ChemistryOpen

Cover image for Vol. 5 Issue 4

Early View (Online Version of Record published before inclusion in an issue)

Editors: Karen Hindson, Haymo Ross; Deputy Editor: Kate Lawrence

Impact Factor: 3.585

ISI Journal Citation Reports © Ranking: 2015: 42/163 (Chemistry Multidisciplinary)

Online ISSN: 2191-1363

Associated Title(s): Angewandte Chemie International Edition, Chemistry - A European Journal, Chemistry – An Asian Journal

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  1. Cover Profiles

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      Acid-Responsive Absorption and Emission of 5-N-Arylaminothiazoles: Emission of White Light from a Single Fluorescent Dye and a Lewis Acid

      Kirara Yamaguchi, Prof. Dr. Toshiaki Murai, Dr. Jing-Dong Guo, Prof. Dr. Takahiro Sasamori and Prof. Dr. Norihiro Tokitoh

      Version of Record online: 22 SEP 2016 | DOI: 10.1002/open.201600106

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      “The combination of a single fluorescent Lewis basic dye and a Lewis acid achieved a white-light emission. Evaluation on the basis of the International Commission on Illumination coordinates clearly shows a linear color change from blue to orange…” Learn more about the story behind the research featured on the front cover in this issue's Cover Profile. Read the corresponding article at 10.1002/open.201600059.

  2. Full Papers

    1. You have full text access to this OnlineOpen article
      Catalytic Degradation of Benzene over Nanocatalysts containing Cerium and Manganese

      Zhen Wang, Yuzhou Deng, Genli Shen, Sadia Akram, Ning Han, Yunfa Chen and Dr. Qi Wang

      Version of Record online: 21 SEP 2016 | DOI: 10.1002/open.201600047

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      Various vacancies: The catalytic oxidation of benzene goes through several stages. In general, a benzene molecule adsorbed at the surface of a catalyst reacts with surface active oxygen species to obtain the final products (CO2 and H2O). During the process, surface active oxygen species are closely related to the catalyst microstructure, mainly as oxygen vacancies. Gaseous oxygen is activated at the surface to produce O2 and O, which adsorb the surface vacancy; meanwhile, the supporter can release lattice oxygen to form a vacancy (surface and bulk), which can store and transport active oxygen species to ensure the reaction.

  3. Cover Pictures

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      Induction of an Infinite Periodic Minimal Surface by Endowing An Amphiphilic Zwitterion with Halogen-Bond Ability

      Dr. Takahiro Ichikawa, Akiyoshi Okafuji, Takashi Kato and Prof. Hiroyuki Ohno

      Version of Record online: 21 SEP 2016 | DOI: 10.1002/open.201600108

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      The Back Cover picture illustrates the attachment of iodine atoms onto the headgroup of an amphiphilic zwitterion, which leads to the formation of a bicontinuous cubic liquid-crystalline assembly with a primitive-type infinite periodic minimal surface.More information can be found in the Communication by T. Ichikawa, H. Ohno and co-workers (DOI: 10.1002/open.201600054).

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      Acid-Responsive Absorption and Emission of 5-N-Arylaminothiazoles: Emission of White Light from a Single Fluorescent Dye and a Lewis Acid

      Kirara Yamaguchi, Prof. Dr. Toshiaki Murai, Dr. Jing-Dong Guo, Prof. Dr. Takahiro Sasamori and Prof. Dr. Norihiro Tokitoh

      Version of Record online: 21 SEP 2016 | DOI: 10.1002/open.201600107

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      The Front Cover picture shows structures of the key compounds and the change in the fluorescence. Although electron-donating and -accepting groups of monocyclic 5-N,N-diarylaminothiazoles are not in the same plane but highly deviated, they show relatively strong fluorescence from blue to orange. In particular, the addition of Brønsted and Lewis acids to 5-N,N-diaryl-2-(4-pyridyl)thiazoles shifts the absorption and emission to longer wavelengths. The thiazoles and acids form 1:1 complexes. Fine tuning of the amount of added B(C6F5)3 enables us to provide a white-light emission with a single fluorescent molecule.More information can be found in the Communication by T. Murai and co-workers (DOI: 10.1002/open.201600059).

  4. Full Papers

    1. You have full text access to this OnlineOpen article
      Elucidation of the Enantiodiscrimination Properties of a Nonracemic Chiral Alignment Medium through Gel-based Capillary Electrochromatography: Separation of the Mefloquine Stereoisomers

      Dr. “Ayat Allah” Al-Massaedh, Dr. Manuel Schmidt, Prof. Dr. Ute Pyell and Dr. Uwe M. Reinscheid

      Version of Record online: 16 SEP 2016 | DOI: 10.1002/open.201600085

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      Two birds with one stone: Is it possible to use an NMR alignment medium for chromatography? The answer is given by the enantioseparation of mefloquine through gel-based capillary electrochromatography with a chiral alignment medium designed for enantioselecive anisotropic NMR studies.

  5. Communications

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      Affinity Capturing and Surface Enrichment of a Membrane Protein Embedded in a Continuous Supported Lipid Bilayer

      Dr. Anders Gunnarsson, Dr. Lisa Simonsson Nyström, Dr. Sabina Burazerovic, Jenny Gunnarsson, Dr. Arjan Snijder, Dr. Stefan Geschwindner and Prof. Dr. Fredrik Höök

      Version of Record online: 22 AUG 2016 | DOI: 10.1002/open.201600070

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      Moral support: Affinity capturing and enrichment of a His6-tagged membrane protein (β-secretase) is demonstrated while it remains embedded in a continuous lipid membrane.

