002/chem.201702892 Read article

Polar Intermetallics Pr<sub>5</sub>Co<sub>2</sub>Ge<sub>3</sub> and Pr<sub>7</sub>Co<sub>2</sub>Ge<sub>4</sub> with Planar Hydrocarbon-Like Metal Clusters

18 luglio, 2017 - 00:00

Polar Intermetallics Pr5Co2Ge3 and Pr7Co2Ge4 with Planar Hydrocarbon‐Like Metal Clusters

Polyatomic and valence-electron-rich Co–Ge clusters with planar hydrocarbon-like geometries are identified in Pr5Co2Ge3 and Pr7Co2Ge4 (see scheme). Complex magnetic properties arise from interactions between Pr and these Co–Ge species.

[Communication]
Qisheng Lin, Kaiser Aguirre, Scott M. Saunders, Timothy A. Hackett, Yong Liu, Valentin Taufour, Durga Paudyal, Sergey Budko, Paul C. Canfield, Gordon J. Miller
Chem. Eur. J., July 18, 2017, https://doi.org/10.1002/chem.201702798 Read article

Core-shell MnO@MnFe<sub>2</sub>O<sub>4</sub> Anchored by Reduced Graphene Oxide as Anode of Li-Ion Batteries Operated under Ultrawide Temperature Range

18 luglio, 2017 - 00:00

Core‐shell MnO@MnFe2O4 Anchored by Reduced Graphene Oxide as Anode of Li‐Ion Batteries Operated under Ultrawide Temperature Range

Harsh reality: A facile solution route to monodisperse MnO@3MnFe2O4@rGO is established. As anode materials of Li-ion batteries, MnO@3MnFe2O4@rGO delivers remarkable cycling performances. Therefore, MnO@3MnFe2O4@rGO nanocomposites can be considered promising battery materials that can be operated in harsh environments.

[Article]
Yao Du, Chun Liu, Shuijing Sun, Songping Wu
ChemElectroChem, July 18, 2017, https://doi.org/10.1002/celc.201700527 Read article

Rearrangement in Stereoretentive Syntheses of Menthyl Chloride from Menthol: Insight into Competing Reaction Pathways through Component Quantification Analysis

17 luglio, 2017 - 00:00

 Insight into Competing Reaction Pathways through Component Quantification Analysis

The surprising retention of configuration and absence of rearrangement in the synthesis of menthyl chloride from menthol has long been taken for granted. Reaction component quantification by means of NMR methods has now revealed a colorful diversity of reaction products. What once was termed “menthyl chloride” may often enough have been a complex assortment.

[Full Paper]
Lukas Hintermann, Kit Ming Wong
Eur. J. Org. Chem., July 17, 2017, https://doi.org/10.1002/ejoc.201700677 Read article

Metal–Organic Framework-Derived FeCo-N-Doped Hollow Porous Carbon Nanocubes for Electrocatalysis in Acidic and Alkaline Media

17 luglio, 2017 - 00:00

Metal–Organic Framework‐Derived FeCo‐N‐Doped Hollow Porous Carbon Nanocubes for Electrocatalysis in Acidic and Alkaline Media

Double-sided cubes: Porphyrinic metal–organic frameworks are employed to produce hollow porous carbon nanocubes with homogeneous FeNx and CoNx dopants by pyrolysis. Thanks to this particular structure, high surface area and synergetic contributions between FeNx and CoNx, the optimized FeCo2-NPC-900 exhibits excellent activity, long-term stability, and MeOH tolerance, surpassing the Pt/C, toward oxygen reduction electrocatalysis in both acidic and alkaline media.

[Communication]
Xinzuo Fang, Long Jiao, Shu-Hong Yu, Hai-Long Jiang
ChemSusChem, July 17, 2017, https://doi.org/10.1002/cssc.201700864 Read article

Biomass-Derived Catalysts for Selective Hydrogenation of Nitroarenes

17 luglio, 2017 - 00:00

Biomass‐Derived Catalysts for Selective Hydrogenation of Nitroarenes

Shelling out for a shrimpy catalyst: Biowaste represents an important source of sustainable chemical precursors. Three heterogeneous catalysts were synthesized from inexpensive chitosan and abundant Co(OAc)2 followed by pyrolysis at various temperatures. The materials were used for the effective and selective hydrogenation of nitroarenes, including some pharmaceutically active compounds.