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      Synthesis of Functional Fluorescent BODIPY-based Dyes through Electrophilic Aromatic Substitution: Straightforward Approach towards Customized Fluorescent Probes

      Dr. Giorgio Mirri, Daniël C. Schoenmakers, Dr. Paul H. J. Kouwer, Prof. Dr. Peter Veranič, Prof. Igor Muševič and Dr. Bogdan Štefane

      Version of Record online: 19 AUG 2016 | DOI: 10.1002/open.201600067

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      One step for man… A simple and straightforward method for the specific functionalization of position 2 of BODIPY cores based on electrophilic aromatic substitution is presented. The method allows the one-step preparation of customized functional fluorescent dyes directly from commercially available materials.

  6. Full Papers

    1. You have full text access to this OnlineOpen article
      Ionic Liquid Solvation versus Catalysis: Computational Insight from a Multisubstituted Imidazole Synthesis in [Et2NH2][HSO4]

      Yusif Abdullayev, Vagif Abbasov, Lucas C. Ducati, Avtandil Talybov and Jochen Autschbach

      Version of Record online: 17 AUG 2016 | DOI: 10.1002/open.201600066

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      Two for the price of one? A four-component multisubstituted imidazole formation reaction is studied computationally in the presence of [Et2NH2][HSO4] ionic liquid (IL). Catalytic and solvation effects of the IL are determined. Proton transfer between the IL (cationic and anionic components) and substrates cause a dual catalytic effect.

  7. Reviews

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      Chemical O-Glycosylations: An Overview

      Dr. Rituparna Das and Dr. Balaram Mukhopadhyay

      Version of Record online: 17 AUG 2016 | DOI: 10.1002/open.201600043

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      Chasing diversity: Chemical O-glycosylation remains a challenge for the preparation of diverse glycosidic linkages that are present in nature. The 21st century has seen a significant development in the area of chemical O-glycosylation. This Review illustrates these developments in a comprehensive manner and concludes with the scope for further development.

  8. Full Papers

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      Regioselective Synthesis of a Family of β-Lactams Bearing a Triazole Moiety as Potential Apoptosis Inhibitors

      Dr. Maria Garrido, Dr. Miriam Corredor, Dr. Mar Orzáez, Dr. Ignacio Alfonso and Prof. Angel Messeguer

      Version of Record online: 2 AUG 2016 | DOI: 10.1002/open.201600052

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      Family affairs: A sequence involving an Ugi multicomponent reaction followed by a completely regioselective cyclization under mild conditions made the preparation of a short library of β-lactam derivatives possible. These β-lactam derivatives show an improved profile as potential apoptosis inhibitors in terms of potency and water solubility.

  9. Communications

    1. You have full text access to this OnlineOpen article
      Induction of an Infinite Periodic Minimal Surface by Endowing An Amphiphilic Zwitterion with Halogen-Bond Ability

      Dr. Takahiro Ichikawa, Akiyoshi Okafuji, Takashi Kato and Prof. Hiroyuki Ohno

      Version of Record online: 2 AUG 2016 | DOI: 10.1002/open.201600054

      Thumbnail image of graphical abstract

      Periodic minimal interface: Attachment of iodine atoms onto the headgroup of an amphiphilic zwitterion leads to the formation of a bicontinuous cubic liquid-crystalline assembly with a primitive-type infinite periodic minimal surface. Halogen bonding between the iodine atoms and the anions plays an important role in controlling the interface curvature of the assembly.

    2. You have full text access to this Open Access content
      Acid-Responsive Absorption and Emission of 5-N-Arylaminothiazoles: Emission of White Light from a Single Fluorescent Dye and a Lewis Acid

      Kirara Yamaguchi, Prof. Dr. Toshiaki Murai, Dr. Jing-Dong Guo, Prof. Dr. Takahiro Sasamori and Prof. Dr. Norihiro Tokitoh

      Version of Record online: 2 AUG 2016 | DOI: 10.1002/open.201600059

      Thumbnail image of graphical abstract

      White-light emission: The combination of a single fluorescent Lewis basic dye and a Lewis acid achieved a white-light emission. Evaluation on the basis of the International Commission on Illumination coordinates clearly shows a linear color change from blue to orange.

  10. Full Papers

    1. You have full text access to this Open Access content
      Synthesis of a New Series of Sialylated Homo- and Heterovalent Glycoclusters by using Orthogonal Ligations

      Dr. Gour Chand Daskhan, Carlo Pifferi and Prof. Dr. Olivier Renaudet

      Version of Record online: 22 JUL 2016 | DOI: 10.1002/open.201600062

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      Extending molecular diversity: A straightforward convergent protocol based on orthogonal chemoselective ligations is described to generate heteromultivalency in a controlled manner. Copper-catalyzed azide–alkyne cycloaddition (CuAAC) and thiol-ene coupling (TEC) are first used to functionalize cyclopeptide scaffolds with propargyl and thiol glycosides to generate tetravalent heteroglycoclusters with 2:2 combinations of sugars. In addition, these compounds can be easily (hetero)dimerized by pH-dependent sequential coupling with diethyl squarate to afford various octavalent structures.

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