[Communication]
Basudev Sahoo, Dario Formenti, Christoph Topf, Stephan Bachmann, Michelangelo Scalone, Kathrin Junge, Matthias Beller
ChemSusChem, July 17, 2017, https://doi.org/10.1002/cssc.201700796 Read article

Ionic-Liquid-Assisted Microwave Synthesis of Solid Solutions of Sr<sub>1−<i>x</i></sub>Ba<sub><i>x</i></sub>SnO<sub>3</sub> Perovskite for Photocatalytic Applications

17 luglio, 2017 - 00:00

Ionic‐Liquid‐Assisted Microwave Synthesis of Solid Solutions of Sr1−xBaxSnO3 Perovskite for Photocatalytic Applications

Raising the barium: A sustainable procedure for the preparation of Sr1−xBaxSnO3 perovskites for photocatalytic applications through microwave irradiation in an ionic liquid as a microwave absorbing agent, green solvent, and capping agent is presented.

[Full Paper]
Tarek Alammar, Igor I. Slowing, Jim Anderegg, Anja-Verena Mudring
ChemSusChem, July 17, 2017, https://doi.org/10.1002/cssc.201700615 Read article

Facile Synthesis of a Porous Pd/Cu Alloy and its Enhanced Performance toward Methanol and Formic Acid Electrooxidation

17 luglio, 2017 - 00:00

Facile Synthesis of a Porous Pd/Cu Alloy and its Enhanced Performance toward Methanol and Formic Acid Electrooxidation

Shape-controlled porous Pd/Cu alloy catalysts have been synthesized by a one-pot method, in which the Pd/Cu alloy was formed using l-ascorbic acid as the reducing agent to simultaneously reduce the copper precursor and the palladium precursor (see figure). Electrochemical characterizations show that the Pd/Cu alloy catalysts possess good activity and long-term stability for the electrooxidation of methanol and formic acid compared with commercial Pd/C.

[Full Paper]
Bo Yan, Caiqin Wang, Hui Xu, Ke Zhang, Shumin Li, Yukou Du
ChemPlusChem, July 17, 2017, https://doi.org/10.1002/cplu.201700245 Read article

Acid-Functionalised Magnetic Ionic Liquid [AcMIm]FeCl<sub>4</sub> as Catalyst for Oxidative Hydroxylation of Arylboronic Acids and Regioselective Friedel–Crafts Acylation

17 luglio, 2017 - 00:00

Acid‐Functionalised Magnetic Ionic Liquid [AcMIm]FeCl4 as Catalyst for Oxidative Hydroxylation of Arylboronic Acids and Regioselective Friedel–Crafts Acylation

Attractive separation: The facile oxidative hydroxylation of arylboronic acids and regioselective Friedel–Crafts (F–C; see scheme) acylation of phenols is demonstrated by using an acid-functionalized magnetic ionic liquid (MAIL), 1-acyl-3-methylimidazolium tetrachloroferrate ([AcMIm]FeCl4), as a catalyst and reaction medium.

[Full Paper]
Arijit Saha, Soumen Payra, Dipa Dutta, Subhash Banerjee
ChemPlusChem, July 17, 2017, https://doi.org/10.1002/cplu.201700221 Read article

Phosphorus-Containing Polycyclic Aromatic Hydrocarbons

17 luglio, 2017 - 00:00

Phosphorus‐Containing Polycyclic Aromatic Hydrocarbons

Carbon copies: Examples of phosphorus-containing polycyclic aromatic hydrocarbons (PAHs) and the effect of the phosphorus environment on their electronic properties are reviewed from both experimental and theoretical points of view (see figure).

[Minireview]
Rózsa Sz&#x171;cs, Pierre-Antoine Bouit, László Nyulászi, Muriel Hissler
ChemPhysChem, July 17, 2017, https://doi.org/10.1002/cphc.201700438 Read article

Copyright © 2012 Società Chimica Italiana. All Rights Reserved